Being slightly (very slight, I have 7 sisters) sexist about things like construction, I was very impressed. Not only do you know what you are talking about you are a natural teacher and very concise with the information presented. (you have a new fan)
Built a large deck during Covid in our yard. Used nails of the correct size and length because they were cheaper than screws. Since I also had a lot of toe nailing to do. I bought a pneumatic palm nailer which made driving all those nails easy. Thanks for the video!
I'm a big advocate of using stainless steel hardware on the latest pressure treated lumber, as it is still quite corrosive on double dipped galvanized screws and nails. I was looking at a church ramp the other day that I built only 2 years ago. The galvanized joist hangers have already begun to corrode. It hasn't helped that a lot of salt is applied to the ramp during the winter months.
Good info 👍. The 45 deg holes are an improvement over the hangers from 30 years ago, those ones you used 1 1/2 in nails straight in. Hurricane ties are way better than toenailing joists, rafters, trusses. The screws make installing easier in tight spots.
Appreciate you sharing your thoughts on screws and the hangers. It’s interesting how much things have improved over the years. Yes, the 45 degree holes are well thought out and make things so much easier. Love the simple improvements. Thanks!
As a software engineer working at a national science research center, the reason I enjoy DIY home improvement construction so much is that it involves Material Science, often called common (construction) sense.
i am glad you did this video, just had a discussion with my stepson about the difference. He and his buddy swear to using screws on everything and i told them absolutely not. I was telling him that screwing in floor joist is the worst thing cause you dont have shear strength.. pulling items together is fine like you said but screws snap and especially if he isnt using the right screw they will snap. I told him to use the screw to bring the wood together and throw some nails in it as well. he won't listen but i tried to tell him. So many people don't use the correct materials and then wonder why it failed. Good job explaining this. Have a great day....
I always like to hear what works for you. It’s good to know and share. Appreciate your take on installing joists. Like you say it’s good to know these things when you build.
This is an awesome video for deck building. Why hasn't Simpson hired this person to do their video. After having read a number of books, online research from mfr to IRC Code. No one has provided this level of detail. Clear, concise, and to the point. No pun intended.
Thank you for a really excellent discussion of the holding power of screws versus that of nails. I agree screws are much stronger. I had heard of hurricane ties in the past, but I've never seen them. Thank you for demonstrating their placement and use.
Great info - really good idea to wear safety glasses anytime working overhead or anytime using power tools in general - It only takes one flying splinter or metal shard to create an eye emergency
I would humbly suggest to you and your followers that in addition to joist hangers which obviously are a must, you also have to put tension ties onto the joists, drill a hole through the ledger and then put tension ties onto the joists inside the house. Then you run a bolt through the ledger and into both tension ties. This does not have to be done to every joist. Every four feet is good enough. Your deck will never come away from the house with tension ties. The hard part of doing this is making sure that your deck joists are in plane with the joists inside the house. Now, if your joists inside the house run perpendicular to those on the deck then you have to simply put tension ties on the deck and then through bolt through the ledge (and the rim joist of the house of course) and then tie the house to the ledger/deck that way. This is a very important step that a diyer would not know to do. These ties are also known as "lateral load ties"
@@rickcimino5483 Hi Rick, thanks for sharing your experience with tension ties. Sounds like a smart way to secure your deck to the structure of the home. Very interesting. Would love to do that in the future.
Generally screws have a higher tensile and shear strength. The two typically go hand and hand. Nails are used for shear walls because they are ductile, thus the won't break if flexed back and forth. If you plastically deform a screw it will break with very little deformation, that's why you can hit drywall screws with a hammer and break them off of a stud. Nails can be flexed multiple times and still retain most of their strength (this is called toughness in material science). It also doesn't have anything to do with the threads, its just a different alloy of steel or a different heat treatment...or both. Thanks for the info on the number of zinc dips never heard that before.
I am a rather new DIYer. I have a very small channel that I do for fun and I’m always look through TH-cam to find better ways to do things. It looks like you’ve got a very practical way of looking at things. I’m all signed up and looking forward to your next video!
Love that you are new to DIY! It’s an excellent teacher in self-reliance and you learn something new everyday. All good things start small! Congrats on your channel.
Hello Daru , I love your videos and once again , Screws are the best when fastening wood or fastening something to wood , You are very knowledgeable and take alot of pride in your work , Excellent contractors like yourself are really hard to find When it comes down to brass tacks You are a perfectionist , If you were in my area and needed a contractor for something , You're the only one I would pick because I know for sure the job will be done right
That’s kind of you Marty. I appreciate you taking the time to write. I try to learn as much as I can and improve as I go. I’m grateful to do this work and it’s thanks to people like you.
@@DaruDhillon You're most welcome , I love to give valuable tips to help a person out and look out for their safety Remember , There is no such thing as being too careful
Hex head screws are the best no stripping I’ve used TimberLOK for large pieces of treated wood. Great job with your instructions and A+ with the nostalgic style flannel. 💪🏻
Great video Daru, it cover lots. It would be super to get a short explanation about fasteners, treated woods, brackets and galvanic action that can make a real mess if not considered.
I've seen some tests done as far as comparing sheer strength between screws and nails. It doesn't matter that nails have more sheer strength than screws. When they put an assembly together with screws on one assembly and nails on another, he used a hydraulic press to put sheer forces on the assemblies to the point of failure. When you do this the fasteners do not sheer off, they never sheared off on any of the tests. What actually happens when they are tested to failure is the fasteners pull out of the wood about halfway and then bend over. On all of the tests the screws resisted failure better than the nails, because the nails would pull out easier. Even non-structural screws were outperforming the nails in the sheer force tests. So yes screws are better than nails, even though for many applications the nails are good enough. I use screws on almost everything now and have for close to 20 years. If you want to see some good tests on fasteners check out Project Farm TH-cam channel. That guy does really good controlled tests and does not take money merchandise from anyone.
Good to hear your perspective on this, thanks! The new structural screws have a special coating that makes them stronger than before. It’s good to see so much testing for safety with screws and nails.
There's a difference between sheer strength and shear strength. I could have the sheer strength to lift a beam with my bare hands, but not the shear strength to lift a beam with my bare hands.
You have excellent commentary, explanations and information on the DIY projects, I would make one virtually insignifigant suggestion when discussing tensile strength. Tensile strength is the measure of force required for the material (screw/nail) to yield or break when pulled or stretched. In wood framing, pull-out force would better describe the relationship between the nail/screw and the wood. The pull-out resistance of screws is greater, but the shear resistance of nails is better. In the end, I agree 100% on DIYers using screws instead of a nailgun for cost and safety. Really enjoyed your video.
Thanks! Appreciate the added insights on pull-out as it relates to wood. These are good points to know when working on your home and woodworking projects.
When extreme sheer forces are applied to a wooden structure the fasteners do not sheer off. What actually happens is the fasteners pull out about half way and then bend over. This happens with nails or screws, but the screws are much more resistant to pulling out. So in real world applications the superior shear strength of the nails is not really relevant. Project Farm TH-cam channel tested this pretty extensively and even the incorrect screws were outperforming the nails. Wood cannot hold any fastener well enough for the fasteners to actually sheer off, they pull out first and then bend over. He used hydraulics and a really good and expensive scale to test this. How well the threads were able to grip the wood was more important than the sheer strength of the screws in those tests.
Good video especially for the novice DIYer. Some comments though. * Galvanizing is most commonly electro galvanizing, not hot dipped on such hangers. HD would be better but is more expensive. Most hangers are not dipped (in zinc) but are plated in an aqueous solution. You are building a deck here. You should mention that using hangers that are good for treated lumber would require use of something good for that, (LU or in the extreme, SS). Cheap hangers like the one you show were likely destroyed by the chemicals on the lumber. * It sounds like the nails “break” in the tensile test, they don’t break, they just pull out, so the bond fails. * Screws are great, especially for DIYers, (they snug things up better, they are removable, they are faster to apply for novices. But, you have to use the RIGHT screws. SDS screws are what you are using, and are correct, but you should let people know that lots of cheap screws are hardened and are too brittle. I use Screws in LOTS of construction, with Hex washer, or modified truss heads or similar, then you can really pull parts together. But most common screws are too brittle, (Try bending a sheet rock screw) so they are not as strong. You would do a service to describe what to use. You use SDS hex washer screws and they are great. Using them means that they can always be removed easily too. Philips head can’t and often the slots get destroyed, by incorrect driving, (or incorrect bit size) Torx is another good one. * You are right to use the 2 1/2” screw in the hanger on the sides for the X, but on the legs? In a 4x, sure, but in a 2x? Much of the threads (1” of them” are past the ledger, and not doing you any good. Actually these would be weaker than the 1 1/2” screws which wouldn’t get loose under tension.
i've only ever seen builders use screws for attaching the joist hanger to the BACK (joist rim), and nails for attaching the hangers to the joists themselves. the explanation was that the screws keep the hanger from being pulled out (due to the threads gripping the wood) and the nails are plunged in at an angle, meaning they will be hard to separate just by pulling. If you were to nail the hanger to the outside wall, it could easily be pulled out over time, as the nails loosen from wear.
Cool and informative video. I understand as a woman them metal fastener guns can get heavy and probably to expensive for a home owner. As for a contractor them metal fastener guns are the way to go
For old dry wood its often best to drill a pilot hole to prevent splitting. That takes more time, and admittedly is a lost art. Before the modern screws when putting in wood screws we always drilled pilot holes (in fact you had a pilot hole for the screw shank area, a larger drill bit area for the unthreaded portion, and perhaps a countersunk head bit - sold as an "all in one" bit). I was using old fashion wood screws on a project a few weeks ago, and am going to do a window repair with them next week. Its the only real method for countersunk heads.
Great info. Slight correction, misspoke..? 7:40 You said ‘no connection’ because they didn’t used to make the plates. But screws and/or nails have always been used to make those connections, whether you live in hurricane country or not. If you discover your builder hasn’t, I’d inspect everything. Btw- Even older brittle lumber can usually be fastened using pilot holes.
I love your videos,u provided very clear and step by step instructions .can u please make video how to replace or install ceiling fan and 3 light switch please? Thanks
What about sherardized nails - helps deal with tensile strength. Also those first couple of screws around 6:30 - most of the screw part is through the joist. Seems too long to me. The 45 deg is correct - but not at 90. You used shorter ones on the hurricane tie.
galvanised roofing nails for attaching hanger is fine . now there are better fasteners but construcion screws are OK I used for many years without fail
At 5:52: , wouldn’t a hole in the bottom face of the hanger that could be used to fasten it to the bottom edge of the joist be useful? You’d automatically fit the hanger tight to the bottom of the joist.
I prefer screws if I’m doing my own work. It makes it easier to change things and get into tight spaces. I’d use a nail gun if I had one of the milwaukee ones, but it’s not my profession these days.
Appreciate you taking the time to let us know what you like. A lot of people like using screws for the same reason as you. I find it easy also. Thanks!
I just have one question. I understand the 2 1/2 inch screws for the angle, but I don’t know why screws for the other holes? The reason why I ask, because the last part ,of the shaft of the screw is smooth, and it doesn’t seem like it has enough threads to bit into single ledger board that’s only 1 1/2 wide. Why not use a 1 1/4 screw for those holes? It’ll be cheaper on the screws, and it should hold a lot better.
Yes, she should have used the 1 1/2 for the ledger side, just as she did for the hurricane clips. The exception is if the ledger is a double 2x10 or like, because the 2 1/2 screws will pull the double 2x10 (or similar) together. Oddly, her hurricane clips were on a double 2x10 and she could have used the 2 1/2 there. (There are no common 1 1/4 authorized screws to my knowledge. 1 1/2 is the trade standard Strong Tie.)
You could use the 2 1/2" screws on the hurricane clips but I'm following the manufacturer's recommendations in this video. The two 2x10 beams have a gap in them right now that I'll be fixing in a later video. They need to be clamped together for a new post install. Your suggestion is good. Thanks!
wise old carpenter taught me - never drive a nail in straight. always at an angle and every other one invert the angle. it changes the pull and shear factors making a stronger joint
I prefer to use a combination of both. However, because I don’t buy material, most people use the nails because they’re cheaper. I think it’s a good idea to have a box of screws around, for those articles spaces when you can’t swing your hammer. Plus you have my favourite Milwaukee impact driver. I have the M12 and M18 I love the fact that it doesn’t notice much noise.
I use screws as I’m usually working in confined spaces with no room to swing a hammer. Plus an assembly can be taken apart to correct a mistake or make an adjustment.
Yup , back in the 70s you could fix anything with WD40 and electrical tape. Then it went on that all you needed was duct tape and WD40, then to the red Tuck tape and WD40. Now that I've discovered the blue Tuck tape (and of course still use WD40), I'm planning a DIY shuttle to the moon! Joking aside, duct tape did save me as a student when the car radiator hose split while driving, had it in the trunk, taped it up, and just drove home without any leak. Ah....tape , such a wonderful invention. 🙂
You forgot to mention the most important part about choosing the correct joist hanger. If it’s used outdoors on pressure treated lumber the last part of the hanger number is “-TZ”. In the cast of your video it would be a JUS 210-TZ. The TZ stands for triple sink.
Screws are not designed for or be used for shear loads . A screw will break under load a nail will bend and draw under shear loading it will not break .
Just a minor point, these hangers are electroplated, not dipped, which is far less superior to HDG simpson products which are hot dipped galvanized (HDG). They don’t make the hangers in HDG for several reasons. Look at your outdoor beam connectors and you will see the difference in HDG which is much better. Live in a coastal environment, go with stainless because even those hanger you used will corrode over time. Yes I know stainless is more expensive!!!!!
Wow, never considered tensile vs sheer strength. Seems screws have received such a bad rap for so long I just assumed the appropriate sized nails were better, all around. Interesting content while getting to watch the most beautiful woman on the face of the earth. Win Win.
Nails are an excellent choice absolutely. Structural screws have come along way and have a special coating on them that makes them stronger. Thanks! Great to hear from you. Same to you!
Thanks. Tie up your hair when using a drill. All you have to do is bend over while drilling or screwing and when your hair catches, the drill will go right to your head. Happened to me. Just cut my ear.
You made a pretty big mistake installing the joist hangers. In your application the screws going directly into the ledger board through the tabs should have been 1 1/2 not 2 1/2. The ledger board is only 1 1/2 inch thick and has nothing behind it. Beyond being a hazard for snags ect the majority of the threads are beyond the ledger board compromising tensile strength. In this application using the 1 1/2 inch screws would be stronger since all the threads are actually in the ledger board. Even if built on a wood framed wall the 2 1/2 would actually put the thread into the sheathing unless you hit a stud reducing tensile strength. Both screws actually have the same amount of threads. So for toe screwing and screwing into a double 2x the 2 1/2 would be stronger. But into a single 2x the 1 1/2 is stronger.
@@michaelcsonka2675 thanks for sharing your experience. You’re spot on if you only have a 1 1/2” ledger without wood behind it to tie into the shorter screws are best in that application. Appreciate you sharing your thoughts. Important to know. Thanks
This woman bless her heart for trying in a mans world but she it totally wrong immediately when she says tensile strength is the reason to use screws. WRONG ! The reason in RETENTION strength. The screws HOLD better. No major harm caused and give her a chip for trying and doing a pretty good job for a woman.
@@scottperkins3696 When screw retention tests are performed the screw will undergo a Tensile test applying force in one direction. Usually pulling on the screw from south to north. Tensile is applied to determine the retention strength.
Screws are hard and brittle. They fail catastrophically. Nails are more ductile and forgiving. I generally use screws, but in my heart of hearts, when I look at how well nails hold up after a few hundred years of houses shifting and shaking, I know I probably should be using nails.
Have you ever tried to pull apart anything that's been screwed together, the wood will fail before the screws fail. So if you want all the advantages screws have to offer, go ahead and use them , although you definitely want to use structural screws.
My Dormers on my house we're all pulling apart with nails, I replaced them with screws much better now. If you're going to use Nails you need to know how to reverse toenail to hold, or simply use a screw pull it up nice and tight.
I have never seen anything fail furthermore catastrophically that were put together with screws, although I've seen plenty of things pull apart with nails. When you bench test nails and screws yes the nails will outperform screws other than pull out but like I said when use the screws the wood Will split apart before the screws shear. I have personally screwed together many buildings Framing and trim with excellent results. Over the course of my 50 years of building no call backs just to come do more work. Could you show me something that you're talking about that has failed catastrophically, from the use of structural screws.
@@kevindavidsaver5370 intimate experience with four apartment buildings over one hundred years ago thirty years old, with various stages of repairs using every kind of fastener you can think of. Pull out is where poorly applied nails are weak, but the bigger issue in (European brick) buildings is settling. The forces are enormous. Screws form such powerful bonds, but as said are brittle, that when the thousands of tonnes of one part of a building settles a mm, screws can simply tend to snap rather than deflect. I'm happy you haven't had this experience - as always, the details matter. I guess you're used to match stick houses?
As a former code inspector this is really a great video for the novice
That means a lot. Thanks!
Your information delivery is a great pace, packed with information yet easy to understand and no filler. Great video.
Glad it was helpful! Thanks
Being slightly (very slight, I have 7 sisters) sexist about things like construction, I was very impressed. Not only do you know what you are talking about you are a natural teacher and very concise with the information presented. (you have a new fan)
Thanks Paul, all the best!
Built a large deck during Covid in our yard. Used nails of the correct size and length because they were cheaper than screws. Since I also had a lot of toe nailing to do. I bought a pneumatic palm nailer which made driving all those nails easy. Thanks for the video!
@@dt76sf Thanks for sharing your experience building your own deck. It’s always good to know what tools you like to use and why!
Whoever invented the palm nailer should receive the Nobel Peace Prize. That thing saves a ton of cursing and homicidal thoughts.
I'm a big advocate of using stainless steel hardware on the latest pressure treated lumber, as it is still quite corrosive on double dipped galvanized screws and nails. I was looking at a church ramp the other day that I built only 2 years ago. The galvanized joist hangers have already begun to corrode. It hasn't helped that a lot of salt is applied to the ramp during the winter months.
Good info 👍. The 45 deg holes are an improvement over the hangers from 30 years ago, those ones you used 1 1/2 in nails straight in. Hurricane ties are way better than toenailing joists, rafters, trusses. The screws make installing easier in tight spots.
Appreciate you sharing your thoughts on screws and the hangers. It’s interesting how much things have improved over the years. Yes, the 45 degree holes are well thought out and make things so much easier. Love the simple improvements. Thanks!
As a software engineer working at a national science research center, the reason I enjoy DIY home improvement construction so much is that it involves Material Science, often called common (construction) sense.
Good to hear from you Donald, thanks!
Daru, I thoroughly enjoyed your super informative video on the proper use of joist hangers; proper screws; and hurricane ties!
Well done!
Thank-you Robert! I’m happy you found the installation and info helpful.
TH-cam recommended this channel to me and I LOVE it!!! Thank you for the great educational content!!!
Glad you enjoy it! Thanks, love that TH-cam recommendation.
i am glad you did this video, just had a discussion with my stepson about the difference. He and his buddy swear to using screws on everything and i told them absolutely not. I was telling him that screwing in floor joist is the worst thing cause you dont have shear strength.. pulling items together is fine like you said but screws snap and especially if he isnt using the right screw they will snap. I told him to use the screw to bring the wood together and throw some nails in it as well. he won't listen but i tried to tell him. So many people don't use the correct materials and then wonder why it failed. Good job explaining this. Have a great day....
I always like to hear what works for you. It’s good to know and share. Appreciate your take on installing joists. Like you say it’s good to know these things when you build.
Things change also. I’m sure nails use to be stronger than screws.
This is an awesome video for deck building. Why hasn't Simpson hired this person to do their video. After having read a number of books, online research from mfr to IRC Code. No one has provided this level of detail. Clear, concise, and to the point. No pun intended.
@@westdr1dw4 Thanks I’m glad you found it helpful!
@@DaruDhillon No Ma'am, thank you.
Thank you for a really excellent discussion of the holding power of screws versus that of nails. I agree screws are much stronger. I had heard of hurricane ties in the past, but I've never seen them. Thank you for demonstrating their placement and use.
Thanks Robert it’s good to hear from you. I appreciate you taking the time to let me know.
Great info - really good idea to wear safety glasses anytime working overhead or anytime using power tools in general - It only takes one flying splinter or metal shard to create an eye emergency
Absolutely Greg good to hear form you!
WOW! I learned so many terms and ways of doing joist hanger. Thanks Daru.
Glad it was helpful!
There are many of deck builders out there that need an education on this subject.
@@phillipmatthews8341 There is a lot to learn out there. I’m learning every day too.
I would humbly suggest to you and your followers that in addition to joist hangers which obviously are a must, you also have to put tension ties onto the joists, drill a hole through the ledger and then put tension ties onto the joists inside the house. Then you run a bolt through the ledger and into both tension ties. This does not have to be done to every joist. Every four feet is good enough. Your deck will never come away from the house with tension ties. The hard part of doing this is making sure that your deck joists are in plane with the joists inside the house. Now, if your joists inside the house run perpendicular to those on the deck then you have to simply put tension ties on the deck and then through bolt through the ledge (and the rim joist of the house of course) and then tie the house to the ledger/deck that way. This is a very important step that a diyer would not know to do. These ties are also known as "lateral load ties"
@@rickcimino5483 Hi Rick, thanks for sharing your experience with tension ties. Sounds like a smart way to secure your deck to the structure of the home. Very interesting. Would love to do that in the future.
Generally screws have a higher tensile and shear strength. The two typically go hand and hand. Nails are used for shear walls because they are ductile, thus the won't break if flexed back and forth. If you plastically deform a screw it will break with very little deformation, that's why you can hit drywall screws with a hammer and break them off of a stud. Nails can be flexed multiple times and still retain most of their strength (this is called toughness in material science). It also doesn't have anything to do with the threads, its just a different alloy of steel or a different heat treatment...or both. Thanks for the info on the number of zinc dips never heard that before.
Good to hear your feeling on this. Thanks
Looking good! I believe I had to use triple galvanized zinc brackets for pressure treated lumber for a lean-to.
No kidding! Good protection you got there David.
I am a rather new DIYer. I have a very small channel that I do for fun and I’m always look through TH-cam to find better ways to do things. It looks like you’ve got a very practical way of looking at things. I’m all signed up and looking forward to your next video!
Love that you are new to DIY! It’s an excellent teacher in self-reliance and you learn something new everyday. All good things start small! Congrats on your channel.
You’re a great teacher. Looking forward to more.
Thank-you!
❤your work and explanations Daru darlin' 😊
Thank you so much 🙂
Hello Daru , I love your videos and once again , Screws are the best when fastening wood or fastening something to wood , You are very knowledgeable and take alot of pride in your work , Excellent contractors like yourself are really hard to find
When it comes down to brass tacks
You are a perfectionist , If you were in my area and needed a contractor for something , You're the only one I would pick because I know for sure the job will be done right
That’s kind of you Marty. I appreciate you taking the time to write. I try to learn as much as I can and improve as I go. I’m grateful to do this work and it’s thanks to people like you.
@@DaruDhillon You're most welcome , I love to give valuable tips to help a person out and look out for their safety
Remember , There is no such thing as being too careful
Hex head screws are the best no stripping I’ve used TimberLOK for large pieces of treated wood. Great job with your instructions and A+ with the nostalgic style flannel. 💪🏻
Hey, thanks for sharing what fasteners you like to use. I always find that interesting what you like to use. I like them too. Thanks!
Great video Daru, it cover lots. It would be super to get a short explanation about fasteners, treated woods, brackets and galvanic action that can make a real mess if not considered.
Thanks, avoiding the mess is important to consider. All the best!
I've seen some tests done as far as comparing sheer strength between screws and nails. It doesn't matter that nails have more sheer strength than screws.
When they put an assembly together with screws on one assembly and nails on another, he used a hydraulic press to put sheer forces on the assemblies to the point of failure. When you do this the fasteners do not sheer off, they never sheared off on any of the tests.
What actually happens when they are tested to failure is the fasteners pull out of the wood about halfway and then bend over.
On all of the tests the screws resisted failure better than the nails, because the nails would pull out easier. Even non-structural screws were outperforming the nails in the sheer force tests. So yes screws are better than nails, even though for many applications the nails are good enough.
I use screws on almost everything now and have for close to 20 years. If you want to see some good tests on fasteners check out Project Farm TH-cam channel. That guy does really good controlled tests and does not take money merchandise from anyone.
Good to hear your perspective on this, thanks! The new structural screws have a special coating that makes them stronger than before. It’s good to see so much testing for safety with screws and nails.
There's a difference between sheer strength and shear strength.
I could have the sheer strength to lift a beam with my bare hands, but not the shear strength to lift a beam with my bare hands.
great information and easy-to-watch
Thanks!
You have excellent commentary, explanations and information on the DIY projects, I would make one virtually insignifigant suggestion when discussing tensile strength. Tensile strength is the measure of force required for the material (screw/nail) to yield or break when pulled or stretched. In wood framing, pull-out force would better describe the relationship between the nail/screw and the wood. The pull-out resistance of screws is greater, but the shear resistance of nails is better. In the end, I agree 100% on DIYers using screws instead of a nailgun for cost and safety.
Really enjoyed your video.
Thanks! Appreciate the added insights on pull-out as it relates to wood. These are good points to know when working on your home and woodworking projects.
When extreme sheer forces are applied to a wooden structure the fasteners do not sheer off. What actually happens is the fasteners pull out about half way and then bend over.
This happens with nails or screws, but the screws are much more resistant to pulling out. So in real world applications the superior shear strength of the nails is not really relevant.
Project Farm TH-cam channel tested this pretty extensively and even the incorrect screws were outperforming the nails. Wood cannot hold any fastener well enough for the fasteners to actually sheer off, they pull out first and then bend over.
He used hydraulics and a really good and expensive scale to test this. How well the threads were able to grip the wood was more important than the sheer strength of the screws in those tests.
Good video especially for the novice DIYer. Some comments though.
* Galvanizing is most commonly electro galvanizing, not hot dipped on such hangers. HD would be better but is more expensive. Most hangers are not dipped (in zinc) but are plated in an aqueous solution. You are building a deck here. You should mention that using hangers that are good for treated lumber would require use of something good for that, (LU or in the extreme, SS). Cheap hangers like the one you show were likely destroyed by the chemicals on the lumber.
* It sounds like the nails “break” in the tensile test, they don’t break, they just pull out, so the bond fails.
* Screws are great, especially for DIYers, (they snug things up better, they are removable, they are faster to apply for novices. But, you have to use the RIGHT screws. SDS screws are what you are using, and are correct, but you should let people know that lots of cheap screws are hardened and are too brittle. I use Screws in LOTS of construction, with Hex washer, or modified truss heads or similar, then you can really pull parts together. But most common screws are too brittle, (Try bending a sheet rock screw) so they are not as strong. You would do a service to describe what to use. You use SDS hex washer screws and they are great. Using them means that they can always be removed easily too. Philips head can’t and often the slots get destroyed, by incorrect driving, (or incorrect bit size) Torx is another good one.
* You are right to use the 2 1/2” screw in the hanger on the sides for the X, but on the legs? In a 4x, sure, but in a 2x? Much of the threads (1” of them” are past the ledger, and not doing you any good. Actually these would be weaker than the 1 1/2” screws which wouldn’t get loose under tension.
Thanks for sharing your thoughts on hangers and fasteners with us Paul!
I agree, you know what you are talking about.
Clear and simple explanation. Subscribed.
@@ZeeFrankensteel Thanks! Welcome.
i've only ever seen builders use screws for attaching the joist hanger to the BACK (joist rim), and nails for attaching the hangers to the joists themselves.
the explanation was that the screws keep the hanger from being pulled out (due to the threads gripping the wood) and the nails are plunged in at an angle, meaning they will be hard to separate just by pulling. If you were to nail the hanger to the outside wall, it could easily be pulled out over time, as the nails loosen from wear.
Good to hear your take on the differences between the two. Thanks
Awesome thanks for explaining the principles the concepts and the demonstration
Glad it was helpful!
Considering the weight of a big joist, and the load it has to be capable of carrying…I am amazed how weedy thin metal joist hangers are.
@@contessa.adella yes! That’s a good observation. They are thin but strong.
Cool and informative video. I understand as a woman them metal fastener guns can get heavy and probably to expensive for a home owner. As for a contractor them metal fastener guns are the way to go
They are a critical tool for sure. Appreciate you sharing your experience. Thanks!
For old dry wood its often best to drill a pilot hole to prevent splitting. That takes more time, and admittedly is a lost art. Before the modern screws when putting in wood screws we always drilled pilot holes (in fact you had a pilot hole for the screw shank area, a larger drill bit area for the unthreaded portion, and perhaps a countersunk head bit - sold as an "all in one" bit).
I was using old fashion wood screws on a project a few weeks ago, and am going to do a window repair with them next week. Its the only real method for countersunk heads.
Hi Perry, I appreciate you sharing what you like to do with old wood. Pilot holes work like a charm. Thanks!
Great info. Slight correction, misspoke..? 7:40 You said ‘no connection’ because they didn’t used to make the plates. But screws and/or nails have always been used to make those connections, whether you live in hurricane country or not.
If you discover your builder hasn’t, I’d inspect everything.
Btw- Even older brittle lumber can usually be fastened using pilot holes.
@@markoshun thanks Mark for sharing your insights.
I love your videos,u provided very clear and step by step instructions .can u please make video how to replace or install ceiling fan and 3 light switch please? Thanks
Hi Brian, thanks I'll keep that in mind for the future!
Outstanding tutorial!
Thanks! Glad you enjoyed it.
What about sherardized nails - helps deal with tensile strength.
Also those first couple of screws around 6:30 - most of the screw part is through the joist. Seems too long to me. The 45 deg is correct - but not at 90. You used shorter ones on the hurricane tie.
Yes you're correct! You can go with 1 1/2" depending on what you're screwing into.
A woman who knows the tools of her trade and just happens to look like a VS supermodel.
Excellent!!!
Thanks Philly!
She is terrific. A big help.
galvanised roofing nails for attaching hanger is fine . now there are better fasteners but construcion screws are OK I used for many years without fail
@@shannonflood2303 Good to hear from you!
The knowledge, the makeup 💄💋, the red plaid shirt. Oh crap, that's right, I'm married. Dammit Man, never mind.❤
why not predrill on dry joist to prevent splitting, it may slow down, but will have better results
@@swllz you could do that if you’d like. Thanks for sharing your take!
At 5:52: , wouldn’t a hole in the bottom face of the hanger that could be used to fasten it to the bottom edge of the joist be useful? You’d automatically fit the hanger tight to the bottom of the joist.
Very helpful, thank you 👏🇨🇦
@@IamACanadian47 Thank-you! I loved those commercials 🇨🇦
I prefer screws if I’m doing my own work. It makes it easier to change things and get into tight spaces. I’d use a nail gun if I had one of the milwaukee ones, but it’s not my profession these days.
Appreciate you taking the time to let us know what you like. A lot of people like using screws for the same reason as you. I find it easy also. Thanks!
I just have one question.
I understand the 2 1/2 inch screws for the angle, but I don’t know why screws for the other holes?
The reason why I ask, because the last part ,of the shaft of the screw is smooth, and it doesn’t seem like it has enough threads to bit into single ledger board that’s only 1 1/2 wide. Why not use a 1 1/4 screw for those holes?
It’ll be cheaper on the screws, and it should hold a lot better.
Yes, she should have used the 1 1/2 for the ledger side, just as she did for the hurricane clips. The exception is if the ledger is a double 2x10 or like, because the 2 1/2 screws will pull the double 2x10 (or similar) together. Oddly, her hurricane clips were on a double 2x10 and she could have used the 2 1/2 there. (There are no common 1 1/4 authorized screws to my knowledge. 1 1/2 is the trade standard Strong Tie.)
You could use the 2 1/2" screws on the hurricane clips but I'm following the manufacturer's recommendations in this video. The two 2x10 beams have a gap in them right now that I'll be fixing in a later video. They need to be clamped together for a new post install. Your suggestion is good. Thanks!
very educational
wise old carpenter taught me - never drive a nail in straight. always at an angle and every other one invert the angle. it changes the pull and shear factors making a stronger joint
Thanks for that Richard. Love hearing your thoughts!
Nails and screws are both excellent and approved fasteners for joist hangers. Have a favorite? Let us know what you like using in the comments!
Daru this is such a great educational video. I'm glad I subscribed, this new type of construction educational content is really appreciated
I prefer to use a combination of both.
However, because I don’t buy material, most people use the nails because they’re cheaper.
I think it’s a good idea to have a box of screws around, for those articles spaces when you can’t swing your hammer.
Plus you have my favourite Milwaukee impact driver. I have the M12 and M18 I love the fact that it doesn’t notice much noise.
Great video. I would pre-drill the dry lumber, if I’m dropping longer screws into dry lumber. Ads some time, but won’t split the timber
I use screws as I’m usually working in confined spaces with no room to swing a hammer. Plus an assembly can be taken apart to correct a mistake or make an adjustment.
I prefer to dip twice, yes.
Oh yeah. Subscribed
Hi, thanks!
Joist hangers are too expensive. I just use duck tape and hot glue.
I think he deserves a TV show for that. I’d watch!
I think that was the Red Green show
Yup , back in the 70s you could fix anything with WD40 and electrical tape. Then it went on that all you needed was duct tape and WD40, then to the red Tuck tape and WD40. Now that I've discovered the blue Tuck tape (and of course still use WD40), I'm planning a DIY shuttle to the moon! Joking aside, duct tape did save me as a student when the car radiator hose split while driving, had it in the trunk, taped it up, and just drove home without any leak. Ah....tape , such a wonderful invention. 🙂
I use gravity to my advantage. Whatever that means.
Just drill a 1/16th hole and use a toothpick you can steal from just about anywhere to pin the joist to the rimjoist
Malleable or brittle ? What dynamic forces are at play?
They should have a hole in the bottom of the joist hanger so you can screw it to the joist first so it stays tight while you’re hanging it.
You forgot to mention the most important part about choosing the correct joist hanger. If it’s used outdoors on pressure treated lumber the last part of the hanger number is “-TZ”. In the cast of your video it would be a JUS 210-TZ. The TZ stands for triple sink.
Thanks for adding value with your comment! Good tip to keep in mind.
I use library paste and a LOT of thumbtacks.
@@Vixtorz genius! I’ll keep that in mind for next time.
Tensile strength? What about tinsel strength? They don't make tinsel like they used to
True. I see tinsel making a comeback. It's strength is underrated.
@@DaruDhillon :0) lol
@@timbarry5080 you made me laugh. Thanks for that
@@DaruDhillon my pleasure ☺
I never knew they came in different sizes.
It’s good to know you have options!
Aren’t the 2.5” screws too long to go into the flat part of the joist hanger that attaches to the 2 by ledger board?
@@pthalkiades You should use the shorter ones for that part.
Gloves but no eye protection. Personally I would opt for eye protection over gloves in this situation.
@@samfredo8140 always a good idea Sam. Thanks!
I would still spray them with Rust-Oleum if there in the weather.
Thanks for sharing your advice!
Screws are not designed for or be used for shear loads . A screw will break under load a nail will bend and draw under shear loading it will not break .
Yes, that’s an important advantage of nails and good to remember. Thanks for sharing your experience with us!
Just a minor point, these hangers are electroplated, not dipped, which is far less superior to HDG simpson products which are hot dipped galvanized (HDG). They don’t make the hangers in HDG for several reasons. Look at your outdoor beam connectors and you will see the difference in HDG which is much better. Live in a coastal environment, go with stainless because even those hanger you used will corrode over time. Yes I know stainless is more expensive!!!!!
Good point Jerry. Thanks! We’re got some SS fans around here.
Wow, never considered tensile vs sheer strength. Seems screws have received such a bad rap for so long I just assumed the appropriate sized nails were better, all around. Interesting content while getting to watch the most beautiful woman on the face of the earth. Win Win.
Nails are an excellent choice absolutely. Structural screws have come along way and have a special coating on them that makes them stronger. Thanks! Great to hear from you. Same to you!
😍
I used nothing but hangers and screws on my decks; I parked my tractor on the deck to confirm strength.
Nailing, screwing, it's all just fastenating to me...
I see what you did there! Yes
It's shear strength juoist nails
Thanks. Tie up your hair when using a drill. All you have to do is bend over while drilling or screwing and when your hair catches, the drill will go right to your head. Happened to me. Just cut my ear.
@@pcatful glad you are ok. Appreciate the feedback. Thank-you.
Also be sure to wear tight-fitting clothing. 😇
You made a pretty big mistake installing the joist hangers. In your application the screws going directly into the ledger board through the tabs should have been 1 1/2 not 2 1/2. The ledger board is only 1 1/2 inch thick and has nothing behind it. Beyond being a hazard for snags ect the majority of the threads are beyond the ledger board compromising tensile strength. In this application using the 1 1/2 inch screws would be stronger since all the threads are actually in the ledger board. Even if built on a wood framed wall the 2 1/2 would actually put the thread into the sheathing unless you hit a stud reducing tensile strength. Both screws actually have the same amount of threads. So for toe screwing and screwing into a double 2x the 2 1/2 would be stronger. But into a single 2x the 1 1/2 is stronger.
@@michaelcsonka2675 thanks for sharing your experience. You’re spot on if you only have a 1 1/2” ledger without wood behind it to tie into the shorter screws are best in that application. Appreciate you sharing your thoughts. Important to know. Thanks
Screws, brittle nails 1,600 lbs of shear.
Good to hear from you Jack
@@DaruDhillon good to hear from you
You don't have to convince me to use screws
When "construction" people have clean gloves you ignore them
@@NovaDexter These are my “black-tie” gloves. When I’m feeling fancy!
Where's the love for stainless steel ? Crazy expensive but even better than galvanized for corrosion it will probably outlast the wood
Yes, indeed! Long lasting but bigger price tag.
A sexy woman that knows tools and building. Cant get any better than that.
Screws are always better than nails, but nails are far cheaper and faster to install in cookie cutter construction.
This woman bless her heart for trying in a mans world but she it totally wrong immediately when she says tensile strength is the reason to use screws. WRONG ! The reason in RETENTION strength. The screws HOLD better. No major harm caused and give her a chip for trying and doing a pretty good job for a woman.
@@scottperkins3696 When screw retention tests are performed the screw will undergo a Tensile test applying force in one direction. Usually pulling on the screw from south to north. Tensile is applied to determine the retention strength.
Screws are hard and brittle. They fail catastrophically. Nails are more ductile and forgiving. I generally use screws, but in my heart of hearts, when I look at how well nails hold up after a few hundred years of houses shifting and shaking, I know I probably should be using nails.
Have you ever tried to pull apart anything that's been screwed together, the wood will fail before the screws fail. So if you want all the advantages screws have to offer, go ahead and use them , although you definitely want to use structural screws.
My Dormers on my house we're all pulling apart with nails, I replaced them with screws much better now. If you're going to use Nails you need to know how to reverse toenail to hold, or simply use a screw pull it up nice and tight.
I have never seen anything fail furthermore catastrophically that were put together with screws, although I've seen plenty of things pull apart with nails. When you bench test nails and screws yes the nails will outperform screws other than pull out but like I said when use the screws the wood Will split apart before the screws shear. I have personally screwed together many buildings Framing and trim with excellent results. Over the course of my 50 years of building no call backs just to come do more work. Could you show me something that you're talking about that has failed catastrophically, from the use of structural screws.
@@kevindavidsaver5370 intimate experience with four apartment buildings over one hundred years ago thirty years old, with various stages of repairs using every kind of fastener you can think of.
Pull out is where poorly applied nails are weak, but the bigger issue in (European brick) buildings is settling. The forces are enormous. Screws form such powerful bonds, but as said are brittle, that when the thousands of tonnes of one part of a building settles a mm, screws can simply tend to snap rather than deflect.
I'm happy you haven't had this experience - as always, the details matter. I guess you're used to match stick houses?
Great info and advice. You're so cute, you can work with me anytime.
Deal!
Screws are stronger and they do not pull out !!
Love hearing what works for you. Thanks!
I have been wanting a video about joist hangers, will you marry me?
God you're beautiful.
Are you married?❤
@@aolcb happily single 💕
Some interesting data here. far too much time watching the presenter with dancing hands.
@@sbeckwith7801 that’s a beautiful image. I love dancing! Thanks for that ❤️
Will you marry me?
❤️
And caulk