2 EASY Methods for Making Birdsmouth Cuts
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- เผยแพร่เมื่อ 19 ต.ค. 2024
- In this video I'll show you how to layout and cut the birdsmouth for roof rafters using two easy and simple methods!
Want to check out my favorite tools for laying out and cutting birdsmouth cuts? Check them out below!
Speed Square - amzn.to/45GnoHy
Framing Square - amzn.to/45Jyk7k
Circular Saw - amzn.to/401RVOZ
Links in the description may be affiliate links. If you purchase through them, I may receive a small commission at no additional cost to you.
![How To Make Common Rafters [Measure, Mark & Cut]](/img/n.gif)
God bless you brother. You know how many times my dad tried to show me that!!? Now he's with Jesus and I'm brainstorming trying to remember everything he taught me.
God bless you to! I'm glad I was able to help you recall something your dad taught you. I'm sorry for your loss.
@@ThouShaltDIYso if you are working with a 2x6 framing I’m assuming you would use 5.5 instead?
@@williammason8566 That is correct.
Should've been paying attention.
God bless you bro
For anyone who doesn't know. Just throwing this out there. If you are using a framing square make sure you are using the outside of both sides of the square or both insides of the square.
Use square stops like a real man
Yeah that should be a logical thing
Nice and simple explanation. Some people are trying to make rocket science out of the same thing you explained in a few minutes. Thank you.
You're very welcome my friend. I'm glad you found it helpful!
Brooooo! I wish i would of seen this video first. I've watched a bunch of videos and this is by far the best one. Thank you!
Thanks man! I'm glad you found it helpful.
I bet I have watched 20 other videos on this. Yours is the first one that has explained it so clearly that even I understand it. Great job
Thank you! I'm glad it was helpful.
The best explanation out of all these videos simple and straightforward
Thanks! I appreciate that.
@@ThouShaltDIY God bless you brother
Great explanation. This is the first video about bird mouth cuts that shows how to use the speed square (with the diamond) to mark the heel cut line. Thanks!
Sure thing. Glad you found it helpful!
Thank You Sir! You gave me the best explanation I have ever heard!
Your welcome! I'm glad you found it helpful.
🙋♀️You made it easier for me to understand then other channels
Thanks. Watching from Alberta Canada
Glad to hear you found the video helpful and thanks for watching!
Thank you so much for posting this. It’s very informative.
You're very welcome!
Very useful & math-free tip. Thanks for sharing.
Absolutely. I'm glad you found it helpful!
Brother, thank you so much! Sister wants a coop, and this made me feel so much more comfortable tackling that roof! Thabks a million!
Sure thing my friend. Glad it was helpful to you.
Great video
Quick and to the point
Great video thanks for sharing your experience and knowledge. God bless you and your family 🎉
Good stuff brother saved my headaches. I just got into carpentry and you're making me show 30 students a trick of the trade tomorrow
That's awesome man! I'm glad you found this helpful and that you're able to pass what you learned along to your students. Thanks for warching!
I will show you another trick.. Use a rater book by AJ Richers . this gives the length of the common and hip and valley rafters by the span of the building...This gives the length of the rafter by looking up the span of the building. Say you have a L shapped building one side is 24 ' the other 18' the 18 is hipped with a valley and the 24 is a gable... you deduct the with of the ridge say ' so you would look up 23' 10 1/2 inches from the common page that would give you the length from the ridge to the birdsmouth Start by cutting a plumb cut at the top or the part of the rafter that nails to the ridge. Measure the length of the rafter from the long point of the plumb cut down the top of the rafter to the birds mouth say 14' 7'' then draw another plumb mark from that point to get 3 1/2 ;; bearing slide a 2/4 scap down that plumb and when it first touches the bottom edge draw the birds mouth..Now go the the hip and valley you would look up the length of the common on the 18span after deducting the with of the ridge. and get the length of the common.. now the hip and valley are the same length. you take 18' minus the with of the common ridge and look up that length
under hip and valley that is the length of the hip and valley no shorting is needed. Now to cut the hip use 17 and 6 on the square. Notice the seat cut of the hip cannot slide all the way to the plate so you need to cut something out of the seat cut of the hip the plumb cut stays the same if you want to know more respond
Amen, thank you for your material. God bless!! ❤🙏🏾🤲🏾
Very clear and concise instructions and demo. Thank you!
Excellent video! You demonstrated this process so clearly and simply. Pace of demonstration and length was spot on!
A great instruction!
Thank you very much!
Thanks bro....this is the easiest method Ive seen so far....may God be with you .
You're welcome. May God be with you as well my friend!
Thank you for a great explanation. Help me understand it finally
You're very welcome. I'm glad you found it helpful!
Thank you for educating good information lm still learning everyday thank you and god bless
Thanks for the best explanation & method on cutting a bird's mouth.
You are the best teacher easy and simple!🎉
Clear concise, simple explanation. Thank you
Yes, this was very helpful. Short and concise. Thanks for taking the time to share this. God bless you, Miles.
You just saved me hundreds of dollars; thank you, Patrick.P
Sure thing!
*FINALLY* a SIMPLE explanation with various ways how to do the seat cut. Thank you! 👍
Excellent. Thanks very much. 3 and a 1/2 inches. Ok. Looks like a 2 by 8 which is what I am using for my rafters.
Thany you my man!!! Very well explained and very clear, and I was able to retain this information. Other videos I watched....not so much. Thank you for you channel
Your welcome my friend. Glad you found the video useful!
Simplicity at its finest thank you
You're welcome my friend. Glad you found it helpful!
Good deal you made that look very simple awesome job
1st off great video well done. 2nd if anyone is new to this or any kind of diy endeavors, the first 5 things you need every day on your person is a hammer a tape a speed Square a knife and a pencil or handful of pencils. If you do not have all of these then just do your best to provide support to the real men who already know this.
That was great and GOD Bless you too.
That was a great informative video - thanks for making it!
Glad it was helpful!
Thanks easy to understand.
That was simple and easiest way i have seen yet tks
You're very welcome my friend. Glad you found it helpful!
Double helpful. Thank you friend
Happy to help!
Great, easy to understand video ty
Well done thank you
You're very welcome. Glad you found it helpful.
Thank you brother very helpful
You're welcome!
Great video thanks for those tips!
Watch this video upside down if you’re still confused. Helped me for some reason
Awesome Thank you
You're welcome!
God bless you sir
Very well explained 👊🙏
Glad you think so!
Very well explained. 👍
Stay well, Joe Z
Cool! God bless!
Very helpful, hope you could do a gable roof. You are a good teacher.
thanks bro! God Bless
Thank you!
Your welcome!
i worked 20 years framing houses and guys that knew the Technique would do anything to keep you from Learning that part!! anyway now i know the Technique THANKS tO YOU !!! thanks for Sharing!!!
thank you
You're welcome
Thanks!
Sure thing!
Great video. Thx
simple explanation
Thanks so much
Nice, thanks.....
Good job😊
I like this good video
Thank you!
My man!
thanks
Sure thing!
"thank you"!!👍👍👍👍
Welcome!
I totally get it, but you actually marked a 7/12 pitch with the speed square. watch it and see.
Noticed that, threw me off
PSA, this will only work if your framing your roof on 2x4 walls without sheathing. I know that there's a dozen ways to skin a cat, but if you sheath your walls prior to framing the roof, you'll need to adjust your seat cut to the depth of the wall including the sheathing. So if you used zip systems r-6 panels for example, your seat cut needs to be 5in(3.5 +1.5 sheathing)
cool bro keep going
How far out do you cut after the heel cut ? And what angle do you cut the opposite side to line up ? I assume the same angle ?
For the common dummy like me, I'd tack the 2x4 (or 6) 2 1/2 inches higher than the ridge beam on the outside edge. Then tack the rafter to the side of the shed about 2 1/2 inches higher than the top of the sill plate. Now go make that straight down mark on the top edge and use a carpenter's square set so you can trace the bird's mouth. I have to put a roof on my shop so I'm gonna try my method first. Never said I was a pro and I was non existent at math and degrees
Damn Good 👍
Appreciate it!
Muy bueno
Cool man.. can the same approach be used to cut frames for stairs?
New at this. Probably a stupid question, sorry. Does the heel cut end up being the same as the end of the rafter? For example, if the end of a rafter is 27 deg , will the heel also be 27? Thanks.
nice
How do you find out what your pitch is? I am trying to create a lean to off my house and have no clue when it comes to all of this. I can build walls but never built a roof before haha.
If you need to find the pitch of your existing roof, check out this Short that I made:th-cam.com/users/shortseweoeGDg59A?feature=share
If you're trying to determine the pitch of the roof you're building for your lean-to, then thats up for you to decide. You can make it any pitch you want.
I'm gonna attempt to build a 24x32 patio. Im using 4x6 for top plates. What is sufficient for putting 3 of the 4x6 together using a lap joint? I'm trying to make one long 4x6. Thanks brotha!
If I were going to lap joint 4x6s I'd probably connect them with some 8" structural screws that connect to the post underneath. You could also attach some Simpson ornamental T-straps to enhance the look a little bit. Something like what's in the following link:
www.fastenersplus.com/products/simpson-apt6-ornamental-6x-t-strap-black-powder-coat-over-zmax?+Shopping+-+Simpson+Connectors+-+Outdoor+Accents&hsa_acc=3477180114&hsa_cam=751806861&hsa_grp=38338888014&hsa_ad=177252125236&hsa_src=g&hsa_tgt=pla-283282326138&hsa_kw=&hsa_mt=&hsa_net=adwords&hsa_ver=3&gad_source=1&gclid=Cj0KCQjwhtWvBhD9ARIsAOP0Goj4i9o8CTCFQgmQ2j6DFS8XKAk6jJ9a0XBewUNV0IOFQ8vdvKzp9e4aAq7MEALw_wcB
No entiendo nada de inglés pero aprendí gracias amigo ajajja
How do you work out the pitch even before building? Or how do you find it after you finish the walls if you have no preferences and just need it to fit
search- scribe a birdsmouth. no measurement needed, just a speed square for 3 lines
Is that 3.5 in seat cut the same on a 2x4 rafter ?
If I’m using ceiling joist can I reduce my seat to 2” and use rafter tie screws in the ceiling joist instead of rafters?
I have a question. The cut you made is for sitting on top plate ( 3 1/2" ) section or whatever size top plate is. Can a birdsmouth be done if it's not sitting on a top plate? For example I'm building a lean to carport and have 2×6's on the run and are sitting with 1 1/2" section sitting upright.
Jus learn something new bro thanks
❤❤it😊😊😊
What if we want a bigger birds mouth? Should i just it deeper? Would it affect the top?
Almost all habitable structures have 2x6 studs, so the 3 1/2 diamond is hardly used anymore. Just slide the square down to 5 1/2.
I'm making a shed and my top plate is 59 inches wide from corner to corner. How do I know or figure what pitch my roof or rafters are going to be???
If the seat cut must be longer for the plate, a 2 by 6, do you repeat the procedure but adjust from 3 1/2 half to 5 1/2?
Yes, that is correct. I should've mentioned that in the video.
@@ThouShaltDIY thanks
@@danstark462 no you do not. Your seat cut is wholly dependent on numerous factors. Over cutting your rafter will get you recutting the whole roof
Why did you do 3 1/2 inches with the framing Square?
Because that's the width of a common 2x4 top plate. The diamond mark on the speed square is at 3 1/2" and I was showing that the same thing can be achieved with a framing square.
I use a alpha winkel. With a scala of deegree. Easier.plumb line and easy scale
When you say 6 12 pitch, does that mean that you drop 6 inches for every 12 inchs of rafter length?
I don’t understand where you get the pivot point from when flipping the square to line up the seat cut with the diamond
Based on what I think you're asking... The "pivot point" is built into the speed square. It's the corner you hold against the board to find an angle and is labeled as pivot point.
@@aloseman yes sir I understand that. It’s hard to articulate what I’m trying to ask. I mean, you could use any point of reference to place that pivot point on.. you could go an inch out with a lesser angle, or three inches out with a greater angle. I don’t understand where the point of reference comes from with this method
Why don’t you allow for the 1/2” sheathing?
I need help in the calculation. My span is 19’ 7 3/4” and the roof pitch is 7 3/4. What is the length?
Most exterior walls that will seat a rafter, these days, is a 2x6 wall.. full seat is 5 1/2.. I think they do it different everywhere.. In fact, I have worked on some commercial sites where different groups of guys will do it different within the same job.. Chaos!
If you do pre-drilling for screws there is less splitting of the wood. 😮
Why the 3.5" mark on the framing square? If the pitch is different from a 6/12 how would I know what mark to use for the second line?
The 3.5" cutout accounts for the width of a 2x4 top plate. If you're framing walls with 2x4 material this method will work regardless of the pitch of your roof.
@@ThouShaltDIY Thank you. I understand now.
@@EliseandDanchannel You're welcome!
@@ThouShaltDIY So, if I'm using 2x6's for framing, my second mark would be 5.5"? Thanks!
@@da324 That is correct! 👍
What about a 4:12 with 16in overhang
What if you don’t know the pitch? Thanks in advance!
If you are going to do a lot of this, save yourself all the headaches and buy yourself a squangle by Mayes.
How do you know where to start your bitdsmouth cut?
What if it's a 2x6?
Where do you make that birds mouth cut on the rafter?
The birds mouth cut will need to be made where the rafter comes in contact with the top plate.