Greg...use a H1 floor joist hangers...1 or both sides instead of bottom blocking...most designers can extend the top cord 1 1/2" for your top rail to be attached...for naximum strength. Always use an altered nail pattern...to make OSHA happy. The system can be layed out on the ground with the plywood/osb decking tacked in each corner of the sheet alternating sheets leaving 4' of 8' u tacked so with a spreader bar and a mobile crane or boom truck...sections of the floor truss system....usually 8-12', can be lifted into place....minimizing the manpower time of being on the roof at high heights and increase productivity....this can be done with roof trusses as well...thx...00, the old trussman from Colorado...lol
@@gregvancomhahaaa Hope not. It’s new. Span about 15 feet. It’s hard to describe. Floor is solid when you walk on it but at the same time the higher frequency motion seems to have more motion than solid beam. Maybe I just need to get used to it?
Greg - great video and graphics. Won't your subfloor supply the necessary membrane to stabilize the trusses? With the subfloor material, why block at all? Thx, Jay
Thanks Greg. I have a 2x4 Truss floor 24OC, and I want to tile a bathroom floor but TCNA methods are very limited for that span. Would adding blocking/bracing (perhaps a mini truss) between trusses under the bathroom floor increase the stiffness of the floor or is this a fools' errand?
I would think you could, but these are engineered floors and any modifications to them might create problems in the future. You could check with one the manufactures for more info.
Do you know how I can add a non load bearing wall above, parallel but between these 2x4 web trusses? Blocking? Otherwise, can I only add non load bearing wall directly on a truss?
Blocks should work. There are a few ways to install them, but I'm not a big fan of how some of the manufactures recommend installation. See if you can find installation instructions for open web floor joist for suggestions or let me know if you can't find anything helpful.
is it possible to add a lvl beam under those joist? some of my bracing are cracked i thought maybe adding a beam under to cut the span halfway would help, but i was told it is not possible unless done properly
I know when I emailed my truss manufacturer, they said they provide no instructions. Just to follow local codes or IRC codes for attachment and blocking
My home was built with these same 2x4 floor trusses. Basement, plus two stories, the floor truss spans 26’, they are 24” deep, 24” on center. I want to take down some room partition walls between two small bedrooms & bath to create a new master bedroom suite. Do I need an engineer to approve the removal of partition walls?
Your question isn't really easy to answer, but I would suggest contacting your local building and safety department and they would be located in your city or county government buildings.
My second floor is resting on these trusses, I am at a loss for how I can tie in a subfloor directly on top of the joists for the curbless shower pan. Also I have to tie in new subfloor in other areas where there was water damage, and I need the floor to be stable. My trusses are almost 24 inches apart on center.
You might be better installing curb, because of the water proofing that might raise floor. I'm not sure I understand your problem, feel free to provide more details if this didn't help.
What bracing can be done on a ICF block home using 2x4 Truss hangers? Using a Watkins Hanger. max span is 21' on truss & 24"on center. looking bracing in kitchen/living room area. Is using 1/2" ply 4' long on side of truss, in middle of truss ok to firm it up?
Feel free to send me some pictures of your project or drawings for more information and you can get our email address at our website. It's difficult for me to tell what you're doing, but you can also provide me with more detailed information.
Why would a floor not b level with these trusses ? Where do strong backs get installed ? I remember u saying 16’ but why not less ? My floors r terrible.
I don't know why a particular or built like this wouldn't be level, but would guess that it might have something to do with incorrect engineering calculations, wrong on center floor spacing or too much weight. For example maybe someone had a waterbed or use the area for storing heavy objects like books. As far as locating strong backs, you should contact the product manufacturer for more information.
I keep getting myself distracted wondering why you would have built the trusses with nails and not use metal connector plates. Is there a reason? There is a bit of time talking about nails that wouldn't be an issue if the 2x4s connected using plates to build the trusses.
The video is not about building a truss, just how they can be connected to each other and other components like walls with nail, not other types of building hardware.
You've been busy asking questions on my channel lately, haven't you. If you're talking about a trust joist, then it might be able to be used if it was the same height, but again you would need to check with the product manufacturer or engineer of record for verification.
Greg...use a H1 floor joist hangers...1 or both sides instead of bottom blocking...most designers can extend the top cord 1 1/2" for your top rail to be attached...for naximum strength. Always use an altered nail pattern...to make OSHA happy. The system can be layed out on the ground with the plywood/osb decking tacked in each corner of the sheet alternating sheets leaving 4' of 8' u tacked so with a spreader bar and a mobile crane or boom truck...sections of the floor truss system....usually 8-12', can be lifted into place....minimizing the manpower time of being on the roof at high heights and increase productivity....this can be done with roof trusses as well...thx...00, the old trussman from Colorado...lol
I like it and thanks very much for sharing.
Thanks for this video. I've been absorbing any and all truss information lately.
You are so welcome and thanks for commenting!
greg you are a hero!
Fantastic explanation. You made it so simple
Glad it was helpful!
Thanks for sharing your knowledge, appreciate it at lot!!
Exactly the info I was looking for. Thank you!!!
You're welcome and thanks for letting us know you it helped.
Best vids on the Tube :)
Specific question- I get vibration on a truss floor with washer spin cycle. Any suggestions on how to firm things up a bit?
Your joist might be over spanned or you could have some engineering or constriction assembly problems, but you could also need a new wash machine.
@@gregvancomhahaaa
Hope not. It’s new. Span about 15 feet. It’s hard to describe. Floor is solid when you walk on it but at the same time the higher frequency motion seems to have more motion than solid beam. Maybe I just need to get used to it?
Love these videos
Very helpful thanks.
Greg - great video and graphics. Won't your subfloor supply the necessary membrane to stabilize the trusses? With the subfloor material, why block at all?
Thx, Jay
It might, but I'm guessing the manufacture wants a firm board to nail perimeter sheathing and to help support framing above these areas.
Can you add additional support and reinforce trusses as a home owner (NJ) without needing a permit? Or are permits required?
Thanks Greg. I have a 2x4 Truss floor 24OC, and I want to tile a bathroom floor but TCNA methods are very limited for that span. Would adding blocking/bracing (perhaps a mini truss) between trusses under the bathroom floor increase the stiffness of the floor or is this a fools' errand?
I would think you could, but these are engineered floors and any modifications to them might create problems in the future. You could check with one the manufactures for more info.
Do you know how I can add a non load bearing wall above, parallel but between these 2x4 web trusses? Blocking? Otherwise, can I only add non load bearing wall directly on a truss?
Blocks should work. There are a few ways to install them, but I'm not a big fan of how some of the manufactures recommend installation. See if you can find installation instructions for open web floor joist for suggestions or let me know if you can't find anything helpful.
I have 2X3 openweb joist like these can we put a LVL beam under midspan ?
How would you suggest attaching a legged board to the webbed side of the floor trusses?
I don't have a video on that, but maybe check with the manufacture.
Informative video.. . I'm a truss designer it's a pleasure if I can help in any case of trusses designing
Thanks
is it possible to add a lvl beam under those joist? some of my bracing are cracked i thought maybe adding a beam under to cut the span halfway would help, but i was told it is not possible unless done properly
I know when I emailed my truss manufacturer, they said they provide no instructions. Just to follow local codes or IRC codes for attachment and blocking
My home was built with these same 2x4 floor trusses. Basement, plus two stories, the floor truss spans 26’, they are 24” deep, 24” on center. I want to take down some room partition walls between two small bedrooms & bath to create a new master bedroom suite. Do I need an engineer to approve the removal of partition walls?
Your question isn't really easy to answer, but I would suggest contacting your local building and safety department and they would be located in your city or county government buildings.
Nice video 😃
Thanks again for watching and glad you liked it.:)
😃
My second floor is resting on these trusses, I am at a loss for how I can tie in a subfloor directly on top of the joists for the curbless shower pan. Also I have to tie in new subfloor in other areas where there was water damage, and I need the floor to be stable. My trusses are almost 24 inches apart on center.
You might be better installing curb, because of the water proofing that might raise floor. I'm not sure I understand your problem, feel free to provide more details if this didn't help.
Regarding the trusses over end walls, is diagonal webbing required or are vertical members sufficient since the bottom cord is continuously supported?
I've seen small trusses without diagonal webbing and only one board in the center, but not on larger ones with longer spans say over 16 feet.
@@gregvancom I'm specifically talking about end wall trusses that bear on the foundation walls for their full length.
What bracing can be done on a ICF block home using 2x4 Truss hangers? Using a Watkins Hanger. max span is 21' on truss & 24"on center. looking bracing in kitchen/living room area.
Is using 1/2" ply 4' long on side of truss, in middle of truss ok to firm it up?
Feel free to send me some pictures of your project or drawings for more information and you can get our email address at our website. It's difficult for me to tell what you're doing, but you can also provide me with more detailed information.
Is this applicable only for floor not for roof?
They can be used for low sloping roofs.
Why would a floor not b level with these trusses ? Where do strong backs get installed ? I remember u saying 16’ but why not less ? My floors r terrible.
I don't know why a particular or built like this wouldn't be level, but would guess that it might have something to do with incorrect engineering calculations, wrong on center floor spacing or too much weight. For example maybe someone had a waterbed or use the area for storing heavy objects like books. As far as locating strong backs, you should contact the product manufacturer for more information.
gregvancom I think I needed more strong backs so to hell with that engineer
Can I add a room on these trusses
I cannot provide structural engineering information for specific projects, but yes they do use these types of floor trusses for home additions.
Thank you !
You're welcome!
The first truss, which is the bear on the top plate, should be a fully supported truss ( vertical webs )
I've seen it done both ways and within the last year.
What about rim boards ??
They usually aren't used with open web joist. Check with manufacture for installation instructions.
Why not use rim board?
I think these trusses need full bearing and I don't think I've ever seen a rim joist used on them.
I keep getting myself distracted wondering why you would have built the trusses with nails and not use metal connector plates. Is there a reason? There is a bit of time talking about nails that wouldn't be an issue if the 2x4s connected using plates to build the trusses.
The video is not about building a truss, just how they can be connected to each other and other components like walls with nail, not other types of building hardware.
Why not use wooden i-beams?
You've been busy asking questions on my channel lately, haven't you. If you're talking about a trust joist, then it might be able to be used if it was the same height, but again you would need to check with the product manufacturer or engineer of record for verification.
There are also advantages to using trusses over I-joists.
@@digitalconsciousness for sure …