Framing and Sub-Flooring | Forum profile

Answered in Carpentry forum.

Thank you again. Let me rephrase the question in a way the enables a more palatable answer. Given a standard engineered LVL 3"x24" what span would it support for a floor of 40psf DL+LL, and 50psf DL+LL. Quote: you cant create your own glu lam sitting in your garage with a bucket of adhesive and pieces of plywood. We will just have to disagree on this one. I have glued wood "in my garage" where the wood ripped apart before...

The HVAC contractor is responsible for the cut truss. Make him get engineer approved repair and do it at his cost. He had no business cutting that truss. Trusses are not to be cut, period. You are being very generous if you let him off the hook.

Or if you have already let the contractor off the hook via negotiation, you could drill through your plywood gusset and the metal web fastener and use some lag bolts to hold the whole thing together at that end. You proceed at your own risk, but each individual truss doesn't have to carry a huge load. They're designed to work as a system and spread the load. So all you need to do is restore the vertical strength of the cut truss.

You could remove the subflooring and plane down the offending joist.

I'm planning on building a new divider wall in the basement. It has a finished ceiling(drywall). I want to build it on the floor and then stand it up and nail it.How much shorter than the actual existing height should I build it so I can still stand it up? When I shim it, will it make a difference if I put the shims under the bottom plate or on top the top plate? Should the wall be real tight or should it be a little loose to allow for...

I worked with a carpenter who used to build walls like that. If the floor and ceiling are level, you can do it. Subtract the thickness of 2 2x4s, from the height and cut the studs to that size.

most, if not all engineered lumber manufacturers stop at 18" depth so my software won't do a 24" deep calculation. but a 3.5"x18" LVL will make up to 28' within your situation if that helps at all. but you cant really assume from that information that a 24" beam made out of plywood and wood glue would make that span. basically, you could probably rationalize something like that in your own head and it may...

I didn't know where to post this, but here goes: I am planning to put a door into an interior wall where there is currently a larger opening. The floor is a real wood floor, so the question I have is: Should I frame the new wall (surrounding new door frame) right on top of the wood floor (screwing through the wood floor and into the subfloor), or should I cut the space out of the floor for the new bottom plate and screw directly into the...

Honestly, it's far easier to frame the wall by attaching the top plate to the ceiling and the bottom plate to the floor and then adding the studs. Use screws to attach the studs to the plates. Wishing you success.