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need to know thickness of a torsion box?
I have a torsion box that is 1' x 4'. The grid inside is 5 rows by 8 columns made of 3/4" plywood. The skin is two sheets of 1/2" plywood.
The assembly is firmly attached at both ends.
How thick would I have to make the overall box so that it would hold a 360 pound load in the center? How thick for about a 550 pound load in the center? And by "hold" I mean so that it doesn't bend more than about 1/4 to 3/4 inches.
would an overall height of 2.5" do it or would I need to bump that up to 4". I want it to be safe, but I am running out of room too, and looking for ways to reasonably reduce the height of it.
1 Answer
- Anonymous1 decade agoFavorite Answer
Personally, I would make the height as large as practicable to make sure of your deflection limits. Also, take particular care of the method used to join the pieces of ply, faulty joints that move will lead to failure.