Curved plywood sill/top plates
Curved plywood sill/top plates
(OP)
Working on a 20'x40' oval (in plan) structure. The framer used 1 1/8" rated plywood for the curved sill plate, and double 1 1/8" for the top plates. Is this typical practice for curved situations? This is the first curved structure I have worked on.
Also, how are curved shear walls dealt with? They cut a 1/8" deep vertical cut all the way up the wall every 4 or 5 inches O.C. so they could bend the plywood to fit the wall. Obviously, this is no good. What is the norm? What do you suggest for a fix?
Thanks!
Also, how are curved shear walls dealt with? They cut a 1/8" deep vertical cut all the way up the wall every 4 or 5 inches O.C. so they could bend the plywood to fit the wall. Obviously, this is no good. What is the norm? What do you suggest for a fix?
Thanks!






RE: Curved plywood sill/top plates
Where the plywood is cut, can you use the thickness of the plywood minus the cut depth for your "effective" thickness of shearwall?
RE: Curved plywood sill/top plates
The effective thickness would be slightly less than 1/4".
The shear in the walls is minor, and I'm not worried about it, but I would like to have at least the 3/8" thickness. I think I will have them put a 1/4" or a notched 3/8" panel on the outside of the ex. panel. That should take care of it.
RE: Curved plywood sill/top plates
RE: Curved plywood sill/top plates
For the sheathing, I have usually seen 1/4" plywood used, since it is flexible enough to curve.
DaveAtkins