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wrote:

Hello, I am finishing up my shop walls tommorrow and I plan on using
3/8 inch plywood (already on hand). Do I but them up on each other or
should I leave some space between sheets for expansion? I'm not sure
how much plywood expands/contracts but I'm thinking that since I am
screwing the ply to studs spacing shouldn't matter since the screws
will inhibit movement anyhow. My ceilings are 8 feet and change so I
plan on using them vertically and trimming the edges so I can center
the edges on studs. Insulation is already up and I have the ceiling in
( 1/4 inch ply). Once all is in I am painting the whole thing white.
Any opinions, comments? Thanks in advance, Guy

Because the grain in the layers of plywood are laminated in a cross grain
pattern it is fairly stable and does not expand or contract much. I'd
butt the seams tight.

--
Jack Novak
Buffalo, NY - USA
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