KR> Grain orientation on Firewall

>Original message >wondering if the grain orientation on the 5-ply 1/4" birch ply used on the >firewall needs to be vertical or >horizontal Ken, Positioning the outer layer grain in the vertical will give you the most strength from the plywood. You want it positioned this way as the most forces

KR> Grain orientation on Firewall

All, I have been a lurker for several years as I gathered parts and materials but am getting close to gluing sticks together. I have poured over builders websites and old posts, as well as my plans and construction book and have some questions but I'm going to continue to do some research un