Phisherman wrote:
| I need a 12-foot by 8.5" piece of 3/8" ply. The box stores only
| carry 8-foot ply stock. Already I have a 4x8' sheet of 3/8" ply.
| Is it possible to make a 12-foot piece? I have most common tools.

I've spliced 3/4" Extira to make 12-foot sheets - and would guess than
the same method would work for ply. I routed a pair of 1/3-thickness
steps 3" wide on the edges to be mated and joined with epoxy - with
full-width clamping. You can see the clamping lash-up in the top two
photos at the link in my sig.

--
Morris Dovey
DeSoto Solar
DeSoto, Iowa USA
http://www.iedu.com/DeSoto/PT_Sign.html