brocko Posted March 12, 2019 Report Share Posted March 12, 2019 Can you edge join plywood together? I found a guy who has loads of baltic birch offcuts. Super cheap, ...but they are 1/4" thick, and only 12" wide. 20 cents a square foot. So I'd have to double up the thickness which is no problem. Would I be able to get a strong face joint if I run them through the jointer and glued? Or would I need to add pocket holes and biscuits? Or I could keep the plywood as 1/4", and cut 2 halves of each 1/4" piece with the cut going N-S, then do the same thing, but with the cut going E-W. Then when I glue everything together, it will have joins like brickwork. Quote Link to comment Share on other sites More sharing options...
Hirilonde Posted March 13, 2019 Report Share Posted March 13, 2019 The only way to join plywood together to make a larger sheet and keep the strength of the joint up to the ply without a joint is to scarf it together with at least an 8:1 ratio. Making 1/2" ply out of 2 layers when used the way we use plywood yields a strength barely better than one layer. The brick pattern you speak of disappears when you cut out a frame. Quote Link to comment Share on other sites More sharing options...
Kudzu Posted March 13, 2019 Report Share Posted March 13, 2019 I am with Dave on this. It just sounds like a disaster looking for a place to happen. You only need one sheet of 5x5 plywood and the cost is under $50 typically. I realize many of us have more time then we have money but it's not worth risking you live over $50. 1 Quote Link to comment Share on other sites More sharing options...
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