Hi guys,
On my set of little house plans, the 14x24 cabin requires a 4x8 beam built up from sandwiched 2x8s. I imagine there's no plywood sandwiched in between.
But my supplier only carries up to 2x8x16. Since the butting has to fall onto a pier, I thought I would do 16+8, but, it turns out the layout doesn't allow for this. Should I join as 14+10?
Another thing: my supplier has those cheaper in pressure treated, is it okay to build up my beams from P.T.? Thank you!
All joints shall occur over support (watch the words "may" and "shall" when reading). PT is fine, better, in this situation. If it is incised there is a 15% strength derate (Dougfir PT).