dutchswan0311 Messages: 102 Registered: June 2011 Location: Iowa
Viscount
I used #6 1 1/2" wood screws on my first 4pi build. The #6 is a little narrower, which is less likely to split your plywood. The cabinet is perfect and airtight, and I used PL Premium on the joints before screwing them in.
My second 4pi build will be with Tightbond and clamps. I think the not using screws plan is more of an aesthetic thing than a structural thing, but I want to get good at glueing things. They are not kidding that Tightbond is easier to sand and clean (especially off your skin). If you do clamp them, I found 8 clams to be insufficient, and bought 4 more. Cost was about $15 USD each.