DYI Stand Plan, how is this idea?

[Duckhams]

Originally Posted by Easto

I want to do the top, front, back, and sides in plywood. Maple or birch depending if I'm staining vs painting.

What thickness do you recommend?

Screw the plywood or nail it?

1/2" on top is more than enough. If you're using the 2x4's then 1/4" sheets on the back and sides are easiest to work with and keep the weight down. Screw the 1/2" down and use finishing nails for the back panel. Either could work on the sides, depending on what sort of style you're going for.
Add a good coat of KILZ waterproofer inside and seal the inside panels (at least a couple of inches up from the bottom panel)to prevent water leakage/damage later on. This will save your floor too. No matter how hard you try something will spill, overflow, splash etc.