I’m in the process of building a work bench out of mainly recycled materials. The top will be an office door that is 3’ x 7’ x 1.75” thick. The legs are recycled 3’ long 6×6 pressure treated.
I’ve bought 2 pieces of 3/4” spruce sheathing that I am assembling into a 2’ x 2’ x 6’ carcass. The legs will be fastened to the carcass with 2×4’s and the top will be fastened to the 2×4’s.
I’m planning on having the top supported only at the ends so that there will be a space between the carcass and the top.
The question: What is the recommended space between the carcass and the top? Would 3.5” be a good dimension?
I’m planning on putting some MDF on the top and possibly some banding around the sides. hopefully the 1.75” door won’t sag since it is very heavy. It is solid, but I don’t know if is wood or chip board in the centre. There is arborite on both sides of the door.