Fork,

I am about to build a 1/4 scale F4U-1A Corsair and I am using a table I built for large builds. The wingspan on the plane is 10' but as you know the wings are seldom built in one piece when they get over the 90" range. The table I have is 37"x97" with a MDF top, framed up by 2x4's, and a piece of bull nosed 1/4" glass over that. Unless you are planning on building 1/2 scale planes 12' is by far an overkill. 3' is plenty for building any plane up to one with a 36" wing cord. What you have planned is going to be plenty for building even very large scale aircraft. I have 2 tables and a cutting table plus a work bench for my band saw, scroll saw, vise, and drill press. The smaller building table is a 3' wide hollow core door slab on a 2x4 frame. The first 2 pictures are my primary 37"x97" table and the next 2 are my secondary table 36"x81". I don't have a picture of the work bench for the saws and drill press or the cutting table.

Gibbs