I went with a 36" wide by 14' long build table for my XL. Single layer of 3/4" radiata plywood. The fuselage is almost 25" wide (24" center-to-center) at the widest stations and I wanted room to have locating blocks screwed to the outside of the tubing. I also wanted room to put a spar on the table and add ribs behind it with plenty of support for the ribs.