I managed to get a laminated schoolroom door from a highschool remodel job. It is at least: 2" thick X 36" wide X 7' long. The only problem is it is also around 175 lbs!! I used 7/8" unistrut reinforced 4X4 posts as the legs for stability. The legs also have independant adjustment on the bottom via 1/2" carriage bolts and countersunk nuts for the threads. Strongest darn thing I ever built!!!
I covered the top with a roll of 1/2" medium density foam - similar to the white stuff great planes sells for battery and tank vibration isolation except a little firmer. Don't know how I'm ever going to get it out of the basement when I move...[sm=72_72.gif]

First worktop was a hollow-core interior door. They are ok but do not try to cut it down unless you have a table saw and can cut a new header member for the core!!