I use a hollow core door from Lowes or Home Depot. They come in various sizes from 26" wide up to about 36" wide.

It's pretty easy to tell if it's straight. Take it out of the rack and look down the side where you'd would normally install the hinges. If it looks straight--it usually is good enough to build on. Now look down the side where you'd normally want the latch and door knob. Straight from one end all the way to the other? Good enough.

Wrap it in 2x4 around the perimeter. Screw the 2x4 on. Now put some legs on it and maybe a shelf about 24" below the table top. This is great for storage and helps to stiffen it up to keep the table from flopping around.

How high should your building board be?

Stand up. Bend your elbows so your hands are out in front of you. Now measure from your elbow to the floor. Thats about how high you want your table. Maybe 3 or 4 " lower, but thats all or your neck will be kinked up from bending over all day long.

Neat thing about it is when it's beat up and got saw marks all over and holes from T-pins--you just take the screws out of the 2x4 and flip the door over. Brand new building surface. You can spill epoxy and alcohol all over it. Spill CA on it. No problem. Take a large sanding block with some 80 grit paper and sand the glue off. Good as new.

If you want a REALLY nice building table, then build the hollow core table and then put a piece of 3/8" tempered glass on top of it. Now thats top of the line!! [sm=shades_smile.gif]