Travis,
Also take a look at DL's gallery, he built an awesome system with rollers too. Steve Coles also has a tutorial on screws and lumber storage :lol: . Ken's looks like a great portable system, DL's is fixed. Flat is always best for sheet goods but rarel practical in a home shop. I've had more problems with thin goods than 3/4 so I usually try and keep them sandwiched. I plan to do a modified version of DL's that will hinge to the wall with a roller on the outboard end so I can keep it flat against the wall for storage.