Our folding table tops are constructed of high impact polyethylene and are stronger, lighter and more durable than wood. Sturdy Double-Wall Construction Provides a Stronger, More Durable Tabletop. Support Channel Spanning the Table Length. Will not crack, chip or peel. Built for Indoor & Outdoor use. The patented 18-guage steel frame provides a sturdy foundation and is protected with a powder-coated finish. Cross Members For Superior Table Strength. Solid Steel Leg Locks with Integrated Frame Design and Cross Brace & Center Support Brace.