The Backyard Creations 4 Sided Picnic Table Frame is a great project for the do-it-yourself person. Made from heavy duty 1-1/2" powder coated tubular steel, the 4 sided picnic table frame is made to last. Open ends allow for slide through seating and multiple material options (sold separately) encourage you to personalize your picnic table. Menards offers many excellent table top and seat material options, examples include: lumber, decking material, or the number one choice Ultradeck. See the back of the package for recommended material sizes. Always remember to purchase your table top and seat hardware (sold separately) - 1/4" carriage bolts with 1/4" nylon lock nuts are recommended. The length of your hardware is determined by the depth of your table top and seat material. With all necessary materials, assembly is quick and easy using the detailed instruction manual. Once complete the 4 sided picnic table frame is designed to work both indoors and out. With its excellent build, quality will last for many years to come.