This 6 foot bench without back is made of 2 3/8 inch O.D. galvanized tube with 1 1/16 inch cross brace and portable leg style to allow for mobility. The seat is made of 2x10 fiberglass plank built with reinforcing core type construction. To guard against up ending or tipping, end overhang is only 6 inch. Commercial fiberglass park benches can be purchased with fiberglass picnic tables for a complete set that will save.