Portable benches are 2 3/8 inch O.D. galvanized tube with 1 1/16 inch cross brace and portable leg style to allow for mobility. To guard against upending or tipping, end overhang is only 6 inches. These benches are perfect for indoor or outdoor use. Great for parks, locker rooms, ball diamonds, soccer fields, etc. These benches are only available with 2 x 10 inch plank seats, and available in 6, 8, or 15 ft. long. Our 15 ft. benches have 3 legs. Our standard wood for our backless bench is 2 x 10 pressure treated No. 1 grade Southern Yellow Pine.