This deluxe model 11134 Dura-Trel compost bin has strong PVC lined 4 in x 4 in wooden post inserts with 1.5 in x 5.5 in wood reinforced rails and it measures 3 ft W x 3 ft L x 3 ft H when fully assembled. Weighing 60 pounds this unit will last 20 plus years. Simply turn the compost with a fork, and soon you will have rich and plentiful compost for you garden and flower beds. The all white wood reinforced design allows for maximum support, reliability and longevity. This open air compost bin will never crack, fade, warp or fall apart under normal weather conditions. Its slick design will allow you to go green without being unsightly. This is the strongest Dura-Trel open air compost bin made, and it is the only wood reinforced model available holding 21.5 cubic feet of compost at a time.