The SquareFoot SF22 is a heavy-duty reusable concrete footing form made from recycled black plastic in the USA. Measures approximately 22" x 22" square base tapering to a round cylindrical top opening sized for standard posts. Measures 24"W x 24"D x 17"H overall. Ideal for creating structural footings for deck posts, pergolas, gazebos, fences, mailboxes, and signage. Features structural ribbing for strength, drainage/vent holes along the base, and a flared base for load distribution. Includes 1 form. New in original packaging.