Our lighter weight BROOKSIDE planters are available in three sizes: 16", 18" and 23" square. Constructed with mortice and tenon joinery, our planters will last for decades and weather to a silver gray patina. A liner is recommended.#BR16 Brookside 16" x 16" x 17" (20 lbs.)#BR18 Brookside 18" x 18" x 19" (25 lbs.)#BR23 Brookside 23" x 23" x 24" (35 lbs.)