Bridge only. Side Piers sold separately. All Straight Bridges have side and rear mounting cleats. They are easily attached to side units using the cleats and provided screws. It is recommended that all Straight Bridges are secured to rear wall using the rear cleat, particularly the 48 inch wide and wider. Available in Maple and Oak and the following styles: Federal, Federal Crown, Face Frame, Face Frame Crown, Regal, and Shaker. Available Widths: 30, 36, 42, 48, 54, 60, and 72. Available Depths: 12, 16, 18, and 24.