Atrend 12SVR - White Carbon Fiber Single 12" Vented Custom Subwoofer Box 1.85 Cu Ft / Sub Platinum Wood Grain Single 12" Vented Custom Subwoofer Box 3/4" MDF Construction Miter & Dado Construction Enclosure W X H X D 18.25 x 16.25 x 18.25 Cutout Hole 11.13"