12 ft. 144 in. Black Sliding Barn Door Track and Hardware Kit with Bigwheel J Shape Hanger for Single Door Flexible Drill Bit Nail Down Installs Over Subfloor FRUSTRATION FREE Detailed Nail Down Installs Over Subfloor Any Janka Species Hardness Rating 1010 Length Type Fixed Material Oak Minimum Acclimation Period No Acclimation Required Pallet Depth (IN) 49 Pallet Height (IN) 26 Pallet Weight (LB) 1450 Pallet Width (IN) 28 Pallet Pack Quantity 1 Plank Width Medium plank (5 Dual Handle Control: Separate hot and cold levers for precise temperature and flow Expansion screws are used for cement walls Ordinary screws are used for wood walls and cabinets you would better put a header board that is as thick as the trim and then attach the rail to the header board you need to have at least 8 in