The most versatile display system ever created!! 4ft high x 8ft wide ready-to-paint 3/4" medium density fiberboard (MDF) with horizontal grooves to allow slat wall hardware to be moved quickly to change the look of your store. ( Mounting Hardware not Included ). All slat wall items are shipped by LTL freight and not shippable via UPS. Pallet charge based on quantity. $45 skid charge for 40 pieces or less. Aluminum and plastic inserts for grooves are available.