Metal plated shelf brackets come in 10" and 12" lengths and should be used every 18" under shelves. It is recommended that shelf bracket support arms Model No. ASSSB-K (SKU 102070) or metal inserts Model No. EXAL96R (SKU 102089) be used in grooves for increased load capacities. Be careful not to overload shelves. Shelf brackets to be used with the Garage Escape Slatwall System.