The Original Granite Bracket Regular Wood Shelf Bracket The shelf support brackets are designed with pre-drilled holes to secure your wood material to the steel bracket. Screw holes on the horizontal side are 2 inches from the beveled end and 3 inches from the 90-degree corner. Features Brackets can be customized. Call our customer service team to place the order (Custom brackets can't be returned) Virtually invisible, it gives your countertop or shelf the appearance of floating Use for heavy shelves, desks, or even countertops Easy to install 1/2 inch thick by 2-1/2 inches wide Beveled edge for safety Painted with a double coat of rust-inhibitor black paint Hardware included Made in the USA Note: Includes screws to mount bracket to the wall but not horizontal mounting screws for the shelf as there are many different shelf options