Flange Brackets fit into half inch slots wall standards and are perfect for wood shelves. We recommend wood shelves because the top of the flange brackets is flat and has two screw holes to secure the shelf onto the bracket. You will need to get both left and right flange bracket because it will be more durable and wouldn’t have the top of the bracket exposed. Flange brackets take up __ slots on a wall standard which is great if you are creating multiple layers of shelves because it will give your lower shelves that much overhead space. Our Flange Brackets come in 5 inches, 8 inches, 12 inches, and many other sizes. American Retail Supply has your supplies for creating your own wall shelves without overspending, call now to speak with our product experts, 1-800-426-5708.