?Heavy Duty Floating Shelf Bracket with Heavy Loading Capacity. Our countertop support brackets are made of premium iron that can hold heavy weight well. Apart from the thick steel, the two pieces of steel are solidly welding together to guarantee its security.The countertop metal brackets can hold about 100~200lb per pair. With the floating wall bracket, you can make most use of you wall space and store more items. It is an easy and affordable way for countertop support. ?Size and Dimension: Horizontal support: 2 1/2" wide x 3/8" thick x 18?long, Vertical mounting flange: 2 1/2" wide x 12" long x 3/8" thick steel. The granite countertop bracket is the perfect hidden support for creating Floating Wall Bars, Floating Wall Desks and so on. It?s an economical way to protect your countertop investment. ?Wide Usage of Floating Wall Brackets in Daily Life. The countertop support brackets have one vertical side nailed to the wall stud, while the other side stretches out to support wood workshop or granite countertop. The countertop shelf brackets goes perfectly in a rustic or industrial home decor scheme. The brackets is perfect for floating support for floating desk, bench, workshop, vanity or quartz, granite, wood, concrete and laminate countertops. ?Easy Installation of Floating Wall Countertop Bracket. Measure and mark the appropriate mounting locations on your wall.2. Use a chalk line or laser level to mark a straight line.3.Securely mount the bracket to the side of the stud.4.Once the bracket is fastened patch the wall. Prior to setting the top in place, run a bead of high-quality silicone adhesive down the center of each bracket.