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PH/Text 224-245-6546 or 847-485-0006 / E-mail smitha@silicone4countertops.com
1521 Brummel Avenue, Elk Grove Village, IL 60007
Countertop Support Brackets for Islands and Overhangs
Find countertop support brackets by where they need to mount. Compare flat and hidden supports for islands and breakfast bars, standard and forward L-shaped brackets for framed installations, and floating wall brackets for desks and counters. You can also shop separate mounting hardware for dishwashers and undermount sinks. Start with your mounting surface and measurements, then check the product details before choosing a size.
Flat Brackets
Achieve a clean, floating countertop look without sacrificing support. Our heavy-duty steel Flat Brackets mount directly to sub-top knee walls to support heavy granite, quartz, marble, and butcher block overhangs with zero knee-bumping obstruction. Sold in a convenient 3-pack.
Crafted from solid, high-grade steel, each flat bracket distributes weight evenly across your sub-framing to protect expensive stone and wood tops from cracking, tipping, or sagging under load. Standard countersunk mounting holes ensure screws sit flush against the bracket surface for a completely smooth finish prior to countertop placement.
L-Shaped Brackets
Engineered from ultra-thick 1/2" solid steel, our 90-degree L-shaped brackets provide maximum structural rigidity for heavy granite, quartz, and wood overhangs. Designed to mount directly to wall studs or cabinet framing, these heavy-duty brackets deliver unyielding strength with a clean 2-3/8" profile.
The vertical leg attaches securely to wall studs, knee walls, or cabinet interiors, while the horizontal arm extends out to carry heavy stone slabs. Featuring standard countersunk holes on both legs, hardware sits completely flush so your countertop lays perfectly level and your vertical finish stays sleek and snag-free.
Forward L-Shaped Brackets
Designed for seamless mounting on pony walls, knee walls, and cabinet structures, our Forward L-Shaped Brackets extend structural support outward to secure heavy stone overhangs. The forward-facing vertical leg hooks down over framing to absorb high torque while keeping hardware hidden from sight.
By transferring weight downward across the front vertical face, this bracket eliminates stress on cabinet edges and prevents expensive granite, quartz, and solid wood slabs from tipping or cracking. Countersunk pre-drilled holes ensure all mounting screws sit flush for a perfectly level countertop installation.
Floating Wall Brackets
Create floating desks, vanities, and wall-mounted counter overhangs with zero floor supports or visible diagonal braces. Engineered from heavy-duty steel, our Floating Wall Mount Brackets anchor directly to wall studs to safely carry heavy granite, quartz, marble, and butcher block surfaces.
Ideal for ADA-compliant bathroom vanities, floating home office desks, or wall-hung dining bars, these heavy-gauge steel brackets distribute cantilevered loads deep into structural wall framing. Pre-drilled mounting holes make stud installation straightforward, while countersunk holes on the top arm ensure your heavy slab rests completely flat.
Hidden Brackets
Provide invisible structural support for deep kitchen islands and large overhangs. Engineered from thick structural steel, our Hidden Support Brackets sit flush inside cabinet framing and knee walls to hold massive stone and wood tops without visible braces or legs. Available individually or in a 3-pack.
Built from high-tensile structural steel, these extended 32", 34", and 36" brackets provide the necessary reach for large breakfast bars and custom island configurations. Standard countersunk mounting holes allow screws to sit completely flush with the steel surface, guaranteeing your granite, quartz, or butcher block slab rests completely flat with zero rocking or sagging.
Dishwashing Brackets
Safely anchor your dishwasher under granite, quartz, and marble countertops without drilling into stone. The Turbo Cat Dishwasher Support Bracket spans across standard openings to provide a solid, concealed mounting plate for anti-tip clips. Available per pack 12pcs or in contractor boxes of 25.
Designed for universal compatibility across standard dishwasher bays, the Turbo Cat transfers pull forces into the cabinet structure. This prevents the dishwasher from tipping forward or shifting when loaded racks are pulled out. Easy to install during new kitchen builds or retrofitted into existing spaces, it is an essential hardware tool for cabinetmakers, stone fabricators, and DIY homeowners.
Sink Brackets
Safely support heavy cast iron, stainless steel, and composite undermount sinks without messy adhesives or cabinet alterations. Our universal Sink Support Brackets anchor directly into cabinet walls, transferring the weight of full water loads away from your stone countertops. Available in convenient multi-packs or contractor boxes.
Our heavy-duty steel Sink Support Brackets mount securely to interior cabinet side walls or front-to-back stretchers. By supporting the sink rim directly from underneath, this bracket system distributes hundreds of pounds of downward force safely into the cabinet box, ensuring a permanent, watertight seal between your sink and countertop without requiring wood framing or custom scribing.
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