--- product_id: 452613415 title: "(3-Pack) Countertop Support Bracket,Top Mount,Solid Heavy Duty Knee Wall Hidden Granite Countertop Support Floating Shelf Bracket,Shelf Bracket Hardware,Set of 3,12 Inch,DIY Projects,Screws Included" brand: "petrelwing" price: "€ 105.44" currency: EUR in_stock: true reviews_count: 8 category: "Petrel Wing" url: https://www.desertcart.be/products/452613415-3-pack-countertop-support-bracket-top-mount-solid-heavy-duty store_origin: BE region: Belgium --- # 12-inch heavy-duty steel bracket rustproof black powder coating 200 lbs load capacity (3-Pack) Countertop Support Bracket,Top Mount,Solid Heavy Duty Knee Wall Hidden Granite Countertop Support Floating Shelf Bracket,Shelf Bracket Hardware,Set of 3,12 Inch,DIY Projects,Screws Included **Brand:** petrelwing **Price:** € 105.44 **Availability:** ✅ In Stock ## Summary > 🖤 Hidden power, visible style — support your space like a pro! ## Quick Answers - **What is this?** (3-Pack) Countertop Support Bracket,Top Mount,Solid Heavy Duty Knee Wall Hidden Granite Countertop Support Floating Shelf Bracket,Shelf Bracket Hardware,Set of 3,12 Inch,DIY Projects,Screws Included by petrelwing - **How much does it cost?** € 105.44 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/452613415-3-pack-countertop-support-bracket-top-mount-solid-heavy-duty) ## Best For - petrelwing enthusiasts ## Why This Product - Trusted petrelwing brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Invisible Strength:** Top-mount design keeps brackets hidden for a sleek, modern look without sacrificing support. - • **Space-Smart Design:** No corbels means more legroom and zero knee bumps—perfect for stylish, comfortable countertops. - • **Effortless Installation:** Includes 6 premium wood screws and countersunk holes for a quick, secure DIY setup. - • **Sleek & Rustproof Finish:** Matte black powder coating resists corrosion while adding a contemporary edge to your space. - • **Industrial-Grade Durability:** Crafted from 1/4 inch thick alloy steel to hold up to 200 lbs per bracket—built to last and protect your investment. ## Overview This 3-pack of 12-inch PetrelWing countertop support brackets offers heavy-duty, concealed support for granite, quartz, marble, and more. Made from thick alloy steel with a rustproof black powder finish, each bracket supports up to 200 lbs. Designed for top-mount installation, they maximize legroom and maintain a clean, modern aesthetic. Easy to install with included screws, these brackets are trusted by contractors and perfect for elevating your DIY or professional projects. ## Description desertcart.com: (3-Pack) Countertop Support Bracket,Top Mount,Solid Heavy Duty Knee Wall Hidden Granite Countertop Support Floating Shelf Bracket,Shelf Bracket Hardware,Set of 3,12 Inch,DIY Projects,Screws Included : Tools & Home Improvement Review: Great for supporting floating mantle shelf - Exactly what I needed for supporting my floating fireplace mantle shelf. Although the documentation doesn't say, I contacted the company through the desertcart support tool. They they got back to me very promptly to let me know each bracket can support 200 pounds. Review: Still Holding Up My Counter - This was installed over a year ago in my hanging granite countertop. It's still holding up fine. It wad easy for my husband to install and works well. We had to have the countertops reinstalled immediately after installation because the company installed scratched granite. We were able to reuse these, thankfully. ## Features - STRONG VALUE INDUSTRIAL DESIGN: PetrelWing countertop support top mount bracket is ideal for concealed countertop , Safely provide strong and nonintrusive support for any types of the countertop , include granite, quartz, marble, manufactured stone & more . - NON-INTRUSIVE AND MODERN DESIGN: Once installed this support bracket will be invisible, non-intrusive design provide more open space for chairs and legs ,Support countertop without corbels ,which means no more knee knocking when sitting at your countertop! - HIGH QUALITY INDUSTRIAL MATERIAL: This heavy duty floating shelf brackets made of one piece 2-1/2 Inch wide and 1/4 Inch thick high strength steel , provide high bearing capacity and high stiffness ,making sure your or your customer’s countertop investment is protected against cracking or tipping. - EXCELLENT MADE: Countersunk holes and back-leveled edge for safety and modern style, rustproof black powder coating finish, the quality have been tested by a lot of contractors in US . - Easy to install: Very easy to install , 6 pieces 2 inch wood screws included . ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0B1X5LW6X | | Best Sellers Rank | #379,868 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,703 in Shelf Brackets | | Brand Name | PetrelWing | | Color | Black | | Customer Reviews | 4.7 4.7 out of 5 stars (168) | | Finish Types | Coated | | Included Components | screw | | Item Depth | 2.5 inches | | Item Dimensions | 12 x 2.5 x 0.25 inches | | Item Type Name | Heavy Duty Knee | | Manufacturer | PetrelWing | | Manufacturer Part Number | SKU10063A | | Material Type | Alloy Steel | | Model Number | SKU10063A | | Mounting Type | Embedded | | Unit Count | 3.0 Count | ## Product Details - **Brand:** PetrelWing - **Color:** Black - **Finish Type:** Coated - **Item dimensions L x W x H:** 12 x 2.5 x 0.25 inches - **Material:** Alloy Steel ## Images ![(3-Pack) Countertop Support Bracket,Top Mount,Solid Heavy Duty Knee Wall Hidden Granite Countertop Support Floating Shelf Bracket,Shelf Bracket Hardware,Set of 3,12 Inch,DIY Projects,Screws Included - Image 1](https://m.media-amazon.com/images/I/51mjBq8NwVL.jpg) ## Available Options This product comes in different **Size, Number Of Items** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great for supporting floating mantle shelf *by G***Z on November 22, 2025* Exactly what I needed for supporting my floating fireplace mantle shelf. Although the documentation doesn't say, I contacted the company through the Amazon support tool. They they got back to me very promptly to let me know each bracket can support 200 pounds. ### ⭐⭐⭐⭐⭐ Still Holding Up My Counter *by J***. on January 30, 2025* This was installed over a year ago in my hanging granite countertop. It's still holding up fine. It wad easy for my husband to install and works well. We had to have the countertops reinstalled immediately after installation because the company installed scratched granite. We were able to reuse these, thankfully. ### ⭐⭐⭐⭐⭐ Perfect hidden support *by L***O on June 19, 2024* I installed new quartz countertops and needed hidden support for the extended bar countertop. The predrilled holes allowed firm anchoring to the 2x4 lumber without problems. The quartz countertop rests perfectly on the brackets without any deflection thanks to their thickness. Extremely happy with the result. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.be/products/452613415-3-pack-countertop-support-bracket-top-mount-solid-heavy-duty](https://www.desertcart.be/products/452613415-3-pack-countertop-support-bracket-top-mount-solid-heavy-duty) --- *Product available on Desertcart Belgium* *Store origin: BE* *Last updated: 2026-05-22*