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Countertop Support Brackets
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  • Hidden Center Mount Countertop Bracket - Double-Sided Knee Wall Support

    Availability: Made To Order - Ships In 3-4 Business Days
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    Our Center Mount Bracket, also known as a Center Levered Support, is designed to support countertop overhangs on two sides of a knee or pony wall.

    Customers also use this support bracket in commercial applications including bars with offset overhangs, or for supporting vanities where the bathroom layout is mirrored on the other side of the wall.

    Vertical steel flanges provide additional stability and can be configured to straddle 2x4, or 2x6 framing.

    • Designed for applications that require countertop support on both sides of a knee or pony wall. Also referred to as cantilevered support.
    • This support is nearly invisible creating a clean look.
    • Used to support Granite, Quartz, Wood, Formica, Concrete, Butcher Block and all other countertop materials.
    • Made to straddle 2x4 and 2x6 wood framing. (metal studs need to be reinforced!)

    Specifications -

    • Dimensions:
      • Horizontal support: 2 ½" wide x ½" thick. Sizes ranging from 14"L to 44"L
      • 2x4 Vertical flange (straddle): 3.60" wide x 4" Tall. Fits 2x4 framing.
      • 2x6 Vertical flange (straddle): 5.60" wide x 4" Tall. Fits 2x6 framing.
    • 6 countersunk mounting holes, sized for 14 x 2 ½” Phillips Flat Head Screws (Included)
      • 4 on top and 2 on flanges.
    • Carry Capacity: 300 lbs. per bracket
    • Material: Solid 1/2" Thick x 2.5" Wide American Steel
    • Finish Options: Premium black & white powder-coated finishes that are suitable for indoor and outdoor use. Raw steel is also available for your own color matching or for no paint needed applications.

    Additional Information -

    • Made in the USA
    • 6 Wood Screws are included with each bracket for your convenience

    Use –

    • Support Offset Bars
    • Support Countertop on both sides of a knee or pony wall.
    • Support Vanities on both sides of a wall in a mirrored commercial setting. Note: using this bracket in a non-cantilevered application like this does reduce the recommended carrying capacity from 300lbs to 200lbs each.
    • Support anything you need to including Granite, Quartz, Natural Stone, Concrete, Wood, Formica, and all other materials.
    Determine What Size & Quantity to Order?

    What Size Bracket Should I Use?

    • NOTE: Ideally you want no more than 3" of unsupported countertop extending past the end of your bracket.
    • Lets figure this out. Take the width of your countertop, in this example we will use a 40" wide countertop. Subtract the desired amount of overhang past the end of the brackets, in this case 4". Why 4"? Because you will have 2" of countertop hanging past the bracket on both sides (2"+2"= 4").
    • This is what the math for that looks like: 40" - 4" = 36"
    • Results: You would want to order a 36" bracket.

    How Many Brackets Should I Order?

    • A good rule of thumb for these brackets is to order as many brackets as you have framing studs.
    • You will want to space these brackets 16" - 24" apart. Spacing them directly over the top of your framing studs will give you maximum support and stability.
    • If you have 6 supporting studs under the countertop including the ends it is advised that you order 6 brackets

    Place one Center Mount Countertop Support Bracket over every framing stud in your knee or pony wall.

    If you have questions about size or quantity please give us a call and one of our experts will be able to help you.

    Installation Guide (PDF)

    View Bracket Spec Sheet (PDF)

    View Bracket Installation Guide (PDF)

    Simple installation overview:

    1. Install one bracket directly under a supporting vertical stud in your knee or pony wall.
      1. Alternatively, you can mount brackets to header style supports as well when vertical wall studs are not possible.
    2. Securely mount the bracket to the stud.
    3. Once the bracket is fastened finish the wall with your desired finishing materials, wood, drywall, tile, etc...
    4. Prior to setting the top in place, run a bead of high-quality silicone adhesive down the center of each bracket.
      1. Pro Tip: For a wood countertop application you have the option to secure that to the bracket with screws and skip the glue. For this, you would have to drill holes in the bracket and secure your wood shelf, desk, counter, etc… with screws using the holes you drilled.

    Why Iron Supports?

    Made in USA
    Quality Supports
    Heavy Duty
    Lifetime Guarantee
    Fast Shipping

    Overall rating: 4.9130435 / 5 from 23 reviews.

    AI Generated Review Summary

    Summary topics

    Review topics: ["quality","shipping","supports","brackets"].

    Review highlights

    Reviews

    Very good quality steel bracket

    "These are very strong, sturdy steel bracket to support granite/stone countertops"

    Lan L. (5/5)

    Good quality product.

    "Good quality product."

    Samuel L. (5/5)

    PERFECT

    "These worked exactly as planned! The quality is great & the shipping was right on time as advertised. I will definitely be ordering from this company again."

    Claudia S. (5/5)

    Center, Mount Brackets

    "Ordered 3 brackets and it worked extremely well. Shipment included installation screws which is a great idea. Will order again for next job. ."

    Dave W. (5/5)

    Great product!

    "Amazing product that did exactly what it was supposed to. Only complaint I had was the actual day these were delivered was almost a week after we had originally expected. Product wise they were perfect."

    Mitchel S. (5/5)

    "Worked out well. Exactly what we needed"

    Dean (5/5)

    Great supports

    "Bout these for a bar top I was doing. Very sturdy. Had to drill some holes in the top plates for what I was doing but other than that they are great."

    Brian T. (5/5)

    Bar top support

    "Delivery was quick and center mount brackets are perfect! Brackets are very heavy duty. Very happy customer."

    ROBERT S. (5/5)

    Awesome product.

    "Needed a pony wall for "table" countertop extension. Photo shows the (over) design(ed) extension to ensure the largest overhang was less than 15 inches. Had to do some fancy woodwork to use 1.5 inch 2-by framing and still get a flush frame edge for the wall. The "quartz" counter installers had never seen those center mount supports. Worked great and I have no worries about the overhang."

    Stephen D. (5/5)

    Great Support

    "These were exactly what we needed go make our tabletop / island come to life! We ordered 3 of the 2 x 6 - 44” sized ones for our 50” wide top. Totally worth the install we are so happy with it."

    Elisha G. (5/5)

    Q&A

    Do you offer the center hidden support brackets for 2 x 6 framing with offset? I would want 17” one way and 5” the other, 22” total.
    We can customize our Hidden Center Mount Countertop Bracket to match the specifications you need, including a 17” offset one way and 5” the other (22” total) for 2x6 framing. Please reach out to us at hello@ironsupports.com so we can assist you further with the custom order details.
    So happy to find your web site I am wondering how wide a countertop I can use with the 2x4 wall cantilever support brackets you make I planning a 24-30"wide by 42-48"long granite countertop to use stools on either side?
    Hi Maureen. We have a variety of sizes available for this bracket and ideally, you want no more than 3" of unsupported countertop extending past the end of your bracket. Take the width of your countertop, in this example we will use a 40" wide countertop. Subtract the desired amount of overhang past the end of the brackets, in this case 4". Why 4"? Because you will have 2" of countertop hanging past the bracket on both sides (2"+2"= 4"). You would want to order a 36" bracket.
    Hey I’m have a quartz counter installed that will have a 14 inch over hang I was looking for something and was looking for something similar to your “HIDDEN CENTER MOUNT COUNTERTOP BRACKET - KNEE WALL SUPPORT” but with on one mounting bracket as opposed to two similar to a “T” shape is this possible for you to manufacture if I had an exact drawing?
    Hi, we can make one for you. Please send the dimensions to hello@ironsupports.com. Thank you.
    I am building a quartzite table over 24inch wide cabinets, table will be 48 wide, so I need 42" supports that span over 24" cabinets if that makes sense,
    Hi, you can install the hidden island brackets in the 42 or 44 inches long - https://ironsupports.com/collections/hidden-countertop-brackets/products/hidden-island-countertop-bracket.
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