Hidden Long Support Bracket for Island & Countertop Overhangs Hidden Long Support Bracket for Island & Countertop Overhangs Hidden Long Support Bracket for Island & Countertop Overhangs Hidden Long Support Bracket for Island & Countertop Overhangs

Hidden Long Support Bracket for Island & Countertop Overhangs

Item # IR01001

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You can adjust order quantity on the next screen. These are Made-to-Order: Lead time to make is 15 business days.

Lead Time: Typically ships within 15 business days.
Shipping & delivery info: UPS, USPS & FedEx

About this product


  • Ideal where drawers might hinder installation of other bracket types  
  • Preferred for its maximum strength and support, and easy installation
  • Requires only notching of cabinet walls and insertion of screws (included)
  • Screws secure bracket to cabinet wall on side opposite overhang (click thumbnail image #2)
  • 1/2"-thick heavy-duty American steel, 2-1/2” wide (click thumbnail #3 to view drawing)
  • Durable powder-coated finish in black or white; or choose raw steel (must be finished to avoid oxidation)
  • 15 sizes from 16"L to 44"L 
  • End of bracket's horizontal end is beveled for safety

Important Notes

  • Select a length that will leave no more than 4" to 6" of overhang unsupported.
  • Brackets should be spaced no more than 16" to 18" apart, center on center.
  • Installation requires notching out sections (2-1/2"wide x 1/2" deep) of the base cabinet (see thumbnail image #3). 
  • A countersunk hole is drilled into the underside of each bracket, 1.5” in from its end (see last thumbnail image). A 1.25”-long screw is provided. These holes and screws help secure the wood top to the brackets and prevent bowing. The screw's diameter is small enough to allow for wood expansion & contraction.


Support Brackets for Cantilevered Islands Are Nearly Sight Unseen

These virtually hidden brackets are designed for supporting any heavy kitchen island top that extends beyond the base cabinet. An array of brackets, each 2-1/2 inches wide and ideally spaced no more than 16 to 18 inches apart, can effectively carry the full weight of the entire countertop, including its cantilevered section, which more often than not, creates an area for comfortable seated dining. These are the brackets that professional island makers and remodeling contractors prefer for supporting heavy countertops, even those made of granite or quartz. 

The installation process is fairly simple. First, notches 2.5" wide x .5" deep must be cut into the top of the cantilevered side of the island base. One support bracket will be nested into each cutout and the bracket's "T" end will be attached to the inside of the island base on the side opposite the cantilever, using screws provided.      

These Full-Span Brackets Come in Many Sizes and Multiple Colors

While most of each individual bracket will be totally hidden beneath the island's top, a portion of each bracket will still be visible to someone looking at the underside of the cantilever from below. That's why the otherwise-hidden bracket is available in three different colors. Black and white brackets come powder-coated for added durability.

In order to ensure adequate support of the cantilevered portion of your island or counter top, be sure to order brackets of a length that will leave no more than 4 to 6 inches of the extension unsupported. With 15 different lengths to choose among, you should be able to find a size that fits your new construction or remodel project. 

Need Help Deciding Which Countertop Overhang Supports Are Right for Your Situation?

This decision tree might help you think through options, narrow your choices, and make a final decision.

how to choose a countertop overhang support

How to determine which size hidden long bracket you need.

i. Measure the distance from inside of cabinet wall opposite the overhang to outside edge of overhang.
ii. Subtract 4” to 6” for portion of overhang to be left unsupported.
iii. Select the bracket length equal to your result, or the next larger size.


Sale Price Color Length (in.) Width (in.) Thickness (in.) Weight (lbs.)
$46.50 Black/White 16 2.5 0.5 6
$48.50 Black/White 18 2.5 0.5 7
$50.50 Black/White 20 2.5 0.5 7
$52.50 Black/White 22 2.5 0.5 7
$54.50 Black/White 24 2.5 0.5 8
$56.50 Black/White 26 2.5 0.5 9
$58.50 Black/White 28 2.5 0.5 10
$60.50 Black/White 30 2.5 0.5 11
$62.50 Black/White 32 2.5 0.5 11
$64.50 Black/White 34 2.5 0.5 12
$66.50 Black/White 36 2.5 0.5 13
$68.50 Black/White 38 2.5 0.5 14
$70.50 Black/White 40 2.5 0.5 15
$71.50 Black/White 42 2.5 0.5 15
$75.50 Black/White 44 2.5 0.5 18
$41.50 Raw Steel 16 2.5 0.5 6
$43.50 Raw Steel 18 2.5 0.5 7
$45.50 Raw Steel 20 2.5 0.5 7
$47.50 Raw Steel 22 2.5 0.5 7
$49.50 Raw Steel 24 2.5 0.5 8
$51.50 Raw Steel 26 2.5 0.5 9
$53.50 Raw Steel 28 2.5 0.5 10
$55.50 Raw Steel 30 2.5 0.5 11
$57.50 Raw Steel 32 2.5 0.5 11
$59.50 Raw Steel 34 2.5 0.5 12
$61.50 Raw Steel 36 2.5 0.5 13
$68.50 Raw Steel 38 2.5 0.5 14
$70.50 Raw Steel 40 2.5 0.5 14
$71.50 Raw Steel 42 2.5 0.5 15
$75.50 Raw Steel 44 2.5 0.5 18



Satisfaction Guarantee

Damaged Goods Will Be Promptly Replaced

Although support brackets and corbels are securely packed to withstand rough handling during shipment, occasionally shipping damage does occur. If an item arrives damaged, or your shipment is incomplete, please notify us within 5 days of receipt. We will work quickly to resolve any issues.

Returns Are Subject to a 20% Restocking Fee

In the event you decide to return any item(s) please contact us at [email protected]. Returns/refunds for merchandise can be made within 30 days of delivery, as long as items are in new and resalable condition (this means the items have not been installed or used). You must repack the unused and undamaged merchandise in its original packaging and ship it at your expense.

You will be refunded or credited the price paid for returned merchandise, less a 20% restocking fee. Also, please understand that if you neglect to pre-pay return-shipping costs, they will be deducted from your net refund amount.

Lowest-Price Guarantee

If you find the identical, brand new product for less (including shipping & handling) on another website within 3 days of your purchase, email us the URL of the webpage where you found the lower-price offer. If the online seller is an authorized John Boos dealer, we will refund the difference. Butcher Block Co. will not always be able to match a lower price offer (e.g., in cases where doing so would violate legal agreements between us and our manufacturer-partners) and any refund may be limited (e.g., in cases where the competing offer is below our total cost).


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