Granite Overhang Support Guidelines

Bar overhangs typically require some form of additional support to prevent future problems.

Granite overhang support guidelines.

How far can granite overhang before it needs support. If your granite top has a 2 cm thickness we recommend attaching a support system should the overhang exceed 6 inches. Here are three granite countertop support options to choose from corbels these are brackets similar to shelf brackets that typically form an l shape to transfer the load down from the countertop to the wall or cabinet below. Granite countertops are one of the preferred material styles because of the durability of the natural stone.

While traditionally countertops are set. Overhang in granite does not need corbels or steel support up to 12 inches. Been doing this for many years without a call back. Most granite fabricators will recommend support brackets on overhangs over 12 however solely based on the overhang amount.

The size of your granite support legs and brackets will be based on your overhang. Typically anything over 10 overhang dimension needs support with either brackets or posts. My client has decided on 3 cm granite countertops and if possible would like the curved bartop piece cantilevered with no or little visible support. Opinions vary on this topic but since the weight of granite can cause it to crack making sure you have the proper support is essential.

Final determination on bracket requirements and spacing should be recommended by your fabricator based on the following factors. How to support a granite countertop overhang. 3 4 thick granite with a 5 8 or 3 4 plywood subtop will cantilever 12 without problems. The length of granite overhang available without support depends on a few factors.

How to add support brackets to existing countertops. For example if your granite overhangs 12 inches past your 2 x 4 knee wall subtract 2 4 for the desired length of your support bracket. Check out our previous article on granite spans. In this case an 8 or 10 deep bracket is called for.

An overhang is the distance something can extend without the need for support. As i ve designed it so far the curved piece is 123 long 24 wide at the widest part of the curve 8 wide at the ends and overhangs the sink side of the short wall by 2 inches and the other. Check with your granite supplier to see what they recommend.