Quartz Countertop Overhang Without Support

3 cm quartz engineered stone can handle a 14 inch countertop overhang without additional support 3 cm granite overhangs should not exceed a 10 inch overhang without additional support bearing in mind the 70 rule.

Quartz countertop overhang without support.

Yes you can extend the overhang on a kitchen island countertop. Amount of overhang you have is the most important factor to consider in deciding whether you need support brackets. Most granite fabricators will recommend support brackets on overhangs over 12 however solely based on the overhang amount. However once you gather your information and find out from the installation guide for your material you will then be better prepared for selecting countertop support brackets that are designed for your purpose.

Alternatively a weak bracket may not support the weight of the countertop overhang. As the chart indicated solid surface countertops may only overhang 6 inches without additional support. That depends on many factors regarding the project material and the thickness of the surface. Countertop overhang will depend on various other measurements such as the countertop itself and cabinetry.

That said there are standard dimensions that can help guide you as you plan out your kitchen remodel. However you may need to install supports such as corbels or legs. Overhangs greater than 15 require the installation of corbels. The following recommendations help determine the needed support for quartz countertop overhang installation.

According to the marble institute of america you can safely overhang granite that is 1 1 4 thick up to 10 without supports. Because not every bracket is the same certain support brackets may be too weak to hold stone like marble granite or quartz. Once your countertop overhang exceeds these numbers it will require additional support through corbels base cabinets or knee walls. So we are ok on the first criteria but we exceed the 1 3 criteria by four inches.

Even leaving your brackets weakly fastened leads to inadequate countertop support. Without any additional support solid surface countertop overhangs cannot exceed 6 engineered stone cannot exceed 14 and granite overhangs shouldn t be more than 10 without additional supports.