Marvelous How Much Granite Overhang Without Support
Yes you can extend the overhang on a kitchen island countertop.
How much granite overhang without support. Additional support members can include corbels flat steel 38 by 3 or a design. The length of granite overhang available without support depends on a few factors. If your overhang will be within that limit of 15-18 in youre going to need additional support.
This question comes up daily and affects layout and overall design of many kitchens. However the cantilevered portion cannot be. Im going to have a an island which will be 30X42 inches.
Because some granite types are sturdier than others its important to ask your fabricator for the most accurate overhang limits. In this case an 8 to 10 deep bracket is required. 3 cm Quartz engineered stone can handle a 14 inch overhangs and 3 cm Granite overhangs should not exceed a 10 inch overhang without additional support.
According to the Marble Institute of America you can safely overhang granite that is 1 ¼ inches thick up to 10 inches without support. As a result youre not going to get much more than 6 inches of overhang at best from it. 3 cm Quartz engineered stone can handle a 14 inch overhangs and 3 cm Granite overhangs should not exceed a 10 inch overhang without additional support.
When you are installing granite countertops its common to wonder how far can granite span without support. Solid Surface countertops can overhang 6 inches without additional support eg. However the cantilevered portion cannot be more than 13 the total width of the countertop.
The granite slab is about as big as you can do without a seam. Typically anything over 10 overhang dimension needs support with either brackets or posts. Check out our previous article on granite.