24 inches deep
How to Build a Breakfast Shelf Find the studs in your wall using a stud finder and mark lines 42 inches up from the floor. Use your level to make sure they’re even. Screw your shelf brackets or corbels to the wall at those marks. Lay the bar top, centering it over the brackets, and screw in place.
Slide a stud finder over the wall to locate the wall studs. Measure from the floor to the height you want the top of your countertop to sit. Place a 2-inch-by-4-inch-by-6-foot wood board on the lower line you marked on the wall . Attach three 1-inch-by-4-inch wood boards to the wall brace board to hold the countertop .
To be on the safe side, support the stone wire mesh or plywood as well as with corbels or brackets placed at equidistant intervals along the width of the bar top. Put them closer together if you have 2-cm granite slabs for your bar top. Your overhang should not exceed 24 inches.
Solid Surface countertops can overhang 6 inches without additional support (e.g. plywood decking). 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.
The bar top overhang should be a minimum of 8-1/2” and could be as much as 10” so your knees do not hit the bar front. For our extra tall customers the 10” overhang maybe necessary.
Pop out a ledge. You don’t have to go large to get a hardworking breakfast bar . Take a U-turn. Go around a corner. Book a table . Custom design to the space. Stow storage in the surface. Float away. Go along the walls.
Work Surface 36 inches / Eating Surface 30 inches This approach is often chosen for older adults since it allows for standard kitchen chairs that provide easier access and greater comfort than typically achieved with a standard bar stool.
Overhangs like those found on a wall pass through, and eating bars of more than 6”, but less than 12”, can be supported with wood or metal corbels. They can also be supported by a relatively new product called a COUNTERBalance™ CounterPlate™.
Screw a horizontal stud to the wall to support the countertop first, but then measure and cut a vertical stud brace to fit under the horizontal brace. Screw it to the wall stud as well. This should add adequate bracing to the countertop .
When installing granite countertops , you will not need an underlayment of plywood if the granite has a thickness of 3 centimeters (about 1 1/4 inches). However, for granite with a thickness of 2 centimeters (about 3/4 inches), you will definitely need to use plywood for support.
We have to be careful when we install upper bar tops that sit on a 5” knee wall. These overhangs have to be supported by steel braces placed under the countertop and then screwed into the wooden studs in the knee wall. Any granite countertops with more than an 8” overhang should be adequately supported by steel braces.
Outdoor granite counters and bar tops need granite support corbels , legs, or brackets that are both weather resistant and able to support heavy loads. Stainless steel brackets for outdoor granite support.