Make sure the plywood does not overhang the outside dimension of the cabinet.
Installing plywood for granite countertops.
Installing a granite countertop yourself is challenging but the cost savings and enhancement to your kitchen are well worth the effort.
Get underneath your countertops and position an electric drill at one corner of your cabinet braces.
However for granite with a thickness of 2 centimeters about 3 4 inches you will definitely need to use plywood for support.
Insert screws upwards to secure the plywood to the countertop.
Space screws every 8 10 inches 20 25 cm.
Attach the plywood to the cabinets by drilling screws through the cabinet.
Also what is the best way to support the bar that has a 10 inch overhang.
Prep the cabinets to receive granite countertops cut 3 4 plywood to fit on top of all the base cabinets.
Maintenance clean your new countertops using only granite and quartz cleaner which you can purchase at most fabrications shops.
I had some 3cm granite installed in a kitchen.
The plywood supports the granite and gives enough clearance for the bull nose edging to clear the drawers and doors.
They put the stone directly on the cabinets.
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.
Is it normal not to use a plywood underlayment.
There is no plywood under the granite.