The granite sits on the wood and the bottom underneath edge of the granite just about matches the level of where the plywood is.
Attach wood brace for panel to underside of granite counter.
Insert undercounter mount sink clips into the existing holes in the granite.
If the garnite marble or tile is installed on a counter top the cement board in not needed.
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Scrape off leftover caulking on the sink and the underside of the granite countertop using a putty knife.
I installed granite in my new home for kitchen counter tops.
Loosely screw the machine screws into the brass threaded insets using a screwdriver.
First i dry fitted and marked the locations where the two grabbers would be mounted to ensure a precise fit.
Lift the sink into place and hook the top ends of the bar clamps over the wooden brace to support them.
Our contractors lay plywood under our granite countertops.
How to secure countertops.
Place a wooden brace long enough to span the sink opening on the countertop.
Attach the l shaped corner braces from the bottom of the butcher block countertop to perpendicular wood elements in the cabinets.
If the granite is installed on a floor were it will be walked on then 1 4 cement board should be placed on a solid sub floor.
Remove sink from granite and set aside.
Attach the braces to these.
Secondly i used wood clamps to ensure a strong and consistent bond for the first 3 hours after attaching the grabbers to the underside of my granite countertop.
The counter top should be plywood not saw dust board.
I followed the package directions with two exceptions.
Attach at the ends of the countertop.
Most base cabinets will have wood braces running at one or more points through the middle of the cabinet on longer cabinets and on sink base cabinets.
The type of countertop you install determines the method you use to secure the countertop.