Remove the disposal and drain trap and disconnect the water supply and drain lines to the area.
Attach countertop to cabinet.
An undermount vanity sink requires a very special adhesive.
Install the blocking flush with your cabinet tops by first drilling pilot holes at an angle through the blocking and then screwing the blocking to your cabinets.
Set the sink back far enough to clear the cabinet front.
It is very important to seal the sink properly to the counter top because if the supports weaken and the sink separates from the counter water will leak into your cabinets.
Place countertop on sticks and push firmly to wall.
Place pressure sticks every 12 to 18 inches to help the adhesive bond the.
Now place countertop on cabinet again to double check placement of sticks and that the countertop is tight to the wall.
It must seal and bond very well while supporting the weight of the full sink.
Attach the countertop by driving р 4 in long screws up through the 1x mounting blocks installed by the cabinet manufacturer see the illustration on the fac ing page.
Remove the corner bolts and screws from underneath the countertop holding it down to the.
Place the countertop on the cabinet and ensure the backsplash is flush against the wall.
Predrill a screw hole through the mounting blocks but be very careful not to drill or drive the screws so deeply that you break through the finish surface.
This is to create a surface that you can attach your butcher block countertop to.
Tighten the screw until it just pulls the block snug to the cabinet.
Tighten down the block from inside the cabinet drive a deck screw fitted with a fender washer up through each hole into the butcher block.
Use a quality grade of 3 4 plywood or 1x stock boards to do this.
Lower the countertop back into place or remove the shims.
Apply a bead of silicone caulk or construction adhesive along the top edge of all the cabinet parts that support the.
A continuous bead of caulk fills this varying gap.
Take off the sink brackets and pull out.
Use a belt sander to sand the backsplash to the line drawn with the compass.
Center the sink over the sink base cabinet.
Remove countertop and apply panel adhesive to sticks fig 4 taking care not to use so much that squeeze out drips on cabinets.
You can get into trouble here if you don t think through three important steps.
Position the countertop pieces on the cabinets.
Cut the hole smaller than your sink s rim.
Cut the sealant along the backsplash.
Given less than perfect cabinet installs and the fact that the back side of the stone is not perfectly flat there can be a varying gap between the stone and wood.