Whether you're replacing the vanity cabinet as part of a bathroom remodeling project or installing a new cabinet in new construction, once the style and size has been determined, the actual installation is a matter of following a procedure used by carpenters and cabinet makers to secure the cabinet in place and lay the groundwork for the plumbing and countertop installation to follow.
Instructions
1. Clean the floor area where the cabinet is to be installed thoroughly to remove any dirt or debris.
2. Measure the center lines of the water supply piping and drain line coming out of the wall and transfer these measurements to the back surface of the vanity cabinet.
3. Use a jigsaw or hole saw to cut the openings for the plumbing connections in the back of the vanity cabinet.
4. Locate the wall studs behind the vanity cabinet location and mark the center line of each stud just above the cabinet height.
5. Position the vanity cabinet in place, making certain to feed the water supply lines and drain pipe through the holes drilled in Step 3, and push it tightly against the wall. The rear vertical edge of both side walls should be tight to the wall surface. Shim the base of the cabinet as necessary to align these edges against the wall, and use a level to make certain the top of the cabinet remains level from side to side and back to front.
6. Attach the rear top rail of the cabinet to the wall at the wall studs located in Step 4 with 2.5-inch plated screws.
7. Use a framing square to verify that the cabinet sides are square to the rear wall and secure the base of the cabinet to the floor with 8d finish nails, toenailed at an approximate 60-degree angle at both sides and the front toe kick board. Be sure to also secure any shims added to level the cabinet. Use a nail set to set all of the finish nails used to secure the base.
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