Installing A Concrete Sink

Installing an undermount sink in a concrete countertop is similar to installing it into other countertops with a few small but important differences.

Installing a concrete sink.

The pedestal sink must be mounted to the floor for stability. Simply add a lag screw and then snug it down with a ratchet. Make sure the strips are as tall as the finished countertop will be. For drilling into concrete use a hammer drill and a concrete bit.

The box is 2 wider than the sink mold on all sides and sloped in the front to follow the slope of the sink mold. Use silicone or siliconized acrylic kitchen and bath caulk. The adjustable feet are very helpful in getting the sink level with concrete or tile floors. Apply a generous bead of caulk around the top of the sink s flange.

Then add a thorough coat of a release agent spray to help prevent the concrete from sticking to the edge liner and sink knockouts. If they are too short they won t be able to hold all of the concrete you need for the installation. We have made wall mount sinks as small as 14 and as large as 14 feet. Be sure not to over tighten.

The process can be long but patience will yield some satisfying results. Clean the entire form with denatured alcohol to get rid of any excess silicone and debris. For concrete countertops the concrete should not bear the weight of the sink. For best results measure your existing sink cutout to ensure the new sink will fit.

Types of sink supports. They can be mounted to stud walls wood steel and masonry walls cmu concrete etc. For drilling into tile use a tile bit to drill the holes. Most are ada compliant.

Caution because of the weight of the sinks themselves and the added weight of dishes and water undermount sinks are best suited for more solid weight bearing countertop surfaces like marble concrete quartz or granite. If you re installing a sink cut 4 more boards to fit along the outline you drew. Old faucets might need the old block support which simply clips into the sink holes. Attach the old faucet or new faucet to the sink top.

Install the sink where it needs to go and ensure it s level from side to side and front to back. Install the adjacent countertop slabs over the sink sandwiching it between the countertop and the cabinet frame.