How to Install a Bibb-Style Kitchen Sink

Measure the underside of the sink bowl, just behind the apron. Draw a template if necessary to get the correct measurements. Transfer that information to the cabinet base. Cut just enough material from the front of the cabinet to fit the sink flush or slightly below the level of the finished counter. Cut a carefully measured section from an existing counter to accommodate the entire sink.

Measure from the bottom of the sink bowl to the finished top of the sink at several points to determine where to place the supports in the cabinet. Mark the inside of the cabinet where the bottom of the sink should hit, according to your measurements. Measure the sink from front to back. Cut two sections of 2-inch by 4-inch lumber using this figure.

Line the top of one board section up with the line you drew inside the cabinet. Screw through the board and into the cabinet in six to eight places to provide plenty of support. Repeat for the other side of the cabinet. Measure the inside of the cabinet from wall to wall.

Cut a section of plywood the length of the inside of the cabinet and the width of the supports. Measure the location of drains on the bottom of the sink, and transfer these figures to the plywood. Cut holes in the plywood for both drains. Cut notches for the water supplies if your sink reaches the back of the cabinet.

Screw the plywood into the supports in the sink base, ensuring the drain cut-outs will line up properly when the sink is installed. Nestle the sink into the cut-outs. Check that it fits snugly. Install your counter of choice before caulking the sink with a silicone-based caulk.