Nov 14 , 2018
Replacing the floor
Let’s face it—it’s easy to get water on the floor of your sink base cabinet. We’ll never understand why cabinetmakers use particleboard for the base, but they do. And once it starts swelling, your only option is to replace it. But you don’t have to cut out the entire bottom. Here’s an easier way to install a new sink base bottom.
Remove the middle section
Drill a 3/4-in. hole in each corner of the traced cutout line. Then run your jigsaw along the line. Remove the old, swollen floor. Remove the drain lines (and garbage disposer, if there is one) to get maneuvering room. Then trace a cutting line about 3 in. in from all four edges. Then cut out the middle section of the swollen sink base with a jigsaw. Next, cut a piece of 1/2-in. plywood to the interior size of the sink base. Cut slots for the water supply tubes. Seal the edges and face of the plywood with urethane varnish. Also check out: 11 Pitfalls of Sink Replacement.