How to Replace a Sink Base Cabinet Floor

Clean up the moldy mess under the sink

Required Tools for this Project

Have the necessary tools for this DIY project lined up before you start—you’ll save time and frustration.

  • Cordless drill
  • Tape measure
  • Circular saw
  • Caulk gun
  • Countersink drill bit
  • Framing square
  • Jigsaw
  • Pipe wrench
  • Safety glasses
  • Slip joint pliers
  • Paintbrush

Required Materials for this Project

Avoid last-minute shopping trips by having all your materials ready ahead of time. Here's a list.

  • 1/2-in. exterior grade plywood
  • Urethane varnish
  • Caulk
  • 1-1/4-in. galvanized screws