Home Garden

How to Assemble a Bath Vanity

Assembling a bathroom vanity involves planning and putting together numerous parts, none of which require advanced plumbing skills. The process will be easier if you install the faucet in the sink of the vanity before setting the sink in the cabinet. Once the sink is installed, you will have a harder time tightening the faucet connections and putting together the stopper assembly. If any connections leak after the vanity is installed, tighten them by a quarter turn until the water leak stops completely.

Things You'll Need

  • Measuring tape
  • Stud finder
  • Sawhorses
  • Plumber’s putty
  • Sink faucet assembly
  • Adjustable pliers
  • Plumber’s putty
  • Rag
  • Silicone caulk
  • Pipe tape
  • Drainpipe assembly
  • PVC primer
  • PVC cement
  • Basin wrench
Show More

Instructions

    • 1

      Measure the area where you plan to install the vanity. The vanity must not obstruct any doors from opening or closing, run into other obstacles in the bathroom, or obstruct any pathways.

    • 2

      Use a stud finder to locate the wall studs and mark them. Make the marks higher on the wall than the top of the vanity so you can see them with the vanity in place.

    • 3

      Slide the vanity against the wall. Drive wood screws through the back of the vanity and into the wall studs following the markings above the vanity.

    • 4

      Place the vanity’s sink between two sawhorses, but leave enough room to maneuver around the sink. Spread plumber’s putty on both sides of the faucet’s deck plate. Place the deck so the holes in the plate line up with the holes in the sink.

    • 5

      Insert the sink’s faucet through the mounting holes in the sink and deck plate. Thread the nuts that came with the faucet onto the underside of the faucet. Tighten the nuts with adjustable pliers.

    • 6

      Wrap plumber’s putty around the underside of the sink’s drain assembly, then press the drain assembly into the hole in the bottom of the sink. Point the opening in the drain assembly toward the faucet.

    • 7

      Slide the washer and rubber gasket onto the underside of the drain assembly. Use the adjustable wrench to tighten the compression nut onto the drain assembly. Use a rag to wipe away any plumber’s putty that squeezes out from under the drain assembly.

    • 8

      Drop the sink’s stopper into the drain with the stopper’s opening pointed toward the faucet. Insert the ball-end of the stopper’s pivot arm into the opening in the drain assembly, then thread the locknut onto the drain assembly’s opening by hand.

    • 9

      Insert the other end of the pivot rod through the spring clip and one of the holes in the clevis strap. Slide the lift rod through the hole in the faucet. Insert the end of the lift rod through the “C” shaped portion of the clevis, and tighten the screw against the lift rod.

    • 10

      Apply an even bead of silicone caulk to the rim around the sink opening in the vanity top. Lower the sink into the opening.

    • 11

      Wrap pipe tape clockwise around the threads on the bottom of the sink’s drain assembly. Brush PVC primer on the ends of the sink’s drainpipes. Allow the primer to dry completely, then brush PVC cement on the ends of the drainpipes. Thread the drainpipes together by hand, as well as the stub-out pipe on the wall and the sink’s drain assembly.

    • 12

      Wrap pipe tape around the open threads on the underside of the faucet and the water supply valves. Thread the water supply lines on the underside of the sink and the valves. Use a basin wrench to tighten the nuts on the faucet. Use the adjustable wrench to tighten the nuts on the water supply valves. Turn the water supply valve handles counterclockwise until they stop.