How to Install a Pedestal Sink

After you assemble your drain, you can move on to the actual installation of your new pedestal sink. Before a pedestal sink takes its place, you need to repair and reinforce the wall behind it to hold its weight. After you do that, you can install the sink easily.

Some sinks require you to install a separate bracket first, although others mount directly to the wall. The following directions are for a sink with a bracket, so you can skip them if the sink you’re installing doesn’t have a bracket.

  1. Position the bracket on the wall and use it as a template to mark the location for the mounting lag bolts (large screws with a square or hex head).

    To determine the exact location of the mounting bracket, consult the roughing-in dimensions provided by the manufacturer. Make sure that the bracket is level.

  2. Drill pilot holes through the layout marks on the wall into the wall reinforcement.

    Make the holes about 1/8-inch smaller than the lag bolts that came with the sink.

  3. Install the bracket with the lag bolts.

  4. Hang the basin on the wall bracket and then install the mounting screws to hold the sink to the bracket and wall.

    If the sink doesn’t have a mounting bracket, install it directly to the wall with the fasteners provided.

  5. Test-fit the pedestal, mark its location, and then move it safely out of the way.

    You don’t install the actual pedestal until after installing the P-trap and attaching the riser tubes to the faucet. Dealing with the P-trap and the rider tubes are discussed in a separate article.

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