We are going to remodel our bathroom which currently has two sinks (and not that much cabinet/drawer storage) to a single sink with larger (and more) drawers for storage.

Under the current double sink, the setup is two large cabinets with a 9 inch bank of drawers between totaling about 60 inches wide. Each sink has its own water supply and drainage.

My questions are around changing this to a single sink setup. Do I simply cap one set of supply and drainage? Can I do that inside the wall, so it is not under my new cabinets at all? Do I need to tee the two supplies and drains into one? I'd like to do this myself and it doesn't seem to hard, but should I just hire a plumber?

I had to take two photos and splice together. There is a bank of drawers (not shown) between each sink cabinet. As you can see the supply and drainage are into the wall.

Two Bathroom sinks side by side

  • Can you post pictures?
    – Tester101
    Feb 1, 2012 at 20:56
  • I'll take a couple tonight Feb 1, 2012 at 21:18
  • gonna make a difference if drains and supplies come thru the floor or the wall. Feb 2, 2012 at 10:47
  • 1
    Are you opposed to simply capping the lines right at the shutoffs? You may find a use for them in the future.
    – Tester101
    Feb 2, 2012 at 18:01

1 Answer 1


You should have absolutely no problems capping one set inside the wall. What a great DIY project (:

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