The inspiration for this 1.5 bowl sink article came from the following question on our Facebook page.

1.5 bowl sink example“What the devil are you meant to use this small sink for? the one on the right. It is barely big enough to wash your hands.”

Well, this sink is called a bowl and a half or a 1.5 bowl. The small bowl is very small but it does have some practical uses which include, washing bits off plates before putting them into the main bowl for washing, you can fit a waste disposal underneath it for shredding veg waste, you can use it to store knife and forks before washing them and store your scrubbers and dish cloths in there out of the way.

To get some general feedback on this subject, I opened the question up to our fans on social media, and these are the responses that they came back with for the following question.

“Do you have a sink with a bowl and a half (1.5 bowl sink)? If so, what do you use it for?

In favour of the 1.5 bowl sink

  • My parents use it as storage for the washing up liquid!
  • I use it for storing knife and forks. So far it’s 50/50 across here and Facebook. 50% use it 50% don’t see the point of it. Could be a subject for debate
  • We use it for our waste disposal unit which is suspended under the small sink.
  • I’m having a waste disposal unit fitted in mine which is due to be delivered this week!
  • Oh Lordy yes I can’t live without mine! It gets used all the time for draining small pans, hand washing and soaking the dishcloth in bleach every night. Wouldn’t go back to single bowl. I can have washing up soaking and still do other jobs with the half bowl.
  • I thought the same thing, but now that I have one I couldn’t live without it! Its used for draining off water from hot pots when there’s dirty plates in the other, washing hands, rinsing off plates etc when washing up.. Storing washing up bottle and sponge lol the list goes on!
  • I rinse the soap off before going to drain whilst doing all the dishes

Not big fans of the 1.5 bowl sink

  • We used to have one! Silly little bowl! Exactly why we now have two full size sinks.

Here is 1.5 bowl sink in action with the small bowl being used as a storage and drainage space for wet cutlery.

1.5 bowl sink

Send your pictures to show how you use yours to


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4 thoughts on “What is a 1.5 bowl sink?”
  • Danielle says:

    Is it possible to have a 600mm highline wide unit for a 1.5 undermount sink with double doors? On the website, the only double door units start at 700mm or wider, and the 600mm unit is only a single door. Thanks.

    February 28, 2022 at 11:02 pm
    • DIY Kitchens says:

      Hi, double doors only start at 700mm wide on the sink base units.

      March 1, 2022 at 6:55 am
  • Jonathan Merrett says:

    Hi there, Could you give me some advice on fitting a Coniston one and a half bowl sink. I have a 600mm wide Malton sink unit to fit the sink in to but it doesn’t seem to fit, is it normal to need to cut out part of the front of the base unit at the top so that the sink will fit in? I’m planning to use a 20mm thick worktop but the sink seems to have a 30mm ledge surrounding it underneath. There’s no mention of this in the technical guide or on the specifications for the sink.

    Many thanks,


    May 17, 2016 at 10:52 pm
    • Diy Kitchens says:

      Hi, yes you have to cut the top rail to allow the sink to fit. The ledge under the worktop shouldn’t really matter, as this wont be seen.

      May 24, 2016 at 12:52 pm
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