Sizing Up Your Options: How to Measure for a New Single Bowl Sink

Choosing a new single bowl sink isn’t just about style—it’s about getting the size right. A sink that’s too large won’t fit your cabinet base, and one that’s too small can look out of place and limit your workspace. Taking accurate measurements before you buy ensures a smooth installation and saves you from costly mistakes. Here’s how to measure your space for the perfect single bowl sink.

Start with the cabinet base measurement. Open the doors under your sink and measure the width of the cabinet from left to right. This determines the maximum sink size your kitchen can accommodate. As a rule of thumb, your sink should be 2–3 inches smaller than the interior cabinet width. For example, a 36-inch cabinet can typically fit up to a 33-inch sink. Knowing this measurement is the foundation of your decision.

Next, measure the countertop cutout if you’re replacing an existing sink. Remove any caulk or mounting hardware, then measure the length and width of the opening from edge to edge. Also, note the depth of the current sink basin, as this affects how much under-sink storage you’ll retain. If you’re switching from a double bowl to a single bowl, you may need to adjust the cutout, so plan accordingly.

Depth is just as important as width. A standard single bowl sink depth ranges from 8 to 10 inches, but you can go deeper if you frequently wash large pots or pans. Keep in mind that a deeper sink will reduce cabinet storage space and may require adjustments to plumbing. Balancing usability with under-sink clearance ensures your new sink is both functional and practical.

Don’t forget the faucet and accessory space. If your sink requires a faucet deck or has pre-drilled holes, make sure they align with your plumbing setup. For undermount sinks, you’ll also want to confirm that there’s enough counter space behind the sink for your faucet and any additional features like soap dispensers or filtered water taps.

At I Hate My Sink, we guide homeowners through every step of sink replacement—including accurate measurement. With the right dimensions, you’ll avoid the headache of misfits and enjoy a sink that works perfectly for your space. Measuring carefully now ensures your single bowl sink becomes the centerpiece of a kitchen that’s as functional as it is beautiful.

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