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Kitchen Sink Size Guide: Match the Sink to Your Cabinet
Kitchen sink sizing has three dimensions that all matter: cabinet width, sink width and basin depth. Get one wrong and the sink either does not fit, swallows the cabinet or feels too shallow for daily use. Here is the practical sizing guide for residential and commercial kitchens.
Cabinet Width Sets the Limit
The sink cabinet (the cabinet directly below the sink) sets the maximum sink width. Standard cabinet widths and the sink they fit:
| Cabinet Width | Recommended Sink Width | Best Use |
|---|---|---|
| 27 inch | 22 to 25 inch | Compact apartment, secondary kitchen |
| 30 inch | 27 to 28 inch | Small to mid kitchen |
| 33 inch | 30 to 31 inch | Standard residential |
| 36 inch | 32 to 33 inch | Most popular residential |
| 42 inch | 36 to 39 inch | Larger primary kitchen |
| 48 inch | 42 to 45 inch | Commercial residential or open kitchen |
| 60 inch | 54 to 57 inch (double bowl) | Restaurant or large entertainer kitchen |
The rule: sink width = cabinet width minus 3 inches (allows 1.5 inches of frame on each side).
Front to Back Depth
Sink front to back depth is typically 18 to 22 inches. Match to your counter depth (usually 25 inches) leaving 1 to 2 inches of counter behind the sink for a faucet riser and 2 to 4 inches in front for safe leaning.
Basin Depth (Top to Bottom)
| Basin Depth | Use Case |
|---|---|
| 5 to 6 inches | Bar prep sinks (small) |
| 7 to 8 inches | Older traditional sinks |
| 9 to 10 inches | Most modern residential (sweet spot) |
| 10 to 12 inches | Modern deep single bowl |
| 12+ inches | Commercial 3 compartment |
9 to 10 inches is the residential sweet spot. Deeper basins handle large pots but strain shorter cooks.
Bowl Configuration by Cabinet Width
- 27 to 30 inch cabinet. Single bowl only. Double bowls in this width have basins too small to be useful.
- 33 to 36 inch cabinet. Single bowl preferred for modern kitchens. 60/40 double if you handwash dishes daily.
- 42 to 48 inch cabinet. Single bowl extra deep, or 50/50 double, or 60/40 double.
- 60+ inch cabinet. Triple bowl or oversized single. Consider a butler sink.
Apron / Farmhouse Sink Sizing
Apron front sinks add 2 to 4 inches of front to back depth because the apron sits proud of the cabinet. Confirm the cabinet was specified for an apron sink (the cabinet front gets cut to accommodate the exposed apron). Browse farmhouse kitchen sinks.
Drain Location
Most sinks have a centre drain. Premium models offer rear drain or offset drain options that create more usable cabinet space below for a garbage disposal, water filter or pull out trash.
Faucet Hole Count
Confirm the sink hole count matches your faucet. A modern single hole faucet pairs with a single hole sink. A traditional spread faucet with separate sprayer needs 3 to 4 holes.
Common Sizing Mistakes
- Buying a sink wider than the cabinet (does not fit)
- Buying a basin too shallow (water splashes onto counter)
- Buying a basin too deep (back strain on shorter users)
- Buying a double bowl in a 30 inch cabinet (each basin too small)
- Forgetting to confirm faucet hole count matches
Standard Combinations That Work
- 30 inch cabinet + 27 inch single bowl undermount, 9 inch deep, 1 hole faucet
- 36 inch cabinet + 32 inch single bowl undermount, 10 inch deep, 1 hole faucet (most common modern)
- 42 inch cabinet + 36 inch single bowl deep apron, 9 inch deep, 1 hole faucet (farmhouse style)
- 60 inch cabinet + 54 inch 60/40 double bowl drop in, 9 inch deep, 4 hole spread (traditional)
Browse the full range of kitchen sinks in fireclay, stainless, granite composite and copper.
Get the cabinet width first, then pick a sink that leaves 1.5 inches of frame on each side, with a basin depth that matches the user's height. The sink that fits the cabinet, the cook and the kitchen workflow is the right size.