Sink Base Cabinet Sizes: A Complete Guide
The sink base is the one cabinet people get wrong most often — order it too small for your sink and nothing fits; too big and you waste a run. This guide covers sink base cabinet sizes, the simple rule for matching a sink to a base, and what makes a sink base different from a standard base cabinet.
Standard Sink Base Cabinet Sizes
A sink base is 34.5 inches tall and 24 inches deep — the same as any base cabinet — but comes in a limited set of widths built to hold a sink:
| Width | Best for |
|---|---|
| 30 in. | Standard single-bowl sink (most common) |
| 33 in. | Larger single-bowl or standard double-bowl |
| 36 in. | Large double-bowl sink, farmhouse sink |
| 42 in. | Oversized or offset double-bowl |
What Makes a Sink Base Different?
A sink base looks like a regular base cabinet from the front, but inside it's built differently:
- No shelf, open interior — to make room for the basin and the plumbing below.
- False drawer fronts — the top "drawers" are dummy panels, because the sink bowl occupies that space. Many can be fitted with a tip-out tray for sponges.
- Reinforced for weight — a full sink of water is heavy, so the cabinet floor and sides carry more load.
Farmhouse (Apron-Front) Sink Bases
A farmhouse sink needs a special apron-front sink base — the front of the cabinet is cut down so the sink's exposed apron sits proud of the cabinet face. If you're planning a farmhouse sink, tell us before you order; a standard sink base won't work.
How Our Sink Bases Are Built
Shop Sink Bases & Base Cabinets
Sink bases in all standard widths are in stock at our Norcross, GA warehouse in four shaker finishes. Browse base cabinets, or see full sizing in our standard kitchen cabinet sizes chart.
Frequently Asked Questions
What size sink base do I need for a 30-inch sink?
A 33-inch sink base. The base should always be at least 3 inches wider than the sink.
How tall is a sink base cabinet?
34.5 inches, the same as a standard base cabinet — 36 inches finished with a countertop.
Why doesn't a sink base have drawers?
The sink bowl and plumbing occupy the top of the cabinet, so the drawer fronts are decorative false panels rather than working drawers.
Do I need a special cabinet for a farmhouse sink?
Yes — an apron-front sink base, cut down at the front to expose the sink's apron. A standard sink base will not fit a farmhouse sink.
Get Help Sizing Your Sink Base
Send your sink size and kitchen measurements — we'll match the right base and quote it, same business day.