Standard Kitchen Cabinet Sizes & Dimensions for Base, Wall & Tall Cabinets
Key Takeaways
- Base cabinets run 34.5 inches tall and 24 inches deep, the two numbers every layout starts from.
- Wall cabinets range from 12 to 42 inches tall, and your ceiling height determines which one fits.
- The standard 18-inch gap between the counter and upper cabinets holds steady across nearly every kitchen.
- American Made Cabinets builds every RTA shaker cabinet to these same dimensions, so what you measure is what you order.
Measure Your Kitchen Before You Order
Get four measurements before you start picking cabinets:
- Wall length: Measure each wall that will hold cabinets, floor to floor, corner to corner. Note the exact inches, not the nearest foot.
- Ceiling height: Measure from the finished floor to the ceiling in at least two spots. Older homes often vary by half an inch or more across a single wall.
- Window and door openings: Record the width and the height from the floor to the bottom of each opening.
- Plumbing and electrical locations: Mark where supply lines and outlets sit, plus any gas lines for a range, so your sink base and range cabinet land in the right spot.
Write every measurement down before you shop, because a cabinet order built on a guess costs more to fix than it does to get right the first time. Once you have your standard kitchen cabinet measurements in hand, ordering the right sizes takes minutes.
If you'd rather not do the math yourself, American Made Cabinets includes a free design service with every order. Send in your measurements, or just send photos of the space. A designer will build your layout and run the numbers. You'll get back a 3D rendering with pricing before you commit to anything.
Kitchen Cabinet Sizes Chart
Here's the full breakdown of standard kitchen cabinet dimensions by category:
| Cabinet Type | Standard Height | Standard Width | Standard Depth |
|---|---|---|---|
| Base Cabinets | 34.5" (36" with countertop) | 9"–42", in 3" increments | 24" (reducible to 18" on some styles) |
| Wall Cabinets | 12"–42" (most common: 30", 36", 42") | 12"–36", in 3" increments | 12" or 24" |
| Tall / Pantry Cabinets | 84"–96" (stock: 84", 90", 96") | 18" or 24" stock; up to 36" semi-custom | 12" or 24" |
Keep this chart handy while you plan. It's the fastest way to check that a cabinet you're eyeing will fit the wall you measured.
Base Cabinet Dimensions
The standard base cabinet height sits at 34.5 inches without a countertop. Add a standard 1.5-inch countertop, and the finished surface lands at 36 inches, the comfort height most kitchen designs use.
Standard kitchen cabinet width for base units ranges from 9 inches to 42 inches, with manufacturers offering 3-inch increments between those sizes.
Standard kitchen cabinet depth for base cabinets is 24 inches, from the wall to the front edge of the door.
That depth gives you enough counter space to work and enough box depth to run a sink or a set of full-extension drawers. Some configurations, including full-height door cabinets, can go down to 18 inches deep when a tighter footprint calls for it.
Full-door base cabinets swap the standard drawer-over-doors setup for one continuous opening, which changes how you'd plan storage inside. Our breakdown of full-door vs. door-and-drawer base cabinets covers when each configuration makes sense.
American Made Cabinets builds base cabinets to these exact numbers in our white RTA Shaker collection and unfinished RTA Shaker collection, so a base cabinet from either line drops into a layout built around standard dimensions without modification. The same goes for our light gray RTA Shaker collection.
Wall Cabinet Dimensions
Wall cabinet height, also called standard upper cabinet height, spans 12 to 42 inches. Stock heights cluster around three numbers. The most common are 30 and 36 inches, with 42 inches also widely available. The right one for your kitchen depends less on personal taste and more on your ceiling height, which we'll cover in the next section.
Wall cabinet width matches the base cabinet system, ranging from 12 to 42 inches in 3-inch increments. A 30-inch base cabinet pairs naturally with a 30-inch wall cabinet directly above it.
Depth is where wall cabinets diverge from base cabinets.
Standard wall cabinet depth is 12 inches for most of the run, deep enough to hold plates and glassware without hanging over the counter. Over a refrigerator or as a bridge cabinet, depth can extend to 24 inches to match the appliance below.
Tall and Pantry Cabinet Dimensions
Tall cabinets run 84 to 96 inches high. They handle pantry storage and built-ins, and some kitchens add a utility closet in the same run. Stock heights are matched to common ceiling heights:
- 84" for 8-foot ceilings
- 90" for 9-foot ceilings
- 96" for 10-foot ceilings
Tall cabinets come in 18-, 24-, and 30-inch widths, so kitchens that want a single, wider pantry column instead of two narrower units side by side have a stock option to reach for.
Depth follows the same 12- or 24-inch split as wall cabinets.
A 12-inch-deep pantry works well as a slim storage column near a doorway, while a 24-inch-deep unit matches the base cabinet run and holds bulkier pantry goods or a built-in microwave.
How Cabinet Dimensions Play Out in a Real Kitchen
These numbers come together once you install the cabinets. Here's how.
- Countertop height: A 34.5-inch base cabinet plus a standard countertop puts your work surface at 36 inches off the finished floor. That height has driven kitchen design for decades, and manufacturers build most appliances, including dishwashers and range fronts, to match it.
- The 18-inch gap: Wall cabinets install with their bottom edge 54 inches above the finished floor. Subtract the 36-inch countertop height, and you get an 18-inch gap between the counter and the bottom of the upper cabinets. That gap is the standard backsplash zone. It gives you clearance for small appliances and countertop work without cabinets crowding your workspace.
- Ceiling height decides wall cabinet height: An 8-foot ceiling with no crown molding calls for 42-inch wall cabinets, since they close the gap above the cabinets and offer the most storage. Add crown molding to that same 8-foot ceiling, and a 36-inch cabinet leaves 6 inches of clearance for the molding to sit properly.
Lower or older ceilings, or a kitchen that wants an open feel above the cabinets, usually land on 30-inch cabinets instead.
Bridge cabinets above a range hood or refrigerator install with their bottom edge at 72 inches and should line up with the tops of the surrounding wall cabinets, whichever height you land on. Corner layouts and filler strips build off these same base numbers, and so does appliance clearance planning.
Our cabinet layout and design rules guide covers the details that trip up many first-time remodelers, including refrigerator door swing and dishwasher openings. Check out our top kitchen cabinet trends for more inspiration.
Why Standard Dimensions Make RTA Cabinets Easier To Order
American Made Cabinets builds every RTA Shaker cabinet to the standard dimensions in the chart above. A base cabinet from our lineup measures 34.5 inches tall in every finish and every width. A wall cabinet has a depth of 12 or 24 inches, regardless of the height you choose. That consistency means you can mix cabinets across our collections and plan your layout around standardized numbers. What you measure is what shows up on your wall.
If you'd rather not plan the layout alone, don't forget about our free design service. It's worth using even if you already know your numbers, since a second set of eyes catches clearance issues a tape measure won't.
How To Measure an L-Shaped Kitchen with an Island
Our standard kitchen cabinet sizes work with any layout, including L-shaped kitchens. See what changes when you have to measure around a corner and an island.
Shop Standard Kitchen Cabinet Sizes
Our white, light gray, and unfinished RTA shaker collections ship built to the exact numbers in this guide. Pick your finish and choose your sizes, then check them against the chart above before you order. Shop our selections today and order cabinets built to the sizes you need.
Frequently Asked Questions About Standard Kitchen Cabinet Sizes
What is the standard toe kick height on a kitchen base cabinet?
The toe kick is the recessed space at the bottom of a base cabinet, typically measuring 4 inches tall and 3 inches deep. That toe kick is part of the 34.5-inch base cabinet height, not stacked on top of it, so the cabinet box above it runs about 30.5 inches.
Do all RTA cabinets come in standard sizes, or can dimensions vary by brand?
Most RTA manufacturers, including American Made Cabinets, build around the same base framework. That means a 34.5-inch base cabinet height and 3-inch width increments across the board, with matching 12- or 24-inch depth options for wall and tall cabinets. What varies by brand is depth reduction options and how far the width increments extend on either end. Drawer configurations can differ, too.
Are cabinet dimensions the same for kitchen and bathroom vanity cabinets?
No. Kitchen base cabinets and bathroom vanities now share the same comfort height at 34.5 inches (36 inches with a countertop), but depth is where they part ways. A kitchen base cabinet runs 24 inches deep, while a standard vanity is 21 inches deep to fit smaller bathroom footprints. That 3-inch difference means you can't substitute one for the other and expect your plumbing and door clearances to line up correctly. If you're working on a bathroom project alongside your kitchen, we build our RTA vanity cabinets to the correct vanity depth from the start.
