Dishwasher Dimensions in Inches 6 Surprising Sizes
A standard built-in dishwasher measures 24 inches wide, 35 inches tall, and 24 inches deep, though compact and portable models can be several inches smaller in every direction. That single measurement is why so many kitchen remodels stall out at the appliance store.
This guide breaks down dishwasher dimensions in inches for six common types, from full-size built-ins to countertop units, so you know exactly what will fit before you buy. We’ll cover standard dishwasher dimensions, cabinet opening size, and the clearance requirements installers actually check.
Most sizing guides stop at one number. This one also explains why a “24-inch” dishwasher can still fail to fit a 24-inch cabinet opening, and what that extra half-inch of clearance is actually for.
How Big Is a Dishwasher, Really?
Dishwasher measurements depend heavily on category. A builder-grade built-in, a slimline European import, and a countertop unit for an apartment can differ by a foot or more in width alone. Knowing which category you’re shopping for narrows the range fast.
Height also shifts more than people expect. Standard kitchen dishwasher size assumes a countertop around 36 inches high, but adjustable legs let most units fit counters between 34 and 35.5 inches. Depth is the number contractors watch closest, since a dishwasher that’s too deep will block a cabinet door or stick out past the counter edge.
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Quick Conversion Table
| Unit | Standard Width | Standard Height | Standard Depth |
| Inches | 24 in | 35 in | 24 in |
| Feet | 2 ft | 2.9 ft | 2 ft |
| Centimeters | 61 cm | 89 cm | 61 cm |
| Millimeters | 610 mm | 890 mm | 610 mm |
| Meters | 0.61 m | 0.89 m | 0.61 m |
These dishwasher dimensions in cm and inches apply to the most common full-size built-in category. Compact, portable, and countertop models run smaller, as the reference table below shows.
Quick Reference Table
| Dishwasher Type | Approx. Dimensions (W x H x D) | Closeness to Standard (X/10) | Best Situation/Use |
| Standard Built-In | 24″ x 35″ x 24″ | 10/10 | Most kitchens with a 24″ cabinet bay |
| Slimline/Compact Built-In | 18″ x 35″ x 24″ | 7/10 | Narrow galley kitchens |
| Drawer Dishwasher | 24″ x 17″ x 24″ (per drawer) | 6/10 | Kitchen islands, ADA-friendly layouts |
| Portable Dishwasher | 24″ x 36″ x 26″ | 6/10 | Renters, no plumbing hookup |
| Countertop Dishwasher | 22″ x 17″ x 20″ | 4/10 | Apartments, RVs, small households |
| Panel-Ready Built-In | 24″ x 34.5″ x 24″ | 9/10 | Custom cabinetry, matching finishes |
Standard Built-In Dishwasher Dimensions
Whirlpool, GE, and Bosch all build their standard full-size dishwashers to roughly the same footprint: 24 inches wide, 34 to 35 inches tall, and 24 inches deep. This sizing has stayed consistent for decades because it matches the standard 24-inch base cabinet module used across most American kitchen manufacturers.
Matching this footprint matters because kitchen cabinets are built around it, not the other way around. If you’re replacing an old unit, sticking with standard dishwasher dimensions means you can skip cabinet modifications entirely and just slide the new one into place.
Compact and Slimline Dishwasher Dimensions
Slimline dishwasher dimensions typically run 17 to 18 inches wide while keeping the same 24-inch depth and similar height as a standard unit. Miele and Bosch both sell 18-inch models specifically for kitchens where a full 24-inch bay isn’t available.
The narrower width comes at a cost: fewer place settings per load, usually 8 to 10 compared to 12-14 in a standard model. Compact dishwasher dimensions make the most sense for one- or two-person households that run smaller loads more frequently anyway.
Drawer Dishwasher Dimensions
Fisher & Paykel popularized the drawer-style dishwasher, and a single drawer measures about 24 inches wide by 17 inches tall by 24 inches deep, roughly half the height of a standard unit. Double-drawer models stack two of these to reach a combined height close to 34 inches.
Key distinction: drawer dishwashers install at counter height rather than beneath the counter, which is why they show up so often in ADA compliant dishwasher planning and kitchen island designs. That raised placement reduces the bending required to load and unload dishes.
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Portable Dishwasher Dimensions
A portable dishwasher, the kind with wheels and a hose that connects to a kitchen faucet, generally measures 24 inches wide, around 36 inches tall, and 26 to 27 inches deep. That extra depth comes from the added housing needed to hold the water supply and drain hoses.
Something no competitor explained: portable units are almost always slightly taller than built-ins because the countertop doubles as the loading surface and needs a flat top panel strong enough to hold dishes. Renters without dishwasher installation dimensions to worry about often choose this category since it needs no permanent plumbing changes.
Countertop Dishwasher Dimensions
Countertop dishwasher size is the smallest category by far, typically 17 to 22 inches wide, 15 to 17 inches tall, and 18 to 20 inches deep. Brands like Farberware and hOmeLabs sell these for apartments, RVs, and dorm rooms where a full kitchen dishwasher size isn’t practical.
These units connect to a faucet with an adapter and hold roughly 6 place settings per cycle. The tradeoff for the small footprint is capacity a countertop dishwasher size works for a couple’s daily dishes but struggles with anything close to a family-sized load.
Panel-Ready Built-In Dishwasher Dimensions
Panel-ready dishwashers match residential dishwasher dimensions almost exactly 24 inches wide, about 34.5 inches tall, and 24 inches deep but skip the factory front panel so a custom cabinet-matching door can be installed instead. KitchenAid and Thermador both offer this option in their built-in lineups.
Why this matters practically: because the base dimensions match a standard unit so closely, swapping a panel-ready model into an existing dishwasher cabinet opening rarely requires any carpentry. The only extra step is ordering or fabricating the matching door panel itself.
Dishwasher Cabinet Opening and Clearance Requirements
Most manufacturers ask for a dishwasher cabinet opening of 24 inches wide by 34.5 inches tall by 24 inches deep, which is slightly larger than the appliance itself. That gap, usually a half-inch on each side, accounts for leveling legs, door hinges, and the water and power lines running behind the unit.
Dishwasher clearance requirements also include space in front of the door installers typically want at least 24 inches of open floor space so the door can swing fully open without hitting an island or opposite cabinet. Skipping this check is one of the most common reasons a new dishwasher gets returned after delivery.
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Where Do Dishwasher Dimensions Come From?
Standard sizing didn’t happen by accident. Kitchen cabinet manufacturers in the U.S. settled on a 24-inch module decades ago, and appliance makers built dishwashers to slot into that same space so kitchens didn’t need custom carpentry for every appliance swap.
This is also why dishwasher width barely varies between budget and premium standard models a $500 dishwasher and a $1,800 dishwasher usually share the same 24-inch footprint, even though internal features differ dramatically. Height and depth see more variation than width because those dimensions don’t have to match a cabinet module as strictly.
FAQ’s
What are standard dishwasher dimensions in inches?
Standard dishwasher dimensions are 24 inches wide, 34 to 35 inches tall, and 24 inches deep. This applies to most built-in models sold in the U.S. and matches the standard 24-inch kitchen cabinet module.
How wide is a compact or slimline dishwasher?
Slimline dishwasher dimensions run about 17 to 18 inches wide, roughly 6 to 7 inches narrower than a standard model. Depth and height typically stay close to standard sizing, so only the width changes.
What is the standard dishwasher cabinet opening size?
A standard dishwasher cabinet opening is about 24 inches wide, 34.5 inches tall, and 24 inches deep, slightly larger than the appliance to leave room for leveling legs and hookups. Always check your specific model’s installation guide before cutting cabinetry.
How deep is a portable dishwasher compared to a built-in?
Portable dishwashers run 26 to 27 inches deep, about 2 to 3 inches deeper than a standard built-in unit. The added depth houses the water supply and drain hose system needed since it doesn’t connect to permanent plumbing.
Are dishwasher dimensions in inches the same across all brands?
Standard built-in dishwasher dimensions in inches are nearly identical across major brands like Whirlpool, GE, Bosch, and KitchenAid, since they’re all built to fit the same cabinet opening. Compact, portable, and countertop categories vary more by brand.
Final Thoughts
Dishwasher dimensions in inches range from a compact 17-inch countertop unit to a full 24-inch built-in standing 35 inches tall, and knowing which category you need before shopping saves a return trip to the appliance store. Standard built-ins, slimline models, drawer units, portable dishwashers, countertop units, and panel-ready built-ins each solve a different kitchen layout problem.
Measure your existing cabinet opening or available counter space first, then match it against the dimensions above rather than guessing based on price or brand alone. A dishwasher that fits the space on day one will save far more hassle than one that requires cutting cabinetry after delivery.
