Standard dishwasher sizes: How to measure a dishwasher

Finding the right dimensions for your dishwasher before you shop can help eliminate the guesswork as you determine what depth, width and height best fits your kitchen’s layout.

From standard to small space, this guide can help you measure your cabinet opening, make decisions on interior layout, and ultimately find the right size dishwasher for your family.

How to measure for a dishwasher in 3 easy steps

Discovering the dimensions for your dishwasher is a simple process that can save you from the headaches of an ill-fitting unit down the road. Track down your measuring tape, then follow the steps below to learn how to measure the width, depth and height of your dishwasher opening.

Step 1. Measure for dishwasher width

Standard cabinet opening width vs. small space cabinet opening width:

• Measure from cabinet to cabinet, making sure that the sides of your dishwasher will be completely enclosed once installed. It’s better to leave a little breathing room on each side than to have it be a tight fit.

• You can install close to a wall or cabinet on one side as long as you leave at least two inches between it and the side of the dishwasher door.

Step 2. Measure for dishwasher depth

• Measure from the back of the opening to the front. 

• Make sure to leave enough room (at least 27 inches) in front of the dishwasher to comfortably load and unload dishes, plus enough room to move around between the open door and any counters and islands.

Installing a dishwasher with a panel may affect depth.

Step 3. Measure for dishwasher height

• Measure from the floor of the opening in which the dishwasher will be installed to the lowest point of the countertop.

• Most dishwashers require a 34 1/2–36-inch tall opening.

Additional layers of flooring in the kitchen may impact your installation process.

Are there different sizes of dishwashers?

Dishwashers typically fall into one of four size categories: standard, oversized, compact and portable. The dimensions of dishwashers installed in cabinetry only vary by width, while portable dishwashers are often deeper and taller than built-in models. Read our guide on the differences between portable vs. built-in dishwashers to learn more.

As you measure for your space and shop for the best fit, keep in mind that the dimensions of dishwashers are determined by the opening size they’re made to fit, rather than the measurements of the dishwasher. A dishwasher labeled as 24 inches wide might actually be more like 23-1/2 inches wide.

Shop Whirlpool^® Standard Size Dishwashers

Does a dishwasher need space around it?

To make sure you have plenty of room for loading and unloading, keep at least 27 inches of open space in front of the dishwasher. If you plan to install your dishwasher in a corner location, give it at least 2 inches of space between the side of the open door and wall or cabinet.

How much space should be between the countertop and the dishwasher?

Standard dishwashers are designed to fit common dishwasher cavity dimensions and typically run one-half to one-third of an inch smaller than the opening. This naturally provides all of the wiggle room the dishwasher needs to fit properly within the cavity between cabinets. Double-check your dishwasher’s installation manual to find out if there’s a minimum requirement for space between the dishwasher and countertop.

Should the dishwasher be flush with the cabinet?

Aligning the dishwasher door panel with the front of the cabinet doors helps provide a sleek aesthetic in the kitchen. Dishwashers with a pocket handle can align completely with kitchen cabinets, while those with bar handles will likely protrude past the face of cabinets.

Getting the right layout

At some point, you’ll need to decide whether you want a front control or top control dishwasher. Front control dishwashers let you easily see and select cycles, while top control dishwashers hide controls for a more streamlined look.

You’ll also need to think about your dishwasher's interior. The exterior dimensions of a dishwasher rarely affect the interior capacity, but there are other ways to add increased space for dishes. Many dishwashers have two racks, but dishwashers with a 3rd Rack give you extra room for hard to fit items. When selecting your dishwasher you’ll also want to take into consideration the need for a dishwasher air gap and how much space will be taken up in your kitchen during installation.

Learn more about the different types of dishwashers like tall tub and third rack dishwashers or check out the dishwasher buying guide to choose the best one for your kitchen.

Shop Whirlpool^® Dishwashers to fit your space

Stay on top of dish duty with the help of a Whirlpool^® dishwasher. No matter what feature you choose, you can be sure it will have the features to get your dishes, cookware and utensils clean and dry. Explore the entire collection to help keep your kitchen tidy.