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Replacing an old dishwasher or installing a new one requires precise measurements. The vast majority of dishwasher sizes are standard. These standard measurements are based on the size of the cabinet opening, not the exact size of the dishwasher. Even though the current cabinet opening may fit, you should allow for variations in height, width and depth in your particular space. Read on for guidelines on how to measure a dishwasher for your kitchen cabinet opening.
Standard Dishwasher Sizes
Most appliance manufacturers produce standard dishwasher sizes. A standard size dishwasher is made for a kitchen cabinet opening that is 24 inches wide, 24 inches deep and 35 inches high. Some dishwasher models have the same standard height and depth but come in different width sizes. Compact dishwasher dimensions for space-saving, smaller kitchen options are 17 5/8 inches to 18 inches wide. If you need a larger appliance, there are brands that feature dishwashers 30 inches to 42 inches wide.
Tip: Knowing how to measure a dishwasher starts with a precise tool. Choose a contractor’s measuring tape.
The height of the space can vary depending on whether the room is level. To get an accurate measure of the cabinet opening height for your new dishwasher, take three measurements. The first measurement will be on the inside left of the opening. Using a tape measure, start at the floor and measure to the bottom of the counter over the space. Write this measurement down. Repeat the process for the middle of the cabinet opening and the right side of the cabinet.
Tip: Most dishwashers have adjustable legs to bring the appliance level with countertops.
Using a tape or ruler, measure from left to right, inside edge to inside edge, of the cabinet opening. Take the width measurement at the top and at the bottom of the cabinet to take into account any variations. Write down the measurements. Use the smaller measurment for your width.
Keep in mind, one of the most flexible dishwasher dimensions is the width. If you’ve decided to go with a space-saving or oversized dishwasher, measure the space accordingly.
Tip: If installing near a wall, allow about a 2 inch gap between the wall and the new dishwasher door.
When measuring a dishwasher’s depth, remember that the closed appliance door will still extend past the cabinets. Hold the tape against the back wall inside the cabinet opening. Extend it until you reach the front of the cabinet. Write down the measurement.
Don't forget to install your new dishwasher with enough room to open the door and unload. Most brands recommend a minimum of 21 inches to 27 inches between the edge of the open door and the facing cabinet.
Learning how to measure a dishwasher correctly is essential for installation. Always measure twice to get the most accurate information. Choosing the right dishwasher dimensions for your needs really comes down to what size to get. You can choose a standard size dishwasher or opt for a smaller size or a jumbo model. Space-saving dishwashers are great for small kitchens or apartments while larger models are better for large families. If choosing a smaller size, you can use trim to fill in any gaps. For an oversized dishwasher, install it next to a wall to avoid having standard cabinets on either side. Always consult your dishwasher’s owner’s manual for specific measuring instructions. When you’re ready for a brand new dishwasher, we offer delivery and installation.