Dishwasher Depth With Door Open: Measuring Clearance

Why the door-open depth matters

The cabinet depth of a dishwasher, often called the installation depth, describes how far the appliance sits into the cabinet opening. But the everyday measurement you will interact with is the depth with the door open: the distance the door reaches into the room when lowered for loading. If that distance is longer than the clear space you have between the dishwasher front and a counter, island, or wall, you will not be able to fully open the door, and loading and unloading becomes awkward or impossible.

This clearance is not just about comfort. It affects how easily you can slide out the racks, how well the door seal functions, and whether a person using a wheelchair or walker can approach the machine. Accessibility standards for public and commercial spaces, like those published under the Americans with Disabilities Act, require kitchens to provide enough turning and approach space for people using mobility aids. While residential kitchens are not always required to follow the ADA, applying the same logic at home makes the dishwasher usable for everyone in the household.

Door-open depth vs. standard depth

These two dimensions are easy to confuse. Standard depth, or chassis depth, is the measurement from the front of the tub to the back, usually matching the cabinet depth. Door-open depth is the measurement from the front plane of the appliance to the farthest point of the door when it is fully lowered. The door-open depth is almost always greater, because the door panel and handle project forward from the front plane.

For traditional built-in dishwashers, the door when open extends roughly two to three feet from the front face, depending on the model and handle design. For compact and countertop units, the depth is smaller but still exceeds the cabinet depth. Drawer-style dishwashers such as those from Fisher & Paykel open differently: the drawer slides straight out instead of hinging downward, so they require less forward clearance but do need room for the drawer to extend.

Knowing both numbers helps you plan a kitchen. The standard depth tells you if the unit will fit inside the intended opening. The door-open depth tells you whether the user can actually operate it in the available floor space. Our guide to standard dishwasher dimensions covers the chassis measurements in more detail.

How to measure door-open depth

You can measure an installed dishwasher or one in a showroom. For a unit that is already installed, open the door until it stops at its natural resting position, which is usually at or near 90 degrees from vertical. Place a tape measure along the floor from the front face of the dishwasher (the plane of the front panel or tub, not the cabinet) to the farthest protruding point of the open door. That farthest point is often the door handle, but for some models with recessed handles it may be the top edge or the outer edge of the door panel.

Take the measurement twice. Once along the floor and once at the height of the door handle, because some doors curve or have handles that extend further at a specific height. Record the larger of the two numbers as your working clearance.

If you are shopping and the spec sheet does not list a door-open depth, you can derive an approximate figure. Measure the door panel height from hinge to top edge, then measure the projection of the panel when open. If you cannot access a physical unit, contact the manufacturer or check the installation manual, which often includes a clearance diagram. Rely on that rather than guessing.

For kitchen planning, the measurement you need is the full forward swing, from the appliance front to the far edge of the door when open. This number should be smaller than the open floor distance from the dishwasher front face to any obstruction such as a counter edge, island, or wall. Our article on installation clearances explains how to apply this to a new build or remodel.

Kitchen layout considerations

The space directly in front of a dishwasher is a work zone. A person needs to stand there to load the top and bottom racks, add detergent, and unload. If the door when open reaches a countertop or an island, you will be forced to stand to one side, which makes the task more tiring and increases the chance of dropping dishes.

The ADA accessibility standards for kitchens were written for public and commercial facilities, but they offer a useful reference for any home. The standards require clear floor space for a forward or parallel approach to appliances, and they specify minimum turning space for a wheelchair. Even if you do not need wheelchair access, giving yourself a little extra clearance in front of the dishwasher improves daily comfort.

Also factor in the direction the door swings. Most built-in dishwashers open downward, so the door occupies a horizontal band of floor space. Portable dishwashers on wheels also have a door that swings down or sometimes to the side, which changes the footprint. For a portable unit, remember that the machine itself is not fixed, so the clearance changes each time you move it. Our buying guide for portable dishwashers discusses this in the context of selecting a model.

A common mistake is to design the kitchen with just enough room for the dishwasher door to open, but not enough for a person to stand comfortably. A good rule of thumb is to allow at least the door-open depth plus additional space for a person, but the exact figure depends on the model and the user. Leave the largest practical gap between the dishwasher and any island or peninsula.

Compact and drawer models have different needs

Compact dishwashers, such as 18-inch units and countertop models, have a smaller door and therefore a shorter door-open depth. However, countertop dishwashers sit on the work surface, so their door when open projects horizontally across the countertop, not into the floor space. This changes the clearance calculation: you need empty work surface in front of the unit, not floor space.

Drawer dishwashers avoid the downward-swing door altogether. The drawer slides straight out, so the forward clearance needed equals the length of the extended drawer plus a little for the user's hands. This is usually much shorter than the door-open depth of a conventional dishwasher, which is why drawer models are popular in galley kitchens and islands. Fisher & Paykel is a major maker of drawer dishwashers, and their designs require a different approach to measuring than hinged doors.

The same logic applies to 18-inch compact built-ins. They are narrower but often have a similar door height to full-size models, so the door-open depth is not dramatically smaller. Do not assume a narrow model needs less forward clearance. Check the spec sheet. For a detailed comparison of sizes, see our article on 18-inch vs 24-inch dishwashers.

Reading the spec sheet

Manufacturers publish two relevant numbers: total depth and depth with door open. Total depth is usually the chassis depth without the door open. Depth with door open appears in the installation manual or spec sheet, sometimes as a dimensioned diagram. Look for it before you commit to a layout.

If the spec sheet lists only total depth, you can estimate door-open depth with a simple method. The door panel height is roughly the height of the front of the machine. When the door swings to horizontal, the door top edge is approximately at the height of the front panel. The horizontal projection of the door is about equal to the door height if the hinge allows a full 90 degrees of travel. This is an approximation, so treat it as a starting point for planning, not a final number.

For panel-ready dishwashers, the situation is different. A custom cabinet panel is attached to the door, adding thickness and sometimes a handle. That changes both the door height and the projection. Measure the final installed panel to get an accurate door-open depth. Our article on panel-ready dishwashers covers the installation implications.

What to pick for your space

Questions

How is depth with door open different from standard depth?

Standard depth is the chassis depth, the distance from the front of the tub to the back. Depth with door open is the distance from the front face to the farthest point of the door when it is fully lowered, usually the handle or top edge. The door-open depth is always larger.

Do I need to measure the door-open depth if I already know the cabinet depth?

Yes. Cabinet depth tells you if the dishwasher fits in the opening, but door-open depth tells you if you can open the door fully and stand in front of it. A unit can fit in the cabinet yet still have a door that hits an opposite counter or island.

What is the easiest way to measure a dishwasher that is already installed?

Open the door to its natural stop, then measure along the floor from the front face of the appliance to the farthest point of the door. Measure again at handle height and use the larger number.

Do drawer dishwashers have a door-open depth?

Yes, but the term is less helpful. A drawer slides straight out, so the forward clearance needed equals the length of the extended drawer plus a small margin. This is usually shorter than the door swing of a conventional model, which is why drawer dishwashers are a good fit for tight kitchens.

Does the door-open depth affect ADA compliance?

Accessibility standards for kitchens, including the ADA Standards, require clear floor space for approaching appliances. If the dishwasher door blocks too much floor space, a person using a wheelchair may not be able to use the machine. Even in homes not required to follow ADA, allowing extra clearance improves usability.