Dishwasher Placement Is Not a Plumbing Decision

Every kitchen plan in America settles dishwasher placement the same way: next to the sink, on whichever side the drain line already runs. The decision takes about four seconds. It is usually the last one anybody makes about a wall of cabinetry that took four months to specify.

Here is the trouble with it. Proximity to the sink is the loosest requirement in the entire guideline, and it is the only one most kitchens bother to check. The National Kitchen & Bath Association planning guidelines ask that the nearest edge of the dishwasher sit within 36 inches of the nearest edge of the cleanup sink. Thirty-six inches is an enormous allowance. You could set a full drawer bank between the two and still clear it comfortably.

The requirements that actually bind are the ones nobody reads. Dishwasher placement is not a plumbing decision. It is a decision about where a two-foot wall appears in the middle of your kitchen several times a week, and who is standing behind it when it does.

The Dishwasher Placement Rule Everyone Follows Is the One That Matters Least

The same guideline that sets the 36-inch limit also asks for at least 21 inches of standing space between the edge of the dishwasher and any countertop, appliance or cabinet set at a right angle to it. The accessibility standard it cites, ANSI A117.1, is blunter still: the dishwasher door in the open position should not obstruct the clear floor space for the dishwasher or the sink.

Read that a second time. The industry's own reference says the open door must not block the floor in front of the sink. The default installation — dishwasher hard against the sink cabinet, door dropping across the sink base — violates it by construction. Not occasionally. By construction.

An Open Dishwasher Is the Only Wall a Kitchen Builds by Itself

Cabinet doors swing flat against a run. An oven door drops in front of an appliance nobody else needs at that moment. The dishwasher is different. Its door falls horizontally into the aisle and stays there, at shin height, for exactly as long as it takes to unload — which is exactly as long as somebody else wants the sink.

Run the arithmetic against the rest of the guideline. A work aisle should be at least 42 inches for one cook and 48 for two. A walkway should be at least 36. A dishwasher door dropped into a 42-inch aisle takes roughly half of it. What remains is not a work aisle, and it is not even a walkway. It is a gap you turn sideways to pass through, in the busiest three feet of the house.

This may be part of why so many sit idle. The U.S. Energy Information Administration found that of the 80 million American households with a dishwasher, roughly 16 million did not run it at all in 2015, and only 54 percent of households both own one and use it weekly. There are many reasons for that. An appliance that makes the sink unusable while you empty it is plausibly one of them.

Choose the Side by the Dishes, Then Buy Back the 21 Inches

Three moves, in order of how much they change.

Pick the side by the plates, not the pipes. The guideline asks for between 400 and 560 inches of shelf and drawer frontage, depending on kitchen size, within 72 inches of the sink centerline. That storage is where a clean rack is going. If it sits to the left and the dishwasher sits to the right, every plate crosses the sink twice, forever. Decide the side first. Moving a drain line is a day of plumbing, not a constraint.

Leave something between the sink and the machine. A 15- or 18-inch drawer bank set between the two is the cheapest fix in the whole plan. It restores the 21 inches of standing space, keeps the open door clear of the sink's floor space, and puts a cutlery drawer precisely where the cutlery is being unloaded.

Draw the kitchen with its doors open. Plans are drafted with everything shut, which is the one state a working kitchen is never in when it matters. Ask for one sheet with the dishwasher open, the refrigerator open and the oven open at once. The guideline already warns that appliance doors should not interfere with one another, but nobody finds the conflict at the drawing stage unless somebody draws it.

A fourth, if the budget allows: raise it. The NKBA access standard suggests lifting the dishwasher 6 to 12 inches when landing areas can be planned at the sink's height. The rack then arrives at hand level rather than ankle level, and the open door becomes a surface instead of a tripwire. It is the same logic behind building a kitchen at two counter heights rather than one.

A kitchen is judged on the afternoon it is photographed and lived in for the twenty years afterward. The dishwasher belongs entirely to the twenty years. Settle which way its door falls before you settle anything about the handle.

Book a Private Showroom Tour

If this changed how you are reading your own floor plan, the next step is not another article. Book a private tour of a BauTeam studio — Chicago, Dallas, New York, Los Angeles, Atlanta, Boston, Burbank or Las Vegas — and spend an hour with our design team working through your plan, one on one.

Book a private tour