The Kitchen Triangle Has a Birthday, and a Speed Limit

That rule of thumb every kitchen designer quotes, the “work triangle,” didn’t come from a showroom. It came from a research group.

In October 1949, the Small Homes Council at the University of Illinois published a circular called “Kitchen Planning Standards,” written by Elizabeth M. Ranney. It gave actual numbers. Fridge to sink: 4 to 7 feet. Sink to range: 4 to 6 feet. Range back to fridge: 4 to 9 feet. Add the three legs together and the total shouldn’t go past 22 feet.

The bulletin called that shape the “work triangle” and treated it as a way to measure how efficient a kitchen is. It also pointed out which leg gets walked the most in nearly every kitchen: the one between the sink and the stove. And it made a point we still ignore all the time: people cutting through the triangle get in the way of whoever is cooking.

The idea of timing a cook’s steps is even older. In 1926 and 1927, the Austrian architect Margarete Schütte-Lihotzky designed the Frankfurt Kitchen for public housing. London’s V&A museum says perhaps 10,000 were built. Other fitted kitchens came before it, but this was the first to be produced in large numbers, and its compact layout owed a lot to the galleys on ships and trains.

So the layout of your kitchen may have been shaped by people with clipboards counting footsteps, decades before you moved in.

Worth knowing: this is a planning guideline from one 1949 bulletin, written for the kitchens of its time. Plenty of good kitchens today, with islands or two cooks, don’t fit it neatly. It’s a lens, not a law.