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Planning · Layout

Kitchen layouts: which one your room can actually take

There are five kitchen layouts and most rooms only allow two of them. Which two is decided by the gaps rather than by the cabinets: the aisle you stand in, the counter beside the sink, the swing of the dishwasher door. Work from those and the layout picks itself. Work from a photograph you liked and you will find out the hard way, after the plumbing has moved. Inches first, millimetres in brackets.

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Single wall fits anywhere and gives you no triangle. Galleyis the most efficient shape there is, provided the aisle between the runs is at least 42" and ideally 48". L-shape is the most forgiving and the easiest to open onto a room. U-shapeholds the most, and needs 60" between opposite fronts before it works. An island is the layout people force into rooms that cannot take it, because an island needs a real aisle on every side that gets used.

The five layouts

Layout
Shape
What it needs
Where it wins
Where it hurts
Single wall
Everything on one wall
A walkway in front, and enough wall length to fit three appliances plus counter between them
Fits anywhere, cheapest to build and to plumb, and it leaves the rest of the room free
No triangle at all, so you walk the length of it constantly. Counter runs out fast
Galley
Two runs facing each other
A work aisle between the runs: 42" (1067 mm) for one cook, 48" (1219 mm) for two
The most efficient layout per square foot. Everything is a half turn away
Two people collide unless the aisle is generous, and a through route makes it a corridor
L-shape
Two runs meeting in a corner
A corner solution, and a walkway that clears both runs
The most forgiving layout. Opens to a room, takes an island later, easy triangle
The corner itself is awkward and costs money to use properly
U-shape
Three runs, two corners
60" (1524 mm) between opposite fronts, so the room has to be wide
Maximum storage and counter for the footprint, and the cook is enclosed by the work
Two corners to solve, and it closes the kitchen off from the room
L or U plus an island
A run with a free-standing block
A working aisle on every side of the island that is used, not just the front
Adds counter, seating and a second work face without another wall
The first thing to be forced into a room that cannot take it. Aisles decide, not taste

The gaps decide, not the cabinets

Cabinets come in a ladder of widths and can be made to any size, so they are the flexible part. The distances between them are not. Here is the full set, and one row in it is different from all the others.

Clearance
Figure
Status
Walkway with nobody working in it
36" (914 mm)
Guideline
Work aisle, one cook
42" (1067 mm)
Guideline
Work aisle, two cooks
48" (1219 mm)
Guideline
U-shape, opposite fronts
60" (1524 mm)
Guideline
Landing beside the sink
24" (610 mm) one side, 18" (457 mm) the other
Guideline
Continuous prep counter
36" x 24" (914 x 610 mm)
Guideline
Dishwasher from the sink edge
within 36" (914 mm)
Guideline
Landing at the refrigerator
15" (381 mm) on the handle side
Guideline
Landing at the cooktop
12" (305 mm) one side, 15" (381 mm) the other
Guideline
Cooktop to anything combustible above
30" (762 mm)
BUILDING CODE
Microwave floor above the ground
no higher than 54" (1372 mm)
Guideline

Everything marked guideline comes from the kitchen design association and represents accumulated practice rather than law. You can break any of them, and the kitchen will work slightly worse in a way you feel every day rather than notice on a plan.

The row marked building code is different. Thirty inches between a cooking surface and an unprotected combustible surface above it is a requirement, and it is why the cabinet over a range in a standard run is a short box. The guide to the gap above the counter covers what that changes.

What is left of the work triangle

The triangle joins the sink, the cooktop and the refrigerator, and the old rule asks for each leg between 4 and 9 feet with the three adding up to no more than 26 feet. It came from a 1940s study of a kitchen with one cook, one oven and no dishwasher, and it has been declared obsolete roughly once a decade since.

It survives because the thing underneath it is still true: you carry things between those three points more than anywhere else, and a kitchen that puts them far apart makes you walk. Treat the triangle as a sanity check rather than a target. If one leg is enormous, or a tall run of cabinets sits between two of the points, you will feel it.

What has genuinely changed is that modern kitchens have more than three points. A dishwasher, a microwave, a bin and a coffee station are all places you go repeatedly, and grouping them by task beats drawing a triangle. Where you unload the dishwasher wants to be near where the plates live. That kind of thinking is worth more than the geometry.

The three places every kitchen needs counter

Layout arguments usually focus on storage, and then people cook in the result and discover there is nowhere to put anything down. Three landing zones matter more than a run of extra cupboards:

  • Beside the sink, on both sides. The guideline asks for 24" on one side and 18" on the other, and this is the counter you use most in the day.
  • Beside the cooktop, 12" one side and 15" the other, so a hot pan has somewhere to go that is not the floor.
  • Beside the refrigerator, 15" on the handle side, so you can put the shopping down while the door is open.

Plus one continuous stretch of at least 36" by 24" for actual preparation, ideally between the sink and the cooktop. A kitchen with plenty of cabinets and no uninterrupted counter is the most common expensive mistake in this whole subject.

How to tell what your room takes

Measure the room properly first, at three heights, because walls lean and the smallest reading is the one that governs. That is its own guide: how to measure for cabinets. Then subtract:

  • For a galley:two runs at 24" each is 48" of depth before anything else, so the room needs about 48 plus the aisle. Under roughly 90" wide, a galley is uncomfortable, and under 84" it stops being a kitchen for two people.
  • For an island:the island is typically two rows of cabinets back to back, so 48" of depth plus an aisle on each side it serves. Add that to the perimeter run and see whether the room still has it.
  • For a U:the 60" between opposite fronts is measured cabinet face to cabinet face, so the room is that plus two cabinet depths plus the doors.

The arithmetic is unglamorous and it saves the most expensive kind of mistake, which is discovering the problem after the tiles are down. Draw the layout to your actual wall lengths and the answer appears on its own.

Draw your walls before you choose a shape

Put your real wall lengths in, lay cabinets along them, and the layout stops being an opinion. You can see where the aisle lands, whether the island leaves room to open a dishwasher, and what the run costs, all before anyone moves a pipe.

Frequently asked questions

What are the main kitchen layouts?
Five: single wall, galley (two runs facing each other), L-shape, U-shape, and any of those plus an island. Single wall fits anywhere but gives you no triangle and runs out of counter quickly. Galley is the most efficient per square foot. L-shape is the most forgiving and the easiest to open onto a living space. U-shape holds the most for its footprint but needs a wide room. An island adds counter, seating and a second work face, and it is the layout most often forced into a room that cannot take it.
How wide should a kitchen aisle be?
A walkway that nobody works in wants at least 36 inches (914 mm). An aisle you actually cook in wants 42 inches (1067 mm) for one cook and 48 inches (1219 mm) if two people use the kitchen at once. In a U-shaped kitchen the distance between opposite cabinet fronts wants at least 60 inches (1524 mm). Those are industry guidelines rather than code, and breaking them does not stop the kitchen working; it makes it slightly annoying in a way you feel every single day rather than notice on a drawing.
Is the kitchen work triangle still relevant?
As a sanity check rather than a rule. It joins sink, cooktop and refrigerator, asking for legs of 4 to 9 feet totalling no more than 26, and it comes from a study of a 1940s kitchen with one cook and no dishwasher. What remains true is that you carry things between those three points more than anywhere else, so a layout that spreads them out makes you walk, and a tall run of cabinets between two of them is worse still. Modern kitchens have more than three important points, so grouping by task, such as putting the dishwasher near where the plates live, is worth more than the geometry.
What is the minimum room size for a galley kitchen?
Two facing runs are 24 inches deep each, so 48 inches of the room is gone before you add the aisle. With a 42 inch aisle that is 90 inches wall to wall, and that is the point below which a galley starts to feel tight. Around 84 inches it stops working for two people at once, since one of you has to move whenever the other opens an appliance. If the room is narrower than that, a single wall layout with the opposite wall left free is usually the better answer than squeezing a second run in.
How much space do I need around a kitchen island?
A real working aisle on every side that gets used, not just the front, which is why islands fail in rooms that looked big enough on paper. Budget 42 inches for a side one person works at and 48 where two people pass, and remember that appliance doors, dishwasher racks and oven doors all swing into that space. The island itself is usually two rows of cabinets back to back, so about 48 inches of depth. Add the perimeter run, the island and its aisles together before deciding, and be ready for the answer to be a peninsula instead.
Where should the counter space be in a kitchen?
In three specific places, and this matters more than an extra cupboard. Beside the sink on both sides, with about 24 inches one side and 18 the other, since that is the counter you use most. Beside the cooktop, 12 inches one side and 15 the other, so a hot pan has somewhere to land. Beside the refrigerator, about 15 inches on the handle side, for putting shopping down with the door open. On top of those, one continuous stretch of at least 36 by 24 inches for preparation, ideally between the sink and the cooktop.
Which kitchen clearance is actually required by law?
Of the figures normally quoted, one: the 30 inches (762 mm) between a cooking surface and an unprotected combustible surface above it, which is building code and the reason a standard run puts a short 18 inch cabinet over a range rather than a full one. Everything else, aisle widths, landing areas, the work triangle, comes from kitchen design guidelines that represent accumulated practice. Appliances add their own requirements through their installation instructions, and those are worth treating as binding even though they are not code either.