Kitchen Layout Dimensions: A Complete Guide by Layout Type

TL;DR: Before you move a single cabinet or brief a fitter, you need the right numbers. This guide covers every standard kitchen measurement — counter depths, aisle widths, and layout-specific clearances — for galley, L-shape, U-shape, island, and single-wall kitchens. Once you have the numbers, use the free kitchen planner at the end to plot your layout in minutes with no sign-up required.

Most kitchen renovation mistakes happen before anyone picks up a tool. The layout looked fine on a rough sketch. The fitter arrived, took out a tape measure, and the whole plan fell apart — because the aisle was 20 cm too narrow, the island blocked the oven door, or the fridge couldn't open without hitting the wall.

Getting the dimensions right first fixes all of that. This guide gives you the exact measurements — in both metric and imperial — for every major kitchen layout type. Read it before you touch any planner, and you'll go into the process with the confidence to brief your fitter accurately and avoid costly surprises.

What Are Standard Kitchen Dimensions?

Every kitchen — regardless of layout — relies on the same core set of measurements. Get these right and every layout type becomes easier to plan.

Counter and Cabinet Dimensions

These are the standard dimensions used by most kitchen manufacturers and fitters across the UK, US, and Europe:

• Base cabinet height: 87–91 cm (34–36 in), plus a worktop of roughly 4 cm (1.5 in), bringing the finished counter height to around 91–95 cm (36–37.5 in).
• Base cabinet depth: 60 cm (24 in) is the standard. Shallow options at 45 cm (18 in) exist for tight spaces.
• Wall cabinet height: Typically 72 cm (28 in) tall, mounted so the bottom sits around 45–50 cm (18–20 in) above the worktop.
• Wall cabinet depth: 30–35 cm (12–14 in) is standard.
• Worktop depth: 60 cm (24 in) to match base cabinets, with an overhang of 2–3 cm (about 1 in) at the front.

These numbers are consistent enough that you can plan around them with confidence. Your kitchen supplier may vary slightly, so always confirm before finalising your layout.

Minimum Aisle and Clearance Widths

The gap between facing units — or between units and a wall — determines how comfortable your kitchen is to work in.

• Minimum single-cook aisle: 1.0 m (40 in). This is the absolute floor. Go narrower and it becomes genuinely difficult to open appliance doors and move freely.
• Recommended two-cook aisle: 1.2 m (48 in). Two people can pass comfortably and work simultaneously without colliding.
• Appliance clearance: Oven and dishwasher doors need at least 1.0 m (40 in) of clear space when open. Plan for this specifically — it's one of the most commonly overlooked measurements.

The Kitchen Work Triangle Rule (and When to Ignore It)

The work triangle connects the three main stations in any kitchen: the cooker, the sink, and the fridge. The principle is simple — the shorter the total distance between them, the less you walk while cooking.

The recommended total perimeter of the triangle is between 3.6 m and 7.9 m (12 ft and 26 ft). Keep each leg between 1.2 m and 2.7 m (4 ft and 9 ft) for comfortable workflow. No single leg should be so long that you're crossing the kitchen for every task.

That said, the triangle is a guideline from the 1940s — and modern kitchens have moved on. Open-plan layouts, kitchen islands, and multi-cook households have made the triangle less relevant for many homes. If two people cook regularly, think in terms of two overlapping zones rather than a single triangle. If you have an island, it often becomes its own prep station that changes the workflow entirely.

Use the triangle as a sense-check, not a design rule you must follow rigidly.

Galley Kitchen Layout Dimensions

A galley kitchen runs two parallel rows of units along facing walls, with a corridor between them. It's efficient, space-saving, and works well in narrow rooms — but the corridor width is everything.

Minimum Widths for a Galley Kitchen

• Absolute minimum corridor width: 1.0 m (40 in). Below this and the kitchen becomes uncomfortable and practically unusable.
• Recommended minimum for a single cook: 1.1 m (44 in). Slightly more breathing room makes a real difference day to day.
• Two-cook galley: 1.2 m (48 in) between the facing runs. This allows two people to open drawers and appliance doors without getting in each other's way.

Remember: the corridor runs between the fronts of your units, not between the walls. If your room is 2.4 m (8 ft) wide and both runs of base cabinets are 60 cm (24 in) deep, your corridor is 1.2 m (48 in) — right at the comfortable two-cook minimum.

How Long Should a Galley Kitchen Be?

There's no strict maximum, but in practice a galley longer than about 4.5 m (15 ft) starts to feel inefficient — you end up walking too far between stations.

• Minimum useful run length per side: around 2.4 m (8 ft) to fit essential appliances and storage.
• Open-ended galley (both ends open to another room): more comfortable and better for light. Works well in open-plan kitchens.
• Dead-end galley (one end closes against a wall): feels more enclosed. If this is your layout, keep the run length shorter and position the most-used appliances closest to the open end.

L-Shape Kitchen Layout Dimensions

An L-shape kitchen runs units along two adjacent walls, forming a right angle. It works especially well in open-plan spaces because it leaves the rest of the room free and creates a natural boundary between the kitchen and living areas.

Ideal Room Size for an L-Shape Kitchen

• Minimum room size: roughly 3.0 m x 3.0 m (10 ft x 10 ft). Below this, the two runs of units crowd the corner and leave little working space.
• Comfortable working room: 3.5 m x 3.5 m (11.5 ft x 11.5 ft) or larger gives you room for an island or a dining table nearby.

For an open-plan kitchen and living room setup, the L-shape is one of the most practical configurations — the corner anchors the kitchen zone while the open side flows into the living space. Planning an open-plan layout? See how the L-shape fits into an open-plan kitchen and living room design.

Corner Cabinet and Clearance Rules

Corner units are the trickiest part of any L-shape layout. Two things to check:

1. Corner clearance: The inside corner should have at least 60 cm (24 in) of clear worktop on each side of the corner unit to avoid the 'dead corner' effect where you can't reach anything.
2. Lazy Susan or pull-out unit depth: Corner carousel units typically need a 90 cm x 90 cm (36 in x 36 in) corner space to work properly. Confirm the exact spec with your kitchen supplier before finalising the corner.

U-Shape Kitchen Layout Dimensions

A U-shape kitchen wraps units around three walls, creating maximum storage and worktop space. It's the most efficient layout for a single cook — but it demands the most careful planning, because errors on one wall compound across the other two.

Minimum Room Width for a U-Shape Kitchen

• Absolute minimum between parallel runs: 1.2 m (48 in). Anything narrower and the kitchen feels like a cupboard.
• Comfortable working width: 1.5 m (60 in) or more between the two parallel runs of units. This is the measurement from the front face of units on one side to the front face of units on the other.
• Minimum room width: With two 60 cm (24 in) deep runs of cabinets plus a 1.2 m (48 in) gap, you need a room at least 2.4 m (8 ft) wide. A 3.0 m (10 ft) wide room gives a much more workable 1.8 m (6 ft) gap.

Planning the Opening Between Runs

The opening — the gap in the U where you walk in and out — should be wide enough to feel like an entrance, not a squeeze.

• Minimum opening width: 1.0 m (40 in) clear.
• If the opening has a door: The door swing eats into your working corridor, so account for that in your layout.
• Tall units and appliances on the back wall: The base of the U (the wall facing you as you enter) often works best for tall units like ovens, larder units, and integrated fridge-freezers — keeping them clear of the corridor while remaining easily accessible.

Island Kitchen Layout Dimensions

An island transforms a kitchen — more prep space, more storage, and often a social hub if you add seating. But it only works if the clearances are right. An island that's too big or too close to the surrounding units is worse than no island at all.

For a full breakdown of island sizing, seating overhangs, and placement rules, read the Kitchen Island Dimensions & Layout Planning Guide — it covers every measurement in detail.

Clearance Around a Kitchen Island

Think of the island as a piece of furniture surrounded by working corridors on all sides.

• Minimum clearance on all sides: 1.0 m (40 in). This is the non-negotiable floor for an island that can actually be used.
• Recommended clearance: 1.2 m (48 in) on sides where two people might work simultaneously, and on any side that faces an appliance with a door (oven, dishwasher, fridge).
• Traffic-only side: If one side of the island simply faces a wall and is never used for working, 0.9 m (36 in) is workable — but check that no appliance doors open onto that side.

Island Size and Seating Overhang Dimensions

• Minimum functional island size: 0.9 m x 1.5 m (3 ft x 5 ft). Smaller than this and it doesn't offer enough prep space to justify the loss of floor area.
• Seating overhang: For bar stools, the worktop needs to overhang the cabinet by at least 30 cm (12 in) — 38 cm (15 in) is more comfortable. Each stool position needs roughly 60 cm (24 in) of width along the island.
• Standard bar stool height: 63–76 cm (25–30 in) — confirm this matches your island worktop height before buying.

Single-Wall Kitchen Layout Dimensions

The single-wall layout — all units and appliances along one wall — is common in studio flats, extensions, and open-plan conversions. It's the most compact option but needs careful planning to stay functional.

• Maximum recommended run length: 3.6 m (12 ft). Beyond this, the distance between stations makes cooking inefficient.
• Minimum room depth: The room (or the space in front of the units) should have at least 1.2 m (48 in) of clear floor — ideally 1.5 m (60 in) — for comfortable use.
• Compensating for limited counter space: If your run is shorter than 3.0 m (10 ft), consider an island or breakfast bar opposite the units to add prep space. Keep appliances grouped — fridge at one end, cooker roughly central, sink within easy reach of both.

How to Apply These Dimensions in a Free Kitchen Planner

Once you have your room measurements and a layout type in mind, the next step is to plot it out — to scale, with real dimensions — so you can see exactly what fits before you commit to anything.

The free kitchen planner at Free Room Planner runs in any browser, needs no sign-up, and costs nothing. Here's how to go from blank room to shareable floor plan in four steps.

Step 1 — Enter Your Room Dimensions

Measure your room: length, width, and note the position of doors and windows. Enter those dimensions into the planner. Every wall snaps to a 10 cm grid, so the layout you draw is accurate by default.

Step 2 — Choose Your Layout Type and Drop In Cabinets

Select your layout — galley, L-shape, U-shape, island, or single-wall — and start adding cabinet units. Drag them into position along your walls. Use the standard depths from this guide (60 cm / 24 in for base units) to match real-world sizes.

Step 3 — Check Clearances With Live Measurements

This is where the tool earns its value. As you position units, the live measurement display shows the gap between facing elements in real time. Check your aisle width against the minimums in this article. Adjust until every clearance is within spec.

Step 4 — Export and Share With Your Fitter or Contractor

When the layout looks right, export it as a clean PNG floor plan. Send it directly to your fitter or contractor. They get an accurate, dimensioned layout — not a rough sketch — which means fewer surprises and a smoother installation. For guidance on capturing accurate measurements before you start drawing, see how to draw floor plans accurately.

Always check local building regulations for your specific project, particularly for kitchen extensions or structural changes.

Conclusion

Every kitchen layout has non-negotiable minimums — and the consequences of ignoring them range from awkward to expensive. A galley with a corridor that's 10 cm too narrow. A U-shape opening that's too tight to move through comfortably. An island that blocks the oven door. These are all fixable on screen before a single unit is ordered.

Get the numbers right first. Use this guide as your reference — come back to the section for your layout type whenever you need to check a measurement. Then take those numbers straight into the free kitchen layout planner and draw it out to scale. No account. No download. No cost.

Your fitter will thank you for it.