A kitchen layout decides how far you walk while cooking, whether two people can work at once and how much counter and storage you get from the same floor area. Most kitchens are variations of five basic plans: one-wall, galley, L-shaped, U-shaped, and plans built around an island or peninsula. This guide compares them and applies the planning guidelines published by the National Kitchen & Bath Association (NKBA), the industry body for kitchen design. The NKBA figures are recommendations; local building codes always take priority.
The work triangle and work centres
NKBA defines three primary work centres: the cooking surface, the cleanup/prep sink and refrigeration. In a kitchen with three work centres, it recommends that the three distances between them total no more than 26 feet, with no single leg shorter than 4 feet or longer than 9 feet, measured from the centre front of each appliance or sink. It also recommends that:
- No leg of the triangle cuts through an island or peninsula by more than 12 inches.
- No major traffic route crosses through the triangle.
- A full-height, full-depth obstacle such as a tall pantry or oven cabinet does not separate two primary work centres.
Modern kitchens often add a second sink, a wall oven or a beverage area, so designers increasingly think in work zones rather than a single triangle. The triangle is still a useful check on walking distance. See workflow and ergonomics.
The five basic layouts
| Layout | Description | Best for | Watch for |
|---|---|---|---|
| One-wall | All cabinets and appliances on one wall | Small apartments, open-plan spaces | Limited counter; no true triangle, so keep the sink between the fridge and cooktop |
| Galley | Two parallel runs with an aisle between | Narrow rooms; efficient for one cook | Aisle width; through-traffic if both ends are open |
| L-shaped | Two runs meeting at a corner | Medium rooms; works with a table or island | Corner cabinet access; long legs can stretch the triangle |
| U-shaped | Three runs around the cook | Lots of counter and storage; one main cook | Two corners; enough width between opposite runs |
| Island or peninsula | Adds a free-standing or attached counter | Extra prep space, seating, a second work centre | Clearances around it; the triangle crossing it |
Each layout has a dedicated guide in layout types.
Galley kitchens
A galley puts everything within a few steps, which is why it is popular in restaurants and small homes. The key decision is aisle width: NKBA recommends at least 42 inches for one cook and 48 inches where more than one person cooks, measured between counter fronts, tall cabinets or appliances. Too wide an aisle loses the efficiency; too narrow and open dishwasher and oven doors block the room. If the galley is also a passage between rooms, consider closing one end or moving the main traffic route.
L-shaped kitchens
The L opens the kitchen to a dining area and keeps traffic outside the work zone. Put the sink and cooktop on different legs or with enough landing area between them, and plan the corner cabinet carefully: NKBA recommends that at least one corner cabinet include a functional storage device such as a pull-out or rotating shelf.
U-shaped kitchens
The U gives the most continuous counter. NKBA’s work aisle figures still apply between opposite runs. Its access standard recommends a minimum of 60 inches between opposing arms of a U-shaped kitchen for wheelchair users, which is also comfortable for two cooks.
Islands and peninsulas
An island adds prep space, storage and often seating. Check:
- Aisles around it: at least 42 in or 48 in on working sides, and at least 36 in for walkways.
- Seating clearance: NKBA recommends 32 in behind seated diners where nobody passes, 36 in to edge past and 44 in to walk past.
- Knee space per diner: 24 in wide, with 18 in deep at 30 in tables, 15 in at 36 in counters and 12 in at 42 in counters.
- Cooktops on islands: NKBA recommends the counter extend at least 9 in behind a cooktop at the same height, for safety.
A peninsula, attached at one end, gives similar benefits where there is no room for walkways on all sides.
Landing areas: the counter beside each appliance
A landing area is counter space where you can set things down next to an appliance. NKBA’s recommendations include:
| Work centre | Recommended landing area |
|---|---|
| Cleanup/prep sink | At least 24 in on one side and 18 in on the other |
| Main prep area | A continuous section at least 36 in wide and 24 in deep next to a sink |
| Cooking surface | At least 12 in on one side and 15 in on the other |
| Refrigerator | At least 15 in on the handle side (or alternatives such as within 48 in across) |
| Microwave and oven | At least 15 in next to, above or below (oven: within 48 in across if it does not open into a walkway) |
| Dishwasher | Within 36 in of the cleanup sink, with at least 21 in of standing space beside it |
NKBA also suggests about 158 inches of total countertop frontage, 24 inches deep, to cover landing areas, prep and storage in a typical kitchen.
Choosing a layout for your room
| Room shape | Layouts that usually work |
|---|---|
| Long and narrow | Galley or one-wall plus a narrow island if the width allows aisles on both sides |
| Square, medium | L-shaped with island, or U-shaped |
| Open-plan living area | One-wall or L-shaped with an island facing the living space |
| Large | U- or L-shaped with island; consider a second sink to create two work zones |
Small and narrow rooms have their own challenges; see kitchen size.
Safety in the layout
NKBA’s planning guidelines include several layout-level safety recommendations: do not place the cooking surface under an operable window, avoid flammable window treatments above it, keep a fire extinguisher near the kitchen exit away from the cooking equipment, and specify clipped or rounded countertop corners rather than sharp edges. Doors should not interfere with appliances, and appliance doors should not interfere with one another.
Layout checklist
- Measure the room, including windows, doors, radiators and where plumbing and gas enter.
- Mark traffic routes and keep them out of the work triangle.
- Check aisle widths with appliance doors open.
- Give every appliance a landing area.
- Plan corner storage; see kitchen storage planning.
- Plan lighting for each work surface; see kitchen lighting plan.
- If the home was built before 1978, remember that moving walls or cabinets can disturb lead-based paint; the EPA requires paid contractors doing that work to be lead-safe certified.
- Confirm codes and permits before demolition; see planning a kitchen remodel.
All layout guides are under Kitchen Layouts.
