How much clearance does a kitchen island need?
A kitchen island needs 100–110 cm of clear aisle for one person working, 120 cm where two people work or where the aisle is also a route through the room, and at least 110 cm in front of an oven, dishwasher or fridge that opens into it. 90 cm is the absolute floor: at that point the drawing still works, the kitchen does not.
Krizbai András · Last verified: August 2026
Island clearance is measured between cabinet fronts, not between walls. Handles, projecting worktop edges and the island's own overhang all eat into it. Planning from wall-to-wall dimensions typically loses 5–8 cm, in exactly the place where there is nothing to spare.
The numbers come from door leaves, not from comfort. An open dishwasher door takes roughly 55–60 cm off the space in front of it; an oven door is similar; a fully extended deep drawer takes about the same. Add a person crouching to load it and you need another 40–50 cm. That is why 110 cm is the minimum in front of any appliance that opens — the question is not comfort but whether the appliance can be opened while the units opposite remain usable.
120 cm is the right figure for two people, because both aisles have to work at once. If someone pulls out a drawer on one side, the other person has to pass behind them. The National Kitchen & Bath Association guideline gives 42 inches (107 cm) for a one-cook work aisle and 48 inches (122 cm) for more — so 110–120 cm is standard international practice, not caution. A pure walkway where nobody works can drop to 90 cm.
For a kitchen used from a wheelchair the figure is a different order: a 150 cm clear turning circle, per the German accessibility standard DIN 18040-2. This cannot be retrofitted — if it may apply to a project, the island is sized for it on the first plan.
In Ren Design's construction drawings, island clearance is settled in the joinery drawings, not on the floor plan. Worktop thickness, handle type and appliance door leaves all shift the final dimension, which is why every appliance and joinery element is coded from concept stage, and why the joinery drawings and the floor plan come from one model.
When sizing a kitchen island, avoid these: planning from wall dimensions rather than cabinet fronts; placing a dishwasher and a deep drawer bank directly opposite each other; sizing the island to the worktop slab instead of to the movement space around it; and putting bar seating on the side that is also the work aisle — a chair pulled back takes a further 60–70 cm.
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