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Kitchen Island Design Ideas

Governing dimensionAisle clearance on every working face, measured before the island is sized
On this page
01  Clearance first02  Length, seats, overhang03  Sink, cooktop, services04  Storage on both faces05  Taking it to a drawing

An island is a set of clearances before it is a feature

Island decisions are made in plan, not in a showroom. Before anyone chooses stone or stools, the island has to answer three questions: how far it sits from the run behind it, how much bench edge each seat needs, and how far the top can cantilever before it needs support. Settle those and the finishes become a straightforward choice.

Length, seating and overhang

Seating is where most islands are over-promised. Three stools drawn on a plan often become two once the bench edge, stool width and the cook’s standing space are honest with each other. The overhang carries the same discipline: past a certain depth, stone needs steel underneath it, and that support has to be designed with the cabinetry, not added afterwards.

Bench edge per seatAllow roughly 600 mm of clear edge for each stool
Overhang depthAbout 300 mm for comfortable knees; shallower reads as a ledge
SupportConcealed flat bar or brackets once stone cantilevers beyond the carcass
AisleKeep the walking side wider than the working side, and check the dishwasher door in the open position
Sizing and edge profile are set with the top: see Kitchen Benchtops.
Dramatic contemporary kitchen with matte black cabinetry, walnut feature panels, a large black marble island, cylindrical rangehood, integrated sink, and open shelving.

Sink, cooktop and what runs underneath

Putting a sink or cooktop in the island changes the joinery, not just the layout. Waste and water have to reach the island through the floor, power has to arrive where the plan allows, and a cooktop brings extraction into the conversation. Each one also removes storage from beneath the bench.

01  Sink in the island keeps the cook facing the room; the bin drawer should sit beside it02  Cooktop in the island needs extraction and a clear zone between burners and seating03  Power is decided early: end panel, pop-up or a recessed strip under the overhang04  A slab floor makes waste routing the first thing to confirm, not the last
Service positions are locked during Custom Kitchen Design & Documentation.

Storage on both faces

An island has two long faces and two ends — and only the working face can hold anything deep. The seating side gives its depth to knees, so the storage you are counting on has to fit on the side you cook from.

In practice that means deep drawers over doors on the working face: one shallow drawer for utensils, two deep ones for pots and plates, all on full-extension runners, with the bin drawer beside the sink. The seating face is usually panelled flat, or takes 150-200 mm of open shelving where the overhang allows it. The ends are the only place an island stores anything vertically – trays, boards and baking sheets on edge.

More on drawer systems and dead space in Kitchen Storage Ideas and Pantry & Kitchen Storage Solutions.

Take the numbers to a drawing

An island that works on paper works in the room. Measure the clear width on both sides, count the seats you actually need, and decide whether the sink or cooktop is moving before any material is selected.

Read next
Kitchen Islands: Sizing, Seating & Services
The scope itself, from clearances to services
Kitchen Layout Ideas That Actually Work
Where an island belongs in the plan
Custom Kitchen Cabinetry, Made to Measure
Carcass, drawers and non-standard dimensions
Choosing a Kitchen Benchtop
Thickness, edge profile and join positions