EAGLEBUILT AI
Outdoor kitchen clearances
Island size decides whether your equipment fits. Clearance decides whether the kitchen is safe and pleasant to cook in. Get these wrong and you are bumping hips, scorching siding, or fighting a fridge door that will not open.
The clearances that matter
Walkway behind the cook
At least 36 inches of clear space behind the island. Make it 42 to 48 if two people will cook back there or guests pass through to seating. Below 36 someone has to turn sideways to get by a person carrying something hot.
Landing space beside the grill
At least 12 inches of counter on one side, and ideally 18 to 24 on both. This is also what sets the minimum island length — see how long the island should be.
Grill to side burner
Do not butt them together. Leave working counter between them so two pots and a grill can run at once, and honour each manufacturer’s own side-clearance spec, which differ more than people expect.
Fridge door swing
Check the door opens fully without hitting seating, a wall or a neighbouring appliance door. Front-venting fridges also need their grille left clear — blocking it is how an outdoor fridge dies in its first summer.
Distance to the house
The grill manual sets the minimum to combustibles — siding, fencing, overhangs — and it is often well over a foot. Local code can be stricter, especially on multifamily or zero-lot-line properties.
Overhead
Never put a grill under a low roof, pergola or tree without checking the manual’s overhead clearance. A covered cook area usually needs a properly sized vent hood, and an open-slat pergola is treated differently from a solid roof.
Open the grill’s installation manual before you draw anything. Find the clearance diagram and mark those distances on your plan — they shape where everything else can go, and they are the one set of numbers no builder gets to override.
A CMU island does not need an insulated jacket
Insulated grill jackets exist because a firebox sitting inside a combustible frame needs a barrier between the heat and the structure. Wood-framed islands generally require one, and skipping it is both a fire risk and a warranty problem.
We build in CMU with a poured concrete counter. That assembly is non-combustible, so the jacket requirement usually falls away — one less part to buy and one less thing to get wrong. Confirm it against your specific grill’s manual all the same, because a few manufacturers require a jacket regardless of what the island is made of.
More on the structural trade-off: CMU vs steel stud framing.
Clearance decisions move the budget
Building tight to the house or under a cover tends to add cost: an insulated jacket where the enclosure needs one, a vent hood for a covered cook area, upgraded materials near combustibles. Choosing the location with clearances in mind can remove those line items before they exist.
Utility runs are the other one. Gas, electrical and water cost far less to run before the island is built than after, and that work is usually what triggers a permit. See what an outdoor kitchen costs for the per-linear-foot numbers.
Common clearance questions
How much space do I need behind the island?
At least 36 inches of clear walkway, and 42 to 48 if two people will cook or guests walk through. Below 36 inches someone has to turn sideways to pass a person holding a hot tray.
How close to the house can I build?
The grill manufacturer sets the minimum, not the builder. Every built-in grill lists a clearance to combustibles in its installation manual, often well over a foot, and local code can be stricter. Check both before choosing the spot — moving the island later means moving gas and electrical with it.
Does a CMU island need an insulated grill jacket?
Usually not. The jacket exists to separate a firebox from a combustible frame, and CMU with a poured concrete counter is non-combustible. Confirm against your grill’s manual, since a few manufacturers require one regardless.
Can the kitchen go under a pergola or patio cover?
Often, but the manual sets a minimum overhead clearance and a covered cook area usually needs a properly sized vent hood. An open-slat pergola is treated differently from a solid roof.
See the spacing before you build it
The free 3D design tool lays out your island with real components and their published cutout dimensions, so you can see what sits next to what before anything is poured. Moving a grill on screen is free. Moving it after the countertop is in is not.
Working out sizes first? Start with dimensions, or get one project explained each week in the newsletter.