How to Size a Range Hood for a 36 Inch Range?

A 36-inch range is the widest common residential cooking surface, and an undersized hood is the mistake that shows up first in a smoky kitchen. Three measurements decide your purchase: hood width against the cooking surface, vertical clearance above the burners, and the airflow needed to clear the room.

What Width Hood Do You Need For A 36 Inch Range?

Whirlpool says a range hood should be at least as wide as the stovetop, and that extending roughly 3 inches past each side captures steam and grease far better — pushing the sweet spot for a 36-inch range to a 42-inch hood.

KitchenAid notes hoods are most commonly sold in 24, 30, and 36-inch widths, with models up to 60 inches. A 36-inch hood lines up exactly with a 36-inch range — the accepted floor, not the ideal.

• 36-inch hood: matches the range edge-to-edge. Workable, minimal overhang.
• 42-inch hood: adds about 3 inches of overhang per side. The common recommendation for better capture.
• 48-inch or wider: typically reserved for high-output or oversized cooking surfaces, or where cabinetry allows.

Measure the cooking surface, not the cabinet opening. Range width drives hood sizing; cabinet width is a cabinetry constraint, not a capture one.

How High Should A Range Hood Sit Above The Cooktop?

KitchenAid cites a typical clearance of 24 to 36 inches between the hood bottom and cooktop, with working minimums of 24 inches above electric and 27 inches above gas.

Too low crowds the cooking surface and risks heat and fire clearance problems. Too high drifts the capture zone from the rising plume — the fan runs, the steam escapes. Height and width work together: a wider hood tolerates a slightly higher mount because more canopy sits over the plume.

Coverage dimensions matter too. Whirlpool lists common canopy hoods at 30 to 36 inches wide, 24 to 26 inches deep, and about 28 inches high, so depth is nearly as important as width for reaching front and rear burners. Installation height also depends on ceiling height and wall versus island mounting, and some configurations call for 30 to 36 inches.

What CFM Does A 36 Inch Range Actually Need?

The gap comes from fuel type, not width.

The two sizing rules:

• Electric / induction: roughly 100 CFM per linear foot of cooktop width.
• Gas: about 1 CFM per 100 BTU/h of total burner output.

Add 30% to 50% more airflow for an island hood, which has no side walls to contain the plume.

Once you’ve landed on a width and airflow target, comparing the actual tested 36-inch wide range hood options makes the final pick faster than re-deriving the math per model.

What Else Decides Whether It Works?

Width and CFM are the headline specs, but install details can undo both. Whirlpool and KitchenAid both point to manufacturer instructions as the governing document for each model.

• Make-up air: systems above 400 CFM often trigger local make-up air rules; a hood that can’t pull replacement air underperforms.
• Duct path: some 36-inch wall hoods list 6-inch duct, but required size varies by model, and length plus bends cut effective airflow.
• Fuel type: a gas range of the same width needs roughly double the CFM of an electric one.
• Clearance compliance: follow both the hood maker’s install sheet and the cooktop’s required clearance range — fire and heat limits are not negotiable.

Local code, clearance, and make-up air requirements vary by state and jurisdiction, so confirm final numbers with your installer or local authority before cutting a duct run. The sizing logic above holds in U.S. residential kitchens; the code layer is where it gets local.