What code standards does the Hood CFM & Make-Up Air calculator use?

It references IMC §507.2.10 · §507.1.6 · NFPA 96 for preliminary planning. Final sizing requires local AHJ and licensed professional approval.

Are these calculations a substitute for engineered drawings?

No. KitchenCodeCalc provides preliminary planning estimates only. Final design must be approved by the local Authority Having Jurisdiction and licensed MEP or trade professionals.

How do metro sponsor seats work on calculator results?

Each metro has one exclusive sponsor per trade. When you select a metro, the open or held sponsor seat for that trade appears on the results and printable spec sheet.

IMC §507.2.10 · §507.1.6 · NFPA 96

Commercial Kitchen Hood CFM & Make-Up Air Calculator

Size code-prescriptive exhaust CFM, listed-hood typical range, make-up air, grease duct size, and 6-inch canopy overhang from hood style, duty class, and dimensions. Printable MEP summary included. Preliminary planning only.

Inputs

Hood style

Cooking duty class

Hood length (ft)

Linear feet of hood. Double island: enter the island length once — the result covers both back-to-back sides.

Hood width (ft)

Cooking surface length (ft)

For IMC §507.1.6.1 6" overhang check

Cooking surface depth (ft)

Metro area

Results

Enter inputs to calculate.

Code basis: IMC §507.2.10 · §507.1.6 · NFPA 96. Values are planning estimates — confirm with manufacturer listings, local FOG/mechanical amendments, and your AHJ.