How to use this result
Use the same length units for quantity and unit cost. This is not a duct-routing or construction calculator.
Access
Cleaning access and fire-rated routing require qualified design.
Unit rates
Entered unit rates should come from local market information or project proposals.
Important: Commercial kitchen exhaust, makeup air, grease ducts, cooking appliances, gas systems, fire suppression, roof work, electrical work, food-premises requirements and cleaning obligations vary by country, province or state, municipality, building, appliance duty and adopted code edition. Qualified local professionals and the authority having jurisdiction must determine the required system, airflow, clearances, interlocks, fire protection, cleaning schedule and approvals. This website provides preliminary cost education only.