Does a grease duct elbow need a cleanout access door?

A grease duct change of direction needs cleanability/access per the approved code/detail. Do not close the shaft or wrap the duct until cleanout access is verified.

['Grease duct is not just air duct. It has to be inspected, cleaned, and maintained. If an elbow/change of direction has no cleanout or access method, the system may be impossible to clean after construction.', 'Check the grease duct drawings, hood submittal, NFPA/code requirements as adopted by the job, and manufacturer/listing for the access door. Likely recovery is adding an approved cleanout/access door in the correct location before the duct is wrapped or enclosed.']

Stop if

• Use this as training guidance. The foreman, approved drawings, project specs, manufacturer installation instructions, employer safety policy, and AHJ/code requirements always control the final answer.

Check

• Missing cleanouts can fail inspection, block cleaning, and create fire/maintenance problems.

Steps

• Locate every change of direction and low/collection point in the grease duct run.
• Check approved drawings and grease duct/access door submittals.
• Verify that access doors remain reachable after wrap, shaft, ceiling, or wall closure.
• Confirm the door type/listing and seal method before cutting welded duct.
• Take photos before closure for inspector/fire marshal documentation.

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