A rectangular duct flange lip was cut too short for the S-cleat

S-cleats need enough flange lip to bite. If the lip is trimmed too short, remake the end or add an approved connection fix before the joint is installed.

Stop if

• You trimmed that connection flange lip too short-it's barely catching the edge of the S-cleat pocket. Maintain a clean half-inch flange extension on your cut lines so the joint locks together secure.

Watch out

• Do not send up a duct end that barely catches the S-cleat pocket.

Check

• Check flange lip depth around the full opening.
• Test the S-cleat fit before the piece goes up.
• Look for short spots caused by crooked snips.
• Do not force a cleat that barely catches.
• Ask whether to remake, re-edge, or use an approved alternate connection.

Steps

• Check flange lip depth around the full opening.
• Test the S-cleat fit before the piece goes up.
• Look for short spots caused by crooked snips.
• Do not force a cleat that barely catches.
• Ask whether to remake, re-edge, or use an approved alternate connection.

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