Field dimension not matching shop drawing dimension

When field dimension and shop drawing dimension disagree, stop and verify before cutting, forcing, or installing.

Stop if

• The field dimension does not match the shop drawing. What do you want us to use?

Watch out

• Do not force shop-drawn duct into a field dimension that does not match.

Check

• Re-measure from the correct control point.
• Check latest shop drawing/revision.
• Look for field changes or missed finish thickness.
• Document the difference.
• Ask for direction before modifying.

Steps

• Re-measure from the correct control point.
• Check latest shop drawing/revision.
• Look for field changes or missed finish thickness.
• Document the difference.
• Ask for direction before modifying.

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