TinnerFlow logoTinnerFlow™
Mistake & recovery · #008

Measuring from the wrong reference point on the tape (the hook gap error)

1st YearMeasuring & Layout

Understand that the hook slides by exactly one thickness to self-compensate for inside vs outside measurements. For critical dimensions, use a hard stop r…

Search Field RescueAsk ForemanOpen in mistake guide

Safer field move

Understand that the hook slides by exactly one thickness to self-compensate for inside vs outside measurements. For critical dimensions, use a hard stop rather than the hook.

Ask Foreman

Can you verify this before I keep going? I’m looking at: Measuring from the wrong reference point on the tape (the hook gap error). What’s the approved correction for this job?

Do not

Do not hide, force, cover, or “make it work” if this affects safety, access, airflow, rated assemblies, supports, equipment, or inspection. Stop and verify the approved correction.

Related mistakes

Related apprentice questions