TinnerFlow™3rd YearMeasuring & Layout
Before laying out multiple parallel duct runs, establish a single verified control point — a column centerline or a surveyed benchmark — and measure every…
Before laying out multiple parallel duct runs, establish a single verified control point — a column centerline or a surveyed benchmark — and measure everything from it. This prevents accumulated error across the bank.
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.