TinnerFlow™1st YearHangers & SupportsYELLOW · Check First
{\text{Cut Length}} = {\text{Drop Distance (Deck to Bottom of Duct)}} - {\text{Strut Profile Height}} + {\text{Take-up adjustment allowance for top/bottom nuts}}
{\text{Cut Length}} = {\text{Drop Distance (Deck to Bottom of Duct)}} - {\text{Strut Profile Height}} + {\text{Take-up adjustment allowance for top/bottom nuts}}
Rule of thumb: Measure from the concrete deck to your target bottom-of-duct elevation, add 2 inches for adjustment adjustments, and cut.
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.