Layout & Coordination · Top elevation
Lay out top-of-duct
Square Duct Installation — Tight plenum
Task typeTop elevation
Tools / equipmentLaser, calculator, tape
How to install it
- 1
Use structural datum
- 2
calculate top elevation including insulation and reinforcement
- 3
mark required clearance.
Quality check
- Insulation/reinforcement included
- access maintained
Stop and verify
Stop if actual beam depth differs