Layout & Coordination · Compound offset
Lay out horizontal and vertical shift
Square Duct Installation — Two-plane obstacle
Task typeCompound offset
Tools / equipmentLaser, tape, sketch pad
How to install it
- 1
Record both target coordinates
- 2
establish start/end centerlines
- 3
create dimensioned field sketch for fabrication.
Quality check
- All four planes/dimensions shown
- fitting orientation clear
Stop and verify
Stop before field fabrication without approval