TinnerFlow™Rough Duct Weight Estimator
Estimate sheet-metal skin weight for planning conversations. This is not a rigging, lift-capacity, hanger, anchor, or structural-load calculator.
Enter the duct size and length.
Do not use this result to approve a lift or support. Verify actual fabricated weight, accessories, machine load limits, manufacturer information, rigging plan, and employer/site procedures.
What is not included
- Flanges, corners, cleats, drives, reinforcement, and tie rods.
- Liner, wrap, jackets, dampers, access doors, sensors, and hardware.
- Cradles, carts, lift occupants, tools, or rigging equipment.