⚙️ DASMA Guidelines (25,000-100,000 High-Cycle Springs), Wire Gauge & Pre-Wind

Sectional Overhead Door Torsion Spring Calculator

Size heavy-duty oil-tempered torsion springs for commercial overhead sectional doors under DASMA standards: calculate door deadweight (lbs based on 24-ga insulated steel sections), wire diameter (0.250" to 0.437"), mean spring diameter (2-5/8" to 6"), number of active coils, initial pre-wind tension turns, and door repair contractor margins.

1. Project & Operating Inputs

Commercial Doors Serviced (Door Count e.g. 14 Doors)

Door Section Weight (Lbs e.g. 380 Lbs Sectional Door)

Customer Bid Price for 50k High-Cycle Spring Overhaul ($ / Door)

Duplex High-Cycle Torsion Springs, Cones, Bearings, Tech ($ / Door)

2. Financial Breakdown & Yield

DASMA TORSION SPRING SIZING

Turnkey Spring Replacement Profit

Commercial Door Contractor Margin

0.0%

Gross Revenue / Bill

Total Project CapEx

Operating / Material Cost