Torsion SKU Match
Calculate SSC-equivalent torsion specs and surface stocked left/right SKUs with review notes.
Door & spring
DDM Standard Torsion
Run the DDM standard-lift door-weight path separately from the SSC workbench, then recommend matching Shopify torsion variants.
Door & spring
DDM Existing Torsion
Mirror the measured-spring side of DDM's standard torsion database with visible IPPT, lift, and stocked Shopify matches.
Measured spring
DDM Model Lookup
Capture DDM's manufacturer/model lookup path separately; hidden model tables route to review unless an exact Shopify SKU is supplied.
Door model
DDM Spring Conversion
Convert existing standard torsion springs to a new spring count while preserving total IPPT.
Existing & replacement
DDM Matched Pair
Find a matched replacement pair from two unmatched measured torsion springs by summing lift/IPPT and dividing by two.
Unmatched springs
DDM ID Converter
Convert one torsion spring inside diameter to another while preserving wire length and spring work.
Spring conversion
DDM Cycle Range
Calculate DDM's desired spring cycle range from daily door usage and selected service-life bucket.
Usage target
DDM Extension Springs
Use DDM's extension spring sizing rule, including selecting the lower stocked pull when between ratings.
Door & spring
DDM One-Piece Extension
Handle DDM's one-piece single panel extension spring selector with the measured length, wire, ID, and end styles.
Measured spring
DDM EZ-Set
Handle EZ-Set as its own DDM lookup path and block unsafe standard-torsion substitutions.
Lookup inputs
DDM Hardware Kit
Estimate the rough custom hardware kit quote from DDM's published validation limits and price rule.
Door package
DDM TorqueMaster
Keep the DDM TorqueMaster lookup separate while still recommending stocked Shopify variants by height, system, and weight range.
TorqueMaster setup
DDM High Lift
Estimate DDM high-lift dimensions and support placement separately from the SSC drum-table calculator.
High-lift estimate
Commercial Torsion
Generate DDM-style commercial spring SKUs from measured ID, wire, and length, then check Shopify inventory.
Measured spring
DDM Self-Storage Roll-Up
Resolve self-storage roll-up door springs from DDM's measured ID, wire, length, wind, and mini-warehouse end style.
Measured spring
DDM Steel Rolling Door
Resolve steel rolling door torsion springs from DDM's measured ID, wire, length, end type, and gapped status.
Measured spring
Spring Conversion
Convert field measurements into replacement dimensions and stocked SKU candidates.
Measured springs
IPPT Solver
Solve engineering values from required IPPT and turns without forcing a product recommendation.
Engineering inputs
Extension SKU Match
Estimate pull and match extension inventory by door height, end style, and rated weight.
Extension inputs
Pull Estimator
Calculate extension pull from field measurements using ID or OD.
Field measurements
Torquemaster Match
Map Wayne Dalton Torquemaster selections to inventory by type, height, system, and weight range.
Torquemaster inputs
Rolling Steel
Calculate MIP, IPPT, initial turns, and spring dimensions for rolling steel jobs.
Rolling steel inputs
Door Weight From Spring
Back-calculate door weight from installed spring data and selected drum geometry.
Installed spring
Drum Data
Inspect extracted SSC drum specs and compatibility by lift family.
Drum selector
Reference Tables
Quick internal lookup for OD-to-ID conversion and standard spring references.