Torsion Engineering

Winding Springs

Below is a listing of information referring to the garage door installation industry. If you are a vendor looking to add a great new product to your line card, please contact Torsion Engineering direct.


Garage Door Manufacturers  

Ankmar Door -
Overhead Door -
Barcol door -
Clopay Door -
Crawford door -
Wayne-Dalton door -
General door -
Kinnear Door -
McKee Door -
Raynor Door -
Windsor Door -
International Door Association IDA -


Professional Industries
The International Door Association (IDA)  -
Door and Access Systems Manufacturers Association (DASMA)  -


             Torsion Engineering - 2121 Goldfinch Ave - Rock Rapids, IA 51246 - 605.553.5403