- Counterbalance system
- Door weight, height, drums, shaft arrangement, lift type, and spring cycle choice determine the torsion components and setup needed for balanced movement.
- Required design pressure
- The project's inward and outward pressure criteria shape which complete door assemblies are suitable, including their reinforcement, tracks, hardware, and attachment details.
- Insulation and finish
- Thermal construction, interior backing, panel profile, exterior colour, decorative elements, and corrosion-resistant finishes determine the selected door sections and related hardware.