- Structural renovation scope
- Combining bays or resizing the opening adds coordination with beam, post, framing, finishing, electrical, design, and municipal requirements outside ordinary door replacement.
- Counterbalance system
- Door weight, height, drums, shaft arrangement, lift type, and spring cycle choice determine the torsion components and setup needed for balanced movement.
- Jamb and framing condition
- Sound mounting faces support accurate anchorage. Split lumber, weak blocking, deteriorated material, or unfinished structural changes may require coordinated preparation before door installation.