- 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.
- 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.
- 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.