Treat 30 m as an engineering decision
Large clear spans should be selected from operating need and verified design inputs, not from a catalogue headline alone.

Coordinate doors, walls and services
Large halls often need vehicle doors, hard walls, HVAC, lighting, drainage and fire-planning interfaces. These items should appear in the same layout and responsibility schedule.

Plan installation before production
Access for trucks and lifting, temporary work zones, ground readiness and weather windows can affect the feasible module and delivery programme.
