Doors are rarely the critical path — unless ordered like an afterthought. Sequence them right and they arrive while paint dries.
What consumes the calendar
Colour approval is the silent extender: sample spray, client sign-off, then production. Lock RAL and sheen at demolition, not at install week. Custom colours add the sample loop; stock-palette repeats skip it.
The order point
Boxes can be ordered from drawings; doors should be ordered from verified site measurements once carcasses sit level — for refacing, from the survey day itself. That still lands fronts before finishing trades leave.
Buffer strategy
Split large projects: order long-lead pieces (tall doors, glass frames, textured runs) first, standard bases second. Phased delivery matches install order and shrinks on-site storage risk.
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