The Zone Delineation System — a lean visual management tool that makes ownership, sequencing, and handover impossible to miss on site.
Six elements make it work:
- → Individual room signs — clear, local zone assignment
- → Trade sign-off areas — signatures and dates from every sub
- → Ground boundary markings — physical demarcation of zone borders
- → Regional zone maps — color-coded floor plans for the entire site
- → Documented trade handovers — verification before anyone crosses a boundary
- → Zone rules — Verify & Notify → Execute & Finish → Clean & Handover (10-min rule)
The principle behind it is simple:
“A clean site is safe,
and a safe site is a productive site.”
and a safe site is a productive site.”
Visual delineation → reduced conflict → increased flow → faster completion.
When trades know exactly where their work begins and ends —
and there’s a documented handover before the next crew steps in —
the rework disappears,
the finger-pointing stops,
and the schedule actually holds.
and there’s a documented handover before the next crew steps in —
the rework disappears,
the finger-pointing stops,
and the schedule actually holds.
What does your handover process look like on site?