The situation
ARMAC supplied a full construction document pack for a major industrial factory at funding stage. No contractor rates had been returned, but the client needed a defensible cost position and a clear comparison between the base build and an expanded operating option.
The estimating challenge
The options shared a substantial common scope. Treating the expanded option as a separate total risked counting pavement, structure and services twice. The estimate also needed to distinguish documented quantities from design-dependent allowances, keep missing engineering visible and produce cost evidence that could support a construction-grant application.
- Separate the common factory scope from the net option increment
- Price the building, external works, office fitout, services and enabling works
- Keep supplier-dependent and unresolved design items visible
- Turn the result into a client-ready funding and procurement document
What EstiFlow did
EstiFlow read the complete document set, measured the common factory position and built a separate net increment for the expanded option. The commercial report explained the two operating cases, the packages driving cost, what remained provisional and which decisions had to close before tender. The BOQ and procurement workbook carried the detailed quantities and package values behind that narrative.
Why the result was useful
ARMAC received a complete commercial position it could put in front of the client without rebuilding the analysis. The options were comparable, the next information requests were prioritised and the same pack supported the grant-costing conversation and the next round of trade procurement.