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Guides for contractors who fabricate what they install

Muthari guides · ten field notes on running a package from award to handover

A specialist contractor runs a factory and a site at the same time, and almost every expensive problem happens in the gap between them. These ten guides work through that gap one piece at a time — how a submittal register behaves when the consultant is slow, what a stage gate actually is, what happens when Rev 04 lands after the saw has started, and why a progress claim should be able to argue for itself. They are written for the people doing the work: the engineer, the storekeeper, the QC inspector, the QS. None of them is a product tour.

Getting the record right

The hidden cost of status chasing

Reported vs derived status, the human search engine, and why WhatsApp groups lose the truth — what status chasing really costs a contractor.

Stage gates: the system says no

What a stage gate is versus a reminder, the six gates from take-off to claim for a fabricate-and-install package, and how to live with them.

Specialist vs general contractors: why the software is different

How specialist contractors differ from general contractors — a factory and a site, batches, stages, zones, claims — and why the software must be different.

Engineering and drawings

Submittals: the register the consultant answers to

Shop drawing and material submittal workflow: one append-only register, response ages, gates, and the MIR/WIR culture of consultant-led GCC projects.

Rev 04 arrived. The factory was cutting Rev 03.

When a shop drawing is revised after fabrication starts: what the record must hold — the built-to revision on every stamp, and superseded means stop.

Material, procurement and the store

From take-off to purchase order: closing the loop

Material requisition to PO: take-off, request, approval, order, receipt — and the catalogue discipline that stops material being bought twice or never.

Material traceability for contractors who fabricate and install

The seven-hop chain from supplier to installed zone, what to record at each hop, and a self-audit checklist for contractors who fabricate and install.

Factory, site and money

Breaking a BOQ into zones

How to break a BOQ into zones: one label and one quantity per zone, rooms and elevations as zones, and why the breakdown freezes at the contract quantity.

Where façade projects lose money: between the factory and the site

Façade projects lose money between factory and site, at five moments nobody writes down: issue, stage, dispatch, receipt and installation.

Claims that argue for themselves

Progress claims that carry their own evidence: previous quantities derived from the last invoice, receipts and inspections attached, variations recorded.

Elsewhere on Muthari

What is construction project management software? · What is construction operations software? · Why specialist contractors are different · Glossary — vendor-neutral definitions of GRN, WIR, MIR, NCR, BOQ and MTO · The modules — how engineering, procurement, store, production, logistics, site, quality and commercial connect · Comparisons — Muthari OS beside Excel, an ERP, Primavera P6 and general construction platforms · Pricing

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