The buying brief

Track plant hire cost against productive work

Build a practical hire register that separates billed time, meter usage, productive work, transport and approved variations.

A hire register is most useful when it connects commercial records to the work programme. Track what is billed, what the meter records and what the machine was assigned to do. Those are related measures, but they are not interchangeable.

Give every hire a consistent record

Use the order reference, supplier, machine identifier, location, start date and agreed charging basis. Add included hours, excess usage, attachments and transport. Keep the accepted offer linked to the record so someone else can understand the assumptions.

Assign an owner for updating the record. A register maintained only when an invoice arrives loses the opportunity to catch an unnecessary extension or an unresolved variation while the hire is still active.

Separate hours from outcomes

Record meter readings through the agreed site process and note the work package served. If the team tracks productive time, define what it means and how it is recorded. Do not label all elapsed hire time as productive output.

Use interruptions to explain the record rather than to allocate blame automatically. Waiting for access, weather, planned servicing and mechanical faults are different events. Follow the agreed reporting process and retain the supplier's response where relevant.

Example: an idle finishing machine

A machine remains hired after its main task because several small finishing jobs are expected. The register shows the planned tasks, likely dates and ongoing charge. Compare retaining it with returning it and arranging a later hire, including additional transport.

This makes the decision visible without assuming one answer always wins. Availability, minimum charges and programme certainty matter. Record the chosen assumption and review date so an open-ended hire does not continue by default.

Reconcile and learn

Match invoices to the billed period, agreed usage and approved variations. Keep estimated future charges separate from actual invoiced costs. Flag gaps while the supporting information is still available to both teams.

After return, note what changed from the original forecast. Repeated transport or excess-hour surprises suggest a weakness in the enquiry assumptions. Use the evidence to improve the next brief rather than relying on a remembered headline rate.

Common questions

Are meter hours the same as productive hours?

No. Define each measure separately. Meter usage, billed time and completed work describe different parts of the hire.

What should be reviewed weekly?

Check continued need, forecast return date, usage against the allowance, unresolved variations and invoice discrepancies.

Field note

This guide is general information to help you prepare a better enquiry. It is not engineering, legal or safety advice. Equipment selection, engineering and safe systems of work remain the responsibility of competent project and supplier teams, and regulatory requirements differ between states and sites.

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