Category: Quantities & pricing
Prepared by Eng. Ahmed Fathy, Projects Manager ·
Definition
A method of measurement is the set of rules for how each quantity is measured: what openings are deducted, the unit, and what is included in an item without separate measurement. Well-known ones include POMI, NRM and CESMM.
Why it matters on a project
A clear method in the contract prevents disputes at payment over what is and is not paid.
Common mistake
Deducting small openings in the take-off when the method says not to, or the reverse.
Frequently asked questions
Which method of measurement is used in Saudi Arabia?
The contract decides; POMI is common in the region and NRM on some projects, and the one named in the documents applies.
What if the contract names none?
Agree one in writing before pricing, or it becomes a dispute at every payment.
Related terms
- Quantity take-offExtracting quantities from drawings under defined measurement rules, with a reference for every figure.
- Bill of quantities (BOQ)A list of work items with description, unit and quantity, priced item by item.
- Re-measured contractA contract paid on actually executed quantities multiplied by unit rates.
- Payment application (IPC)A periodic payment request based on approved progress and executed quantities.
Read next
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