Category 02
Measurement and BIM take-off
NRM2, bills of quantities, model based take-off and the audit trail behind a defensible number.
Remeasurement contracts and where they bite
A remeasurable contract gives you competitive rates and no fixed price. That is sometimes exactly right and frequently misunderstood.
Read 15 May 2025What a bill of quantities is actually for
Bills of quantities are described as old fashioned by people who have never had to value a variation without one.
Read 14 Mar 2024Measuring from an incomplete drawing set
Every measurement from an unfinished design contains assumptions. The only question is whether the reader can see them.
Read 01 Feb 2024Checking a contractor's quantities at tender
On design and build the contractor measures their own work. That does not mean the client has nothing to check.
Read 20 Oct 2022Builder's work in connection, the forgotten measure
It appears on no drawing, sits in no model, and has to be done on every project. That combination makes it the most reliable omission in...
Read 08 Sep 2022Provisional sums, defined and undefined
Two provisional sums of identical value can have entirely different consequences, and the difference is a single word in the bill.
Read 15 Oct 2020BIM quantity take-off, what the model does not contain
Model based measurement is faster and more consistent than manual take-off. It is also confidently wrong in ways that manual measurement rarely is.
Read 27 Aug 2020NRM2 explained for developers
Most developers never read a measurement standard and have no reason to. Understanding what it does is another matter, because it decides what...
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