- Project plans
- Project activities
- Legislation and standards
- Industry context
- Specialist wikis
Last edited 08 Oct 2020
The term ‘admeasurement’ is thought to have originated in the ICE Conditions of Contract measurement clauses, where it referred to establishing the difference between the final quantity of work carried out and the quantity originally anticipated.
There is a subtle difference between admeasurement and remeasurement, in that remeasurement refers to the entire process of measuring again the quantities of work undertaken, whereas admeasurement refers only to the difference between the estimated quantity and the actual quantity.
Rates are provided in the contractor’s tender, either as part of the priced bill of quantities, or within a schedule of rates. Then the actual quantities of work carried out are measured and the rates applied to those quantities. The contractor is paid for the actual work they have done. As a result, the quantities paid for may vary from the original estimates.
This is common in situations where the type of works required can be described in reasonable detail, but the amount cannot. For example, excavation works where the quantity of excavation required is difficult to assess until after the works have begun.
Where there is just a schedule of rates, rather than a bill of quantities, approximate quantities may be provided to allow the contractor to estimate the amount of work required, but there is no guarantee that that quantity will be required, and so appropriate rates are sometimes difficult to determine.
 Find out more
 Related articles on Designing Buildings Wiki
Featured articles and news
BSRIA explores US share of 2020 VRF market.
New fire safety requirement comes into force.
Different types of bridges are meant to move.
A logical approach to handling the internal voice of self doubt.
First fashionable in the US, decorative metal has become globally desirable.
Helping communities preserve and enhance historic environments.
Creating comfortable climates despite extreme temperatures.
Study examines how adjustable arrangements can succeed.
Government announces plans to improve accessibility.
Resource addresses pandemic-related NEC4 contract issues.
Incorporating EDI into the provision of fair access.
Government announces global innovation strategy.