Last edited 01 Dec 2020


The New Rules of Measurement (NRM) are published by the Royal Institution of Chartered Surveyors (RICS) and prepared by the Quantity Surveying and Construction Professional Group. They provide a standard set of measurement rules for estimating, cost planning, procurement and whole-life costing for construction projects. Adopting a standard methodology such as NRM facilitates consistency and benchmarking and helps avoid disputes.

NRM is a suite of documents, comprising three volumes:

Together this suite of documents offers a cradle-to-grave approach to cost estimating, works procurement and post-construction procurement.

NRM 1 was initially published in March 2009. It has since been amended and the second edition was launched in 2012 to coincide with the publication of NRM2. The second edition became operative on 1 January 2013.

NRM3 was published in March 2014.

NRM2 was published in April 2012. It became operative on 1 January 2013 and formally replaced the Standard Method of Measurement, seventh edition (SMM7) on 1 July 2013.

NRM2 provides a set of detailed measurement rules for the preparation of bills of quantities or schedules of rates for the purpose of obtaining a tender price. It also deals with the quantification of non-measurable work items, contractor designed works and risks. Guidance is also provided on the content, structure and format of bills of quantities, as well as the benefits and uses of bills of quantities.

NRM2 is divided into three parts with supporting appendices:


Strictly speaking, NRM2 is a set of measurement rules rather than a classification system. However, it does provide a system of indexing. This system is a departure from both the common arrangement of work section (CAWS) and Uniclass, but it can be mapped against the them:

NB: The New Rules of Measurement are accompanied by the 'Black Book', the QS and construction standards. Together they provide a suite of tools to help the construction industry work more collaboratively and consistently.

For a comparison between NRM2 and of the Standard Method of Measurement see: Comparison of SMM7 with NRM2.

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