Bills of quantities for infrastructure

Most bills of quantities are produced using software packages, each with their own format for inputting dimensions and formulating descriptions. But knowledge of measurement conventions is still useful in order to fully understand and appreciate potential problems in the measurement process.

Measurement practice applied to buildings must be accurate and consistent as even a medium-sized project will generate a large amount of drawn documentation. This will be passed to the quantity surveyor (QS) for measurement. It is then for the QS to manage the measurement process and determine the presentation style for the bill of quantities.

The bill of quantities will allow for a direct comparison between contractors pricing on a project, but also provides a basis for post-contract management, including:

  • re-measurement/admeasurement
  • final account preparation
  • interim valuations and
  • audit.

This section is maintained by Duncan Cartlidge.