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BG 84/2024 Space and Weight AllowancesFebruary 2024

BSRIA’s Space and Weight Allowances guide provides useful information for the early stages of design. Graphs are provided on areas, heights and weights of mechanical, electrical and public health equipment. Information is also included on floor space allowances, space for access, occupancy densities and means of escape.

Download the sample preview to view the full table of contents.

This guide partly replaces BG 9/2011 Rules of Thumb 5th Edition. Information has been updated based on consultation with designers and manufacturers, and new information has been provided on lifts and electrical switchgear.

BSRIA intends to fully replace BG 9/2011 Rules of Thumb 5th Edition by publishing further new guides in 2024, covering:

  • Mechanical criteria

  • Electrical criteria

  • Useful information and glossary

BSRIA would be very pleased to receive feedback on this guide – what’s missing, what can be improved in the information and its presentation, and what else BSRIA can do to make buildings better. Please email any comments and suggestions to information@bsria.co.uk.

Space and Weight Allowances (BG 84/2024)

BSRIA’s Space and Weight Allowances guide provides useful information for the early stages of design. Graphs are provided on areas, heights and weights of mechanical, electrical and public health equipment. Information is also included on floor space allowances, space for access, occupancy densities and means of escape.