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18 June 2020 TRADA Paper Performance of fire-resisting timber doorsets

Fire-resisting doorsets are required to be able to contain a fully developed fire, to facilitate escape of a building’s occupants and allow fire-fighting, and to protect the structure from the effects of fire. The doorset therefore must have resistance to fire, expressed in terms of time.

This Wood Information Sheet is intended as a guide to architects, quantity surveyors, building surveyors, building control officers, fire prevention officers and builders. It compares the various performance requirements for timber fire-resisting doorsets and makes recommendations on their specification.


  • Fire resistance time
  • Performance
  • Regulation requirements
  • Demonstration performance
  • Doorset specification
  • Doorset design
  • Installation
  • Doorset variations
  • Maintenance

This Wood Information Sheet was revised in October 2018.