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DDA Door Closer Regulations

For disabled people to have independent access through single or double swing doors, the opening force, when measured at the leading edge of the door, should be not more than 30N from 0° (The door in the closed position) to 30° open, and not more than 22.5N from 30° to 60° of the opening cycle. (See fig. 1)

Where, in order to meet the above opening force limits, the door-closing device is insufficient to keep an entrance door closed against external conditions, consideration should be given to installing one of the following door closing systems:

  1. A power operated (automatic) door – sliding or swing
  2. A power operated revolving door assembly; - (But note the caveats about use of revolving door assemblies in  BS8300 paragraph 6.3.5)
  3. An entrance lobby or air lock system of inner and outer doors
  4. For the purpose of Building Regulations in England and Wales, a low power rated door closer on a door fitted with a suitable latch.

 

Where hinged or pivoted fire resisting doors need to be accessible by disabled people, the door closing devices fitted should have ‘controlled’ action, conforming to the requirements of BS EN 1154:1997, Annex A, be of a variable power type and conform to the recommendations above. (See page 4)

The use of “swing free” controlled door closing devices should be limited to applications where doors are located for access to rooms or similar locations and not part of the circulation route.

The use of “delayed action” controlled door closing devices should similarly be avoided in circulation areas.

The opening force can be checked using a plunger-type force measuring instrument. Where measurements cannot be taken at the leading edge, they may be taken at a point on the face of the door up to 60mm from the leading edge, a position approximately in-line vertically with the spindle of a lever handle or the centre line of a pull handle or push plate, in which case the operating force limits can be increased by approximately 2N.

The accuracy of force measuring instruments available on the market varies and there are inherent difficulties in measuring forces on site. It is recognized, therefore, that any measurements will be subject to a degree of imprecision which could give rise to variations of between 2 and 3N.