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Defined terms: Dimensional and technical measurements
NI-wide·Technical Booklet R Access to and Use of Buildings
Surface width – the width of a stair or ramp, measured at the tread of a flight or the surface of a ramp, between any enclosing walls, strings, upstands, kerbs or guarding. Terminal fitting – a water
stairsrampsaccessibilityaccessScope and relationship to fire safety and Part H
1.7NI-wide·Technical Booklet R Access to and Use of Buildings
Part R is limited to matters of access to, into, within, and use of a building. It does not extend to means of escape for a person with a disability in the event of fire, for which reference should be
non-domesticaccessfire-safetystairsrampsProvision of complementary steps with ramps
2.3NI-wide·Technical Booklet R Access to and Use of Buildings
As ramps are not necessarily suitable and convenient for all people it is beneficial to have steps as well as a ramp. For example, some people who can walk but have restricted mobility find it more di
non-domesticaccessrampsstairsaccessibilityProtection from areas below stairs and ramps on access routes
2.15NI-wide·Technical Booklet R Access to and Use of Buildings
Any area below the soffit of a stair or a ramp and its landings that is less than 2100 mm above an access route should be protected by a distinguishable barrier rail which incorporates either a vertic
stairsrampsaccessprotection-from-fallingProtection under stairs and ramps
4.9NI-wide·Technical Booklet R Access to and Use of Buildings
Any area below the soffit of a stair or a ramp and its landings that is less than 2100 mm above a circulation route, should be protected by a distinguishable barrier rail which incorporates either a v
stairsrampsprotection-from-fallingInternal stairs as alternative means of vertical access
4.23NI-wide·Technical Booklet R Access to and Use of Buildings
Whatever lifting device is chosen, internal stairs should also be provided as an alternative means of vertical access.
accessaccessibilitystairsvertical-circulationStairs for changes of level in circulation routes
8.4NI-wide·Technical Booklet R Access to and Use of Buildings
Where the circulation route within the entrance storey or the access to the circulation route within the principal storey contains a change of level, a stair may be provided.
stairsaccessaccessibilityVertical circulation provision
9.6NI-wide·Technical Booklet R Access to and Use of Buildings
A vertical circulation route to any storey should be provided by a common stair and where a lift is provided, by a suitable passenger lift.
flatsaccessaccessibilitystairs