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Staircase Regulations
Please find some notes from Approved Document K of the Building Regulations 1992:

Stairs, Ramps and Guards gives provisions for stairways in the design and building of stairways which form part of the
structure and guidance on the aspects of geometry and
guarding of stairs.

BS585 Part 1 1989: Woodstairs covers specifications for stairs with closed risers for domestic use, including straight
and winder flights and quarter or half landings. Appendix A of this standard also details the recommendations for the
site fixing of stairs.
BS5395 Part 1 1977: Stairs, Ladders and Walkways covers the design of straight stairs.
BS6180 1982: Code of practice for protective barriers in and about buildings.

Private stairs intended to be used for only one dwelling with a maximum rise of 220mm and a minimum going of
220mm. A maximum pitch of 42° is stipulated for domestic stairs.

Institutional and assembly stairs serving a place where a substantial number of people will gather, with a maximum
rise of 150mm and a minimum going of 280mm.

Other stairs covers all other types of buildings, with a maximum rise of 190mm and a minimum going of 250mm.

The normal relationship between the dimensions of the rise and going can be expressed as detailed in Approved
Document K, which states that twice the rise plus the going (2R+G) should be between 550mm and 700mm.

Pitch the angle between the pitch line (notional line connecting nosings) and the horizontal. The maximum pitch for
domestic stairs is 42°, semi-public stairs, eg factories, offices and common stairs serving more than one dwelling, 38°
and public stairs, eg places of public assembly, 33°.

Height of handrails Approved Document K states that flights should have a handrail on at least one side if they are
less than one metre wide and on both sides if they are wider than one metre. There is no need for handrails beside the
bottom two steps of a stairway. Minimum domestic handrail heights of 900mm for both stairs and landings, public
handrail heights should be a minimum of 900mm on stairs and 1100mm on landings.

It is also a Building Regulations requirement that no openings in any balustrading should allow the passage of a
100mm sphere.

Please note this is not a full representation of the building regulations on staircases and Stairplan take no responsability for any staircases
manufactured by any other staircase manufacturer or joiner.

For more detailed information on the current UK Building regulations on staircases use the link on the links page.


Here are some Links to pages out of The Building Regulations Document K.

Page 4 .This is a short introduction to Document K.
Page 5. This page is titled Guidance and covers topics titled Performance, Intoduction and Definitions.
Page 6. This page covers the Steepness of the Staircase with information on the Rise and Going, this page also notes
on the construction of the steps in relation to the 100mm sphere rules.
Page 7. This page covers Headroom, Stair Widths and the total length a flight of stairs can go to.
Page 8 .This page refers to the areas required to be left when a doorway is near the staircase, and also provides
information on the layout of Winder staircases.
Page 9. This page covers the Space Saver staircases otherwise known as Alternating Tread Staircases.
Fixed ladders. also Handrails to staircases.
Page 10. This covers Ramps.
Page 11. K2 and K3 Health and Safety in repect of Guarding.
Page 12. Guarding to different areas.(handrail heights)
Page 13. 100mm Sphere Rule.

Please note we cannot guarentee these to be the latest publication.