- Project plans
- Project activities
- Legislation and standards
- Industry context
Last edited 03 Sep 2018
Approved Document K - Protection from falling, collision and impact defines the ‘nosing’ of stairs as ‘the leading edge of a stair tread’.
[Image: The elements of stairs]
For buildings other than dwellings, step nosings should be made visually apparent by using a contrasting material on both the tread and the riser a minimum of 55 mm wide. If possible, step nosings that protrude over the tread below should be avoided. If the nosing does protrude, it should be by no more than 25 mm
[Image: Examples of suitable tread profiles]
For common access areas in buildings that contain flats step nosings should be visually apparent, using a material that contrasts visually, 50 - 65 mm wide on the tread and 30 - 55 mm on the riser. A suitable tread nosing profile, should be used.
 Find out more
 Related articles on Designing Buildings Wiki
Featured articles and news
How to ensure UK transport infrastructure copes with severe winter weather.
Location shortlist for controversial new footbridge revealed.
Under the Party Wall Act a property owner has the legal right to do works that might otherwise constitute trespass or nuisance.
BSRIA examine the 'unpredictable' 2018 global air conditioning market.
ICE publish new report calling for new sector-wide body to help avert structural failures.
The rainbow JCB will be making a welcome return to the London Build Expo on 23 and 24 October at Olympia.
An introductory article to external works - all activities carried out to the external environment of a building project.
With the clock ticking, RIBA say that a 'no deal Brexit' will be "disastrous" for the architecture profession.
The focus is generally on the lime binder, but the aggregate is actually the most significant element.
The importance of communication, collaboration and simplicity when planning construction projects.