Stairs string
A stair string, stringer, or stringer board, is the panel on either side of a flight of stairs to which the treads and risers are fixed.
The string is described as ‘closed’ if it conceals the profile of the treads and risers. It is described as ‘open’ or ‘cut’, if its upper edge is cut away so that the profile of the treads and risers is visible from the site.
A 'routed string' has slots cut into it, into which the treads and risers can be fixed.
A string that is fixed to the wall is described as the 'wall string'.
The perpendicular distance between the pitch of the stairs and the top of the string, is described as the 'string margin'.
Wheelchair platform stairlifts travel along the stair string, allowing wheelchair users to travel up and down stairs while remaining seated in their wheelchair.
[edit] Find out more
[edit] Related articles on Designing Buildings Wiki
Featured articles
Check out some of the best features and news from Designing Buildings as well as key stories from around the web.
Bridging the gap between clients and contractors
Concerns remain around contractor quality, capability, and delivery.
Construction Management, 10 June.
Heat pumps beat boilers in new home tests.
Building Safety Act implementation in Wales
CIAT to host industry panel on 26 June.
New and updated CLC building safety guidance.
New UK National Buildings Database.
Building Safety Wiki Interviews
Chief executive of the British Woodworking Federation.
Planning condition discharge in England and Wales
A brief explanation from a building compliance expert, with further links.
Overheating guidance and tools for building designers
Guidance for dealing with element of building fabric control that have increasing importance.
Shading for housing, a design guide
From the Good Homes Alliance and British Blind and Shutter Association.
UK Standard Skills Classification (SSC)
A shared framework for describing skills needs.
Social media ban consultation comes to close
CIOB urges UK Government to consider social media’s role in careers guidance in ban debate.