Guardrail
A rail is a longitudinal bar that can sit on uprights or can be attached to another structural component such as a wall. A guardrail is a longitudinal barrier that prevents people from falling or straying into a dangerous or restricted zone. Guardrails are typically made from metal, timber, or materials such as PVC.
Guardrails can be found in locations such as:
- On a balcony.
- On building sites.
- On the edge of a pavement to prevent pedestrians crossing roads at dangerous points.
- On the edge of a ramp.
- On a landing.
- On ships.
- Around potentially dangerous machinery.
- Along a hiking trail to prevent falls.
Guardrails typically have ergonomic dimensions, with the top rail around 107cms (+/- 8cms) above ground level.
NB According to Approved Document K, Protection from falling, collision and impact, guarding is ‘…a barrier that denies pedestrians or vehicles access to another area, for example the floor below’. Where a barrier is ‘…a structure – either a raised rail or a solid wall – that denies access to another area.' For more information see: Guarding
[edit] Related articles on Designing Buildings Wiki
Featured articles and news
We're expanding our collaborative mission by launching DB Intelligence, an exclusive market research advisory panel. Built environment professionals can now get paid to share their expertise on industry trends, products and services.
Panel members receive direct financial incentives for participating in research projects like short surveys, 1-2-1 interviews and focus groups. Register today to shape the future of the construction sector.
Planning condition discharge in England and Wales
A brief exoplanation 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.
The latest of eight Skills England apprenticeship units
The addition of battery manufacturing welcomed by ECA with a warning about the risks of fast-tracked apprenticeship units.
Building Control Independent Panel final report
A precis of a key report led by Dame Hackitt with full recommendations and link to the government response.
Building Safety recap April, 2026
A short and longer run-through of the month, with links to further information and sources.
CIAT May 2026 briefing.
From medieval scribes to modern word art.
ECA welcomes crackdown on late payment and push for clean energy, whilst CIOB seek fixed cladding removal timeframes.
Cyber Security in the Built Environment
Protecting projects, data, and digital assets: A CIOB Academy TIS.
Managing competence in the built environment
ITFG publishes new industry guide on how to meet the ICC principles.
The UK's campaign to reduce noise pollution: Mythbusting, articles and topic guides.





















