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Share knowledge to help create a safer built environment

Search or browse  fire safety and structural safety information, or  Share a safety issue

Welcome to Collaborative Reporting for Safer Structures UK (CROSS-UK). CROSS is a confidential reporting system which allows professionals working in the built environment to report on fire and structural safety issues. These are then published anonymously to share lessons learned, create positive change, and improve safety. Find out more about the safety information we provide below.

Go to the 'Safety Information' page to find fire safety reports or information on structural safety issues and concerns.

If you are looking for a specific topic or category, use the filters to find the most relevant information to you, we have reports on concrete, steel, masonry, timber and many more categories.

If you know of or have experienced a fire or structural safety concern or incident submit a report to CROSS using the secure reporting system so we can share the lessons learned. 

CROSS-UK Newsletter 73


CROSS-UK Newsletter 73 has been published and includes expert comment on fire and structural safety reports.

Bridge precursor events


A Theme Page to highlight the importance of, and encourage knowledge sharing on, bridge precursor events.

Modular construction design concerns

A reporter highlights concerns regarding fire travel in a modular floor cassette with inbuilt services.

Sudden collapse of 1850s stone balcony


A stone balcony collapsed without warning from first floor level onto steps below.

Horizontal mains used as a solution to meet vehicle access requirements

Approved Inspectors and building control bodies are increasingly accepting horizontal mains as a solution to meet the firefighting vehicle B5 access requirements of Approved Document B (ADB).

Overloading of older multi storey and underground car parks

A reporter shares concerns that the significant increase in size and gross weight of vehicles may impact the safety of some older car parks.

Use of Table B3 of Approved Document B for loadbearing external walls


A reporter is concerned about the apparent selective reading of Table B3 of Approved Document B (ADB) by some designers.

Share your knowledge

Your report will make a difference. It will help to create positive change and improve safety.

Our secure and confidential safety reporting system gives professionals the opportunity to share their experiences to help others.