BS 1139 is a British standard that provides specifications for scaffolding materials, components, and practices. When it comes to the thickness of scaffold tubes (also known as scaffold pipes) under BS 1139, the standard specifies a minimum wall thickness of 4.0mm (0.16 inches).
The wall thickness of 4.0mm is commonly used for scaffold tubes under BS 1139. This thickness ensures the tubes have the necessary strength and load-bearing capacity to support workers, equipment, and materials on scaffolding systems while maintaining structural integrity and safety.
It's important to note that BS 1139 covers other aspects of scaffold tubes as well, including dimensions, material properties, surface finish, and more. Adhering to the requirements of BS 1139 helps ensure the quality, compatibility, and safety of scaffold tubes used in construction projects.
When procuring scaffold tubes under BS 1139, it's advisable to confirm that the tubes meet the specific requirements of the standard, including the minimum wall thickness of 4.0mm.





