oktopusinc wrote:
Ian Stirling wrote:
oktopusinc wrote:
I am doing a job in a building that has just been built. The concrete
floor has been poured 10mm low in places and 21mm high in others - does
anyone know the tolerances in British standards for poured concrete. I
may make a clai if they are over the limits.

I'd say that's entirely up to you to negotiate with them beforehand.

What - negotiate what the British standards are??

No, negotiate what's appropriate for the job, and what you are willing
to pay for.

For some jobs, +-150mm may be quite appropriate.
For others, +-1mm would be appropriate.

Any standard can only logically reflect this.