How level are Concrete Floors?

[ian_bates]

We have just had a new concrete floor laid by what we thought was a reliable building firm. However it is not completely level. It appears that they have just leveled the concrete off in sections by hand using a trowel, and there are lots of minor inconsistencies and some more major bumps. Also the floor slopes slightly around the edges for the last 6inches all round the room.

How level can you expect a new floor to be? Is it reasonable to expect a perfectly level surface?[/img]

 

[oilman]

I don't know how level it SHOULD be, but floors with a thin vinyl, or similar, covering are usually flat enough to put a 4 leg table on without it rocking, and that's pretty flat. I had the same problem with a screed laid in a 12 foot square room, the middle was an inch higher than the edge. The third time it was done we had tiles put down, now it's flat to within 1/16th inch.

 

[ian_bates]

Thanks. Actually they came back, were apologetic and put a screed down yesterday. It is now looking a lot better.