"Dean Lawrence" wrote
| We have full plans approval which shows a 700 mm opening, however as
| with all these things, when the opening was full exposed it ended up
| being 100mm less, which the builders assure me is within tolerances.

Tolerances? +/- 15% is tolerance???? Or in old money, they've lost 4".

If 700mm is what is on your approved plans then the builders should be
building 700mm. Otherwise what you are building is not approved. You can ask
Building Control to agree an amendment, or you can tell the builders to
widen the door.

Owain