Hello Musketeer,
The question is, what was meant? You are certainly assuming 33x33. But it could just as well have been 30x60 or 33x66. By the way, there are also 33x60 cm tiles. So why should the builder become suspicious?
Mpfm - I really didn’t expect that comment from you
You know, I admit I’m annoyed that a simple typo immediately brings such a scenario to life; yes, even if it doesn’t affect me. People make mistakes; generally, they learn from them and develop further. "All" people!
In the vast majority of the BB, 30 x 60 tiles, if at all, are listed – usually in smaller standard sizes; by now, I know enough of them. From this, I can deduce that it must be a typo (which was suspected by the OP as well) and in the first step, it should probably be clarified where this error occurred; in the construction manager’s office or at the notary?
Either way, an unpleasant spectacle if the OP insists on his opinion that the construction manager must bear the extra costs. Moreover, his relationship with his construction manager will certainly not improve because of this – and that is as certain as Amen in church – there will also be situations where the OP will depend on the well-being of his construction manager.
So, why not see it as it is? A mistake was made … unfortunate, it would have been nice, but it was not meant to be … but that happens in the heat of the moment … Nobody can walk on water. Such an approach would move the OP forward if the pendulum then swings for real to the other side, because his construction manager will remember.
Rhenish greetings