What surcharge for laying large tiles is justified?

Am I at a loss, if so, who was included.

We install 30x180, the base price is 80 EUR per sqm, with installation 110 per sqm (from memory and without guarantee).

We are laying 30x180, base price is 80 EUR per sqm, with installation 110 per sqm (from memory and without guarantee)..

But that doesn't say anything about an installation surcharge compared to 30x30

Brief regards

Was related to curly's first post

That doesn't say anything about a laying surcharge compared to 30x30

... but it does say a lot about the surcharges that others here (when building with a general contractor?!) have to pay for trifles. Among other things, the question was asked about the appropriateness of surcharges.

For us, the surcharge didn't matter at all because the material surcharge was significantly higher and we only have 20 sqm of floor tiles in the house.