UK Calculate build up height on floor tiles

[JohnNotJon]

Hi, I need to calculate the build up height on the ground floor so the builder can install the front door at the correct height.

The spec on anhydrite screed over wet UFH is:
Primer 0mm
Substrate adhesive 3mm
Ditra mat 3mm
Tile adhesive 14mm (10mm on mat and 10mm back butter)
Tiles 10mm

The bit I'm need help on is the adhesive layers. Are my figures right or would it compress down more?

Thanks!