**System Information**
Operating system: Ubuntu 20, but will sure be the same in any OS
Graphics card: onboard Intel but do not think it matter
**Blender Version**
Broken:
(example: 2.83 release)
**Archimesh units**
**Exact steps for others to reproduce the error**
Set in Blender, units to mm, scale to 0.001 and then create a room with 4 walls with archimesh and see that if you want to size the room according to the untis used (mm) you need to input for exampl 2500 mm to have a 2.5 m room length but you cannot input more than 150 in the corresponding field