The room, and wall are even 2 diffrent symbols in this program.

Why 1 mm is important ?
Sry ?

This is a 3D design program, isn't it ?

It is used to make plans of rooms, and if I can't realize my room in it, it simply does not fulfill it's purpose at all.

If that room is 1mm longer or shorter, it ...

So I have to read all to find out, how to create a room, with a size of 1 mm more ?

Look it is a simple question, I am not unexperienced with other pretty similar tools. I only not understand, how to make my room 1555 mm long that is all.
If this program is not able to do so, then it is bullshit ...

Hi,

where can I do such a thing ? I did not even know, there is a wall, if I create a room, I think creating a wall is something diffrent.

Hi,

I am trying to create a room which has accurate measures, but it seems, I can only generate measures on 2 mm exact measure instead of 1 mm.

My room is 1555mm long but I can only create one with 1554mm or 1556mm lenght, is there any way to make it exactly 1555 mm long ?