You did not understand my question. I mean, that the floor projection (top view) is not rectangular (because o ur house is 183 years old). Therefore, the walls in the square room have not the same lengh. I need to draw them in this software.

Hello,could someone advise how to do sloping walls in floor plan (top view) of the house? If it is possible, step by step I am a beginner.
Thank you very much.[/url]