<t>I think its easy to make the walls on further floors by simply redrawing then on the new floor.<br/>
<br/>
Sweet Home 3D allow you to "align" new walls on floors both above and below by simply using the "alignment vertices" that walls give.<br/>
<br/>
Example:<br/>
<br/>
You draw a room on a ...

Is there any sci fi theme furniture one can use to design a "space home"?

I am talking about chairs, stairs, elevators, beds, tables, wall/table consoles and etc.