This page describes how to create the walls and structure for many rooms:
Note: For instructions on designing an entire home or building click here.
Create a room to your exact specifications in 30 seconds or less with Room Wizard from the File menu.
If you need to add wall partitions or your room doesn't fit any of the preset sizes in the Wizard you can draw the walls to your room manually in blueprint, 3D or overhead views. See Drawing Walls in 3D and Drawing Walls in 2D.
Doors and windows can be applied to walls from the directory or by drawing custom doors and windows from the Build menu. You'll need to decide which serves your purposes best. See Add Doors and Add Windows for more information.
See Apply Materials for information about applying tile, carpet and other textures onto floors and walls from the Directory.
Depending on the kind of room you plan on designing, read the following How To's for ideas and examples:
Interior Design (living rooms, bedrooms, basements, etc.)