How to draw a plane on cad?

First, the most basic thing is to get the data first. The data source can be the developer's brochure, the building construction drawing of the property, etc.

But there will be great errors in these drawings, so it is better to measure the room on the spot. Second, with the data, open F8 and draw horizontally and vertically according to the data. 1, if it is a developer's brochure or construction drawing, it is generally the center line of the wall. At this time, you need to draw the center line first, and then draw the wall with ML command. 2. If the house is measured on the spot, it is recommended to measure the wall thickness. So you can keep drawing down and the wall will come out naturally. Then draw the outer wall to supplement the doors and windows. It's done.