Note For a demonstration of the following steps, click the Show Me button.

1. On the Main toolbar, click the Zoom Area button.
   

2. Click the upper left of the inside wall of the room on the right and select the lower right corner of the room.

3. On the Draw toolbar, click the Line button.

4. On the ribbon bar in the Line Color box, select red to change the line color.

5. Draw a 20 inch horizontal line in the open space.

6. Move the mouse cursor down to draw an 18 inch vertical line.

7. Draw two more lines to complete the box.

8. On the Draw toolbar, click the Fillet button.
   

9. On the ribbon bar in the Radius box, type 4 inches and press Enter.

10. Click each corner of the box.