Create the custom layout in one of the following ways:
Use multiple Space shapes
Drag multiple Space shapes onto the drawing page. Overlap the Space shapes to approximate the overall shape of your floor plan, as shown in the illustration. Select all of the Space shapes. Right-click the selected shapes, and then click Union, Subtract, or Intersect.
Note When you work with Space shapes, always choose these commands from the shortcut menu that appears when you right-click the Space shape.

In this illustration, three space shapes overlap each other.

After you click
Union on the shortcut menu, the three space shapes are joined as one space shape.
Use a Space shape and geometric shapes
Drag a Space shape onto the drawing page. Draw one or more geometric shapes, such as rectangles or other polygons. Overlap the geometric and Space shapes to approximate the overall shape of your floor plan, as shown in the illustration. Select the Space shape first, and then hold down the SHIFT key and select the other shape(s). Right-click the selected shapes, and then click Union, Subtract, or Intersect. The shapes are converted into a single Space shape.
Note When you work with Space shapes, always choose these commands from the shortcut menu that appears when you right-click a Space shape.

In this illustration, a shape that has multiple segments overlaps a space shape.

After you click
Union on the shortcut menu, the shapes are joined as one space shape.
Convert the newly created Space shape to walls.
Right-click the Space shape, and then click Convert to Walls. Select the options you want in the Convert to Walls dialog box.
If you plan on resizing the shape, be sure to select the Add guides check box. You can resize the walls by dragging horizontal and vertical guides.
Note If you didn't add guides when you converted the shape to walls, you can resize the newly created walls by manually resizing and reconnecting individual walls.
Add additional walls to create individual rooms.