There is a component under the window, which is its own model search tool. The operation method is as follows:

1. After opening the software interface of SketchUp 20 19, create a column in the work editing area. The first thought is to create a rectangular object.

2. Then use the Stretch tool to stretch the column style of the rectangular object model.

3. Then at the bottom of the column, use the offset tool to enlarge the bottom surface.

4. Then, you can copy a face after clicking the move tool.

5. Then select the extruded surface. Copy the other face and put it in the top position. In the same way as the picture below, it is completed.