How do I subtract a shape from another shape in SketchUp?

To subtract one shape from another in SketchUp, you typically use the **Subtract tool**, which is part of SketchUp's Solid Tools. This tool allows you to perform Boolean operations on solid geometry.

## Using the Subtract Tool

Based on how the tool works, particularly in interfaces like SketchUp for iPad with Pencil or Multitouch support, the process is straightforward:

*   **Select the Subtract tool** from your Solid Tools.
*   **Tap your first solid**. This is the shape you want to subtract *from*.
*   **Tap your second solid**. This is the shape that will be subtracted *from* the first solid.

Once you perform these steps, the second solid will be removed, and its overlapping volume will be cut away from the first solid.

## Key Requirements

It's important to note that the Subtract tool (and other Solid Tools) generally works on "solids" – specifically, SketchUp refers to "Solid Groups" or "Solid Components". This means the shapes you are working with need to meet specific geometric criteria to be considered solids by SketchUp.

For more detailed information on working with this tool and understanding what constitutes a solid, SketchUp resources often cover these topics, such as guides on "Subtracting one solid from another" within sections on "Modeling Complex 3D Shapes with the Solid Tools."