Solid Tools

In SketchUp, a solid is any 3D component or group with a finite closed volume without any missing faces or faces that do not meet at an edge. With SketchUp's Solid Tools you can create new shapes by combining or cutting one solid with another.

First, make sure the geometry you want to manipulate is a solid. Select the group or component and check the Entity Info panel. If your selection is a solid, you'll see confirmation there.

To help you start creating intricate geometry and complicated shapes, SketchUp provides the following Solid Tools:

Name	Icon	Description
Intersect		Remove all geometry from two solids except where they overlap.
Outer Shell		Combines multiple solid objects removing any unwanted interior geometry.
Split		Creates a solid third object representing the geometry where two other solids interact, subtracting that space from the original solids.
Subtract		Subtracts one solid object from another and removes it from your model.
Trim		Remove one solid object from another without removing it from your model.
Union		Combines two or more solids into a single form preserving any voids where those objects overlap.