The Measurements Box appears in the lower right corner of the SketchUp interface. The way the Measurements Box works changes based on which tool you are using:

• When you create geometry, you can enter a value in the box and specify precise dimensions.
• When moving or rotating, you can enter a value to help you position your geometry.
• When scaling geometry, entering a value helps you scale to a precise value.

For any tool, you can change the type of unit of measurement by specifying the new unit type when typing in a value.

The Flip and Move tools can help you create multiple copies of an entity in a pattern, also known as an array. You can use the Measurements Box to specify how that array appears.