Introducing the Solid Tools in SketchUp Pro 8
«Every new SketchUp release contains at least one modeling tool that’s guaranteed to save you a ton of time and effort. SketchUp Pro 8 contains five . The all-new Solid Tools let you perform additive and subtractive modeling tasks (some folks call them Boolean operations ) on subsets of your g…» » source | + cache
See original post by Chris Gilmer