ProjectSketch is a free SketchUp add-on for the selection and placement of Commercial Office Furniture in SketchUp drawings.
For laying out, editing and manipulating 3D components. and to create non-photorealistic renderings and images from SketchUp models.
RpTreeMaker is a free add-on for SketchUp to create custom Tree Components. The custom trees are stored in SketchUp as 2D- always face camera- trees.
RpWallMaker is a free add-on for SketchUp to create wide walls and cut openings.