In the process, we’ve seen firsthand which SketchUp plugins are the most useful for designers and related motif professionals. And while some are exactly what you need, others might pass you down the wrong route. But while it’s great to have access to all these propagations, how do you choose the right ones for you? All told, there are close to a thousand propagations make their own choices. And you’ll find a majority of them on websites like the SketchUp plugins Warehouse and Sketchucation. Some are free, and some you pay for, but each is designed with a specific function or point to rationalize your workflow and speed up the modeling process. Sometimes known as Ruby Scripts or Plugins, Extensions are tools that you can add-on to SketchUp that solve time-consuming or difficult problems. Sketchup Plugins – Instant Fence& Railing. 10 Best Sketchup Plugins Pro Every Architect Should Know.