Its DIY. I haven't heard anyone mention ear plugs--the damn things are loud as any tool I have ever used including jackhammers--much louder than a chainsaw. I put down a strip of duct tape along the cut line to prevent chipping. If you use a wetsaw this won't be as much of a problem, but it makes a good line anyway. Just rent one--If you try what cmac does with his "lucky" saw, I bet you will burn it up. Plus, squirting water at a handheld circular saw just don't seem to safe for us lesser mortals