This is what you get when you previously hired a beaver instead of a plumber to install your shower. Make sure to always hire a professional. We will make sure that your shower can work in the location you require so you don't make the same mistake this client did. A floor joist cannot be hacked up like this as it will diminish the structural integrity of the floor in that area. This could cause the floor to buckle and break in that area. 705-984-6249 www.polybplumbing.com #plumberorillia#plumbernorthbay#plumberbarrie