I dont like this project for beginners, simply because it can be difficult to cut the floor square. using a circular saw in cramped posititions can be dangerous. be very careful of nails, as they can make kickback. leveling the floor can be tricky. it is important the floo be level around the toilet so it seats flat. one other tool that will be very helpful is a stud finder. I like to use screws and not nails in this application