I was writing a few days ago about placing fixtures on top of the tiles instead of putting the tiles around them. I forgot to mention that is to be done after placing the tiles. After all, the toilet has a drain, which you have to mount (if you don’t want to bring a plumber). Well, the drain is a small circle in the bottom of the toilet, fairly smaller than the toilets area. This means we don’t need a perfect cut for the drain as the toilet will cover a larger area around the hole. The first thing to be done is figuring out where the hole will go. Place the toilet in its final position and mark out the circular area where the hole will be cut. After you’ve obtained the circle, because it is rather difficult to cut a circle, you will cut an octagon around it. That means eight straight cuts around the circle, and the hole for our toilet is ready. You can use a wet-saw or an electrical hand-grinder with a diamond-tipped blade for this operation. The larger the difference between the drain diameter and the toilets area, the more liberty in movement.