A tile trim is used to finish the edges of a tiled area, typically corners where without an alternative such as mitring you will be left an exposed tile edge, which can be subject to damage and generally leave you with an unfinished look. Tile trim helps to provide a perfect finish for your tiling job.
Not only is it perfect for sealing and protecting your new tiling, it can also be used to frame window sills, box in plumbing or create a smooth transition between types of flooring.