In the middle, but

With the installation of such a material, it is quite possible to cope on your own, because for this you need only a special solution or simple liquid nails. To glue the tiles, you can apply glue around the perimeter and in the middle, but you can point, however, the first option will be more reliable. To trim the extra pieces at the joints with the wall, simply cut off the chancellery with a knife of the ledge. To achieve seamlessness of the surface, apply the edges as close as possible to each other so as not to leave the space. Wipe the excess solution with a damp cloth that appear between the tiles. Perhaps this is the easiest and most practical flooring option.