The corridor tile pattern is a simple, two-tile style. It is essentially a grid-like tile pattern broken up with intervening rows of narrower, rectangular tiles.
Some homeowners make the mistake of introducing a different color for the "corridor" rows. This gives the floor the appearance of "jail bars." With corridor tiles patterns, you may want to keep all tiles the same color.
Two tile pattern.
6 x 12 and 12 x 12
133 total for both sizes of tile.
* = Refers to the number of differently sized tiles required for the pattern.
** = 1 is easiest, 5 is hardest.