The pattern match is the place where the pattern design matches at the seams. The repeat is the distance between the recurrence of the pattern. Random match is the easiest and will line up randomly at the seams with no specific match. A straight match starts over at the ceiling line. The design has to match the strips on either side which will result in a horizontal pattern sequence. A drop match needs to be aligned both horizontally and vertically on both sides. The pattern design lines up at the ceiling line with every other strip. It will create a diagonal pattern sequence instead of a horizontal pattern sequence.