There are 2 types of pattern repeat on a patterned fabric, Horizontal and Vertical. We are generally more interested in the vertical pattern repeat when making curtains and blinds and if only one pattern repeat is given by a manufacturer we would expect it to be the vertical one.
VERTICAL PATTERN REPEAT
The distance up or down the fabric, the pattern repeats itself.
HORIZONTAL PATTERN REPEAT
The distance across the fabric, the pattern repeats itself.