If you are dealing with a long stretch of doors or drawers, mark the holes on the extreme points first (left to right, or top to bottom). Draw a line between the two extreme points either with a straight edge or chalk snap line.
For a row - obtain the vertical measurement, halve it, then mark that spot. Do this twice, one on each end. For a column - obtain the horizontal measurement, halve it, then mark that spot. Do this twice, one on each end.
Note: See also our helpful advice on installing cabinet hardware.

