a drop match design does not run in a straight line across the wall. Instead, it appears to run diagonally. In a half-drop match, the design is staggered, so that only every other strip is identical at the ceiling line. It takes two strips of wallcovering to complete the pattern horizontally.

A drop match simply means your pattern does not match straight across the wallpaper but instead drops a certain distance on the opposite side of the paper. Once you have decided on pattern placement on your wall, every other piece will generally be the same.

A half-drop match is a wallpaper in which the design runs diagonally and the ceiling line is the same with every other strip. A multiple drop match is a wallpaper that uses four or five strips before the vertical design repeats.