Understanding Half-Drop and Quarter-Drop Pattern Repeats Half-drop and quarter-drop repeats are variations of offset wallpaper, each adding unique visual effects. A half-drop repeat shifts the pattern down by half the design’s height, creating a diagonal, flowing effect. This is commonly used in botanical and damask patterns to add depth. A quarter-drop repeat moves the pattern down ... https://www.arthouse.com/blogs/how-to/pattern-repeat-pattern-match-the-low-down