Nine Patch

About this block

The Nine Patch is one of the most foundational blocks in American patchwork: nine equal squares arranged in a 3×3 grid, usually alternating light and dark to create a simple checkerboard. Like the Four-Patch, it belongs to a small handful of grid-based blocks that quilters count among the earliest and most enduring pieced forms, and it was often one of the first blocks taught to new sewers because it requires nothing more than joining squares into rows and rows into a block. Beyond its basic form, "Nine Patch" also functions as a broader construction category: any block built on a 3×3 grid, however elaborate the individual units, falls into the Nine Patch family, which is why so many distinct named blocks (Shoo Fly, Ohio Star, Churn Dash, and dozens more) all trace back to this same underlying structure.