Four-patch quilt blocks

A four-patch block divides into two squares across and two down, or into a grid that halves again: 4 × 4, 8 × 8. Four Patch itself is the simplest, but Sawtooth Star, Pinwheel, Dutchman’s Puzzle and Storm at Sea are four-patch blocks too.

Because the grid halves, four-patch blocks cut cleanly at sizes that divide by 2 or 4: 6″, 8″ and 12″ usually fall on the ruler. Each page says which sizes do.