Quilt block library

Plan the geometry before the fabric.

Compare twelve familiar block structures, check their repeat at quilt scale, and export an editable layout. Each page separates finished geometry from the cutting and sewing method you choose.

Open the layout planner

Rail fenceFour striped units turn ninety degrees around the block, creating a woven path with only straight divisions.Open diagram Four-patchFour equal squares alternate two fabrics for a simple block that also works as a repeatable layout unit.Open diagram Log cabinSuccessive strips grow around a center square, with light values on one side and dark values on the other.Open diagram Square in a squareA square set on point sits inside four corner triangles, giving a crisp diamond without a curved seam.Open diagram PinwheelFour half-square-triangle units rotate around the center to form a clean spinning shape.Open diagram Sawtooth starEight triangular points surround a large center square in a balanced nine-unit framework.Open diagram Friendship starFour diagonal star points orbit a contrasting center square in a compact nine-patch layout.Open diagram Churn dashCorner triangles and four bold side bars frame a quiet center square.Open diagram Economy blockA centered square is framed twice on point, creating a compact diamond-within-a-square composition.Open diagram Half-square trianglesA sixteen-unit sampler shows how identical half-square triangles create arrows, diamonds, and movement through rotation.Open diagram Shoo flyFour corner triangles and a strong center square make a spacious, highly readable nine-patch block.Open diagram SnowballFour contrasting corners clip a large center square into an octagon that connects cleanly in repeated layouts.Open diagram