Quilt block diagram
Log cabin quilt block
Successive strips grow around a center square, with light values on one side and dark values on the other.
Block structure
How the geometry is organized
A centered square surrounded by progressively longer rectangular strips.
- 1Begin with the center square.
- 2Add strips in order around the center, turning the work after every strip.
- 3Keep light strips on two adjacent sides and dark strips on the opposite sides.
Finished-size planning
Basic unit sizes
These values divide the finished block evenly for drawing and layout. They do not include seam allowance or method-specific trimming.
6 in block1 in unit
8 in block1.33 in unit
9 in block1.50 in unit
10 in block1.67 in unit
12 in block2 in unit