18 quilt block guides

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12″ Ohio Star: Squares — Background; cut 4 at 4½″. See the complete answer

The 18 quilt block guides here cover accepted finished sizes that resolve to ruler-compatible cuts. Unsupported sizes are refused with nearby clean sizes, never silently rounded.

12″ Ohio Star cutting answer

Cutting sizes for a 12″ finished block.
Squares — Background
4½″
Squares — Fabric A
4½″
Squares for quarter-square triangles — Fabric A
5¼″
Squares for quarter-square triangles — Background
5¼″
Open the Ohio Star pattern
Ohio Star quilt blockA 3 by 3 grid of 9 units: 5 squares and 4 quarter-square-triangle units. 21 pieces in total.
Ohio Star — a 3 by 3 grid of 9 units: 5 squares and 4 quarter-square-triangle units. 21 pieces in total.

Fabrics in this block

  • A — gold
  • BG — background
See the complete cutting table

Column headings are the FINISHED block size — the size it will be once it is sewn. Every number in the table is the size to CUT, which includes ¼″ of seam allowance on each edge. Rows that are subcut on a diagonal are cut larger still, so the allowance survives the extra cuts.

Cutting sizes for Ohio Star, by finished block size
Patch12″
Squares — BackgroundCut 44½″
Squares — Fabric ACut 14½″
Squares for quarter-square triangles — Fabric ACut 2, cut on both diagonals5¼″
Squares for quarter-square triangles — BackgroundCut 2, cut on both diagonals5¼″

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