John’s Pinwheel quilt block

A 6″ finished block measures 6½″ before it’s sewn into a quilt. Each fabric’s yardage is the least that cuts its strips across the width of fabric, with a strip to spare for straightening.

Worked out by @quarterinch/cutting · ¼″ seams included · strips cut across 42″ of usable width · the letters are the pieces the sewing steps name

A 9″ finished block measures 9½″ before it’s sewn into a quilt. Each fabric’s yardage is the least that cuts its strips across the width of fabric, with a strip to spare for straightening.

Worked out by @quarterinch/cutting · ¼″ seams included · strips cut across 42″ of usable width · the letters are the pieces the sewing steps name

A 12″ finished block measures 12½″ before it’s sewn into a quilt. Each fabric’s yardage is the least that cuts its strips across the width of fabric, with a strip to spare for straightening.

Worked out by @quarterinch/cutting · ¼″ seams included · strips cut across 42″ of usable width · the letters are the pieces the sewing steps name

For the 6″ block. Choose another size above and these steps follow it.

1. Add 4 corner triangles

   Sew the Medium C triangle across the corner, along its long edge, and press toward the triangle.

2. Add 4 corner triangles

   Sew the Background A triangle across the corner, along its long edge, and press toward the triangle.

3. Add 4 corner triangles

   Sew the Background D triangle across the corner, along its long edge, and press toward the triangle. Each measures 3½″ (3″ finished).

4. Sew the units into 2 rows

   Lay out the units as in the picture and sew them into 2 rows. Press the seams in row 1 to the left, row 2 to the right, and so on, so they nest when the rows are joined.

5. Join the rows

   Join the 2 rows, matching and nesting the seams where they meet. Press the long seams open or to one side. The block measures 6½″ (6″ finished).

For the 9″ block. Choose another size above and these steps follow it.

1. Add 4 corner triangles

   Sew the Medium C triangle across the corner, along its long edge, and press toward the triangle.

2. Add 4 corner triangles

   Sew the Background A triangle across the corner, along its long edge, and press toward the triangle.

3. Add 4 corner triangles

   Sew the Background D triangle across the corner, along its long edge, and press toward the triangle. Each measures 5″ (4½″ finished).

4. Sew the units into 2 rows

   Lay out the units as in the picture and sew them into 2 rows. Press the seams in row 1 to the left, row 2 to the right, and so on, so they nest when the rows are joined.

5. Join the rows

   Join the 2 rows, matching and nesting the seams where they meet. Press the long seams open or to one side. The block measures 9½″ (9″ finished).

For the 12″ block. Choose another size above and these steps follow it.

1. Add 4 corner triangles

   Sew the Medium C triangle across the corner, along its long edge, and press toward the triangle.

2. Add 4 corner triangles

   Sew the Background A triangle across the corner, along its long edge, and press toward the triangle.

3. Add 4 corner triangles

   Sew the Background D triangle across the corner, along its long edge, and press toward the triangle. Each measures 6½″ (6″ finished).

4. Sew the units into 2 rows

   Lay out the units as in the picture and sew them into 2 rows. Press the seams in row 1 to the left, row 2 to the right, and so on, so they nest when the rows are joined.

5. Join the rows

   Join the 2 rows, matching and nesting the seams where they meet. Press the long seams open or to one side. The block measures 12½″ (12″ finished).