Navaho 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. Make 28 half-square triangle units

   Sew a Dark D triangle to a Background D triangle along their long edges. Press toward the Dark. Each measures 1¼″ (¾″ finished).

2. Make 4 sections, 1¼″ × 2″

   Sew 2 half-square triangle units together in a column. Press the seams to one side. Each measures 1¼″ × 2″ (¾″ × 1½″ finished).

3. Make 2 sections, 3½″ × 1¼″

   Sew 2 Background C squares and 2 half-square triangle units together in a row. Press toward the plain pieces. Each measures 3½″ × 1¼″ (3″ × ¾″ finished).

4. Make 2 sections, 3½″ × 1¼″

   Sew 4 half-square triangle units together in a row. Press the seams to one side. Each measures 3½″ × 1¼″ (3″ × ¾″ finished).

5. Make 2 sections, 3½″ × 1¼″

   Sew 2 half-square triangle units and a Background A rectangle together in a row. Press toward the plain pieces. Each measures 3½″ × 1¼″ (3″ × ¾″ finished).

6. Sew the units and pieces into 5 columns

   Lay out the units and pieces as in the picture and sew them into 5 columns. Press the seams in column 1 up, column 2 down, and so on, so they nest when the columns are joined.

7. Join the columns

   Join the 5 columns, 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. Make 28 half-square triangle units

   Sew a Dark D triangle to a Background D triangle along their long edges. Press toward the Dark. Each measures 1⅝″ (1⅛″ finished).

2. Make 4 sections, 1⅝″ × 2¾″

   Sew 2 half-square triangle units together in a column. Press the seams to one side. Each measures 1⅝″ × 2¾″ (1⅛″ × 2¼″ finished).

3. Make 2 sections, 5″ × 1⅝″

   Sew 2 Background C squares and 2 half-square triangle units together in a row. Press toward the plain pieces. Each measures 5″ × 1⅝″ (4½″ × 1⅛″ finished).

4. Make 2 sections, 5″ × 1⅝″

   Sew 4 half-square triangle units together in a row. Press the seams to one side. Each measures 5″ × 1⅝″ (4½″ × 1⅛″ finished).

5. Make 2 sections, 5″ × 1⅝″

   Sew 2 half-square triangle units and a Background A rectangle together in a row. Press toward the plain pieces. Each measures 5″ × 1⅝″ (4½″ × 1⅛″ finished).

6. Sew the units and pieces into 5 columns

   Lay out the units and pieces as in the picture and sew them into 5 columns. Press the seams in column 1 up, column 2 down, and so on, so they nest when the columns are joined.

7. Join the columns

   Join the 5 columns, 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. Make 28 half-square triangle units

   Sew a Dark D triangle to a Background D triangle along their long edges. Press toward the Dark. Each measures 2″ (1½″ finished).

2. Make 4 sections, 2″ × 3½″

   Sew 2 half-square triangle units together in a column. Press the seams to one side. Each measures 2″ × 3½″ (1½″ × 3″ finished).

3. Make 2 sections, 6½″ × 2″

   Sew 2 Background C squares and 2 half-square triangle units together in a row. Press toward the plain pieces. Each measures 6½″ × 2″ (6″ × 1½″ finished).

4. Make 2 sections, 6½″ × 2″

   Sew 4 half-square triangle units together in a row. Press the seams to one side. Each measures 6½″ × 2″ (6″ × 1½″ finished).

5. Make 2 sections, 6½″ × 2″

   Sew 2 half-square triangle units and a Background A rectangle together in a row. Press toward the plain pieces. Each measures 6½″ × 2″ (6″ × 1½″ finished).

6. Sew the units and pieces into 5 columns

   Lay out the units and pieces as in the picture and sew them into 5 columns. Press the seams in column 1 up, column 2 down, and so on, so they nest when the columns are joined.

7. Join the columns

   Join the 5 columns, matching and nesting the seams where they meet. Press the long seams open or to one side. The block measures 12½″ (12″ finished).