Schoolhouse 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 a corner triangle

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

2. Make 1 rail unit

   Sew the Dark F and Background F rectangles together along their long edges. Press toward the Dark. Each measures 4¼″ × 2¾″ (3¾″ × 2¼″ finished).

3. Add a corner triangle

   Sew the Dark D triangle across the corner, along its long edge, and press toward the triangle.

4. Make 1 section, 4¼″ × 3½″

   Sew a rail unit and a Dark G rectangle together in a column. Press toward the plain pieces. Each measures 4¼″ × 3½″ (3¾″ × 3″ finished).

5. Sew the units and pieces into 4 rows

   Lay out the units and pieces as in the picture and sew them into 4 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.

6. Join the rows

   Join the 4 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 a corner triangle

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

2. Make 1 rail unit

   Sew the Dark F and Background F rectangles together along their long edges. Press toward the Dark. Each measures 6⅛″ × 3⅞″ (5⅝″ × 3⅜″ finished).

3. Add a corner triangle

   Sew the Dark D triangle across the corner, along its long edge, and press toward the triangle.

4. Make 1 section, 6⅛″ × 5″

   Sew a rail unit and a Dark G rectangle together in a column. Press toward the plain pieces. Each measures 6⅛″ × 5″ (5⅝″ × 4½″ finished).

5. Sew the units and pieces into 4 rows

   Lay out the units and pieces as in the picture and sew them into 4 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.

6. Join the rows

   Join the 4 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 a corner triangle

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

2. Make 1 rail unit

   Sew the Dark F and Background F rectangles together along their long edges. Press toward the Dark. Each measures 8″ × 5″ (7½″ × 4½″ finished).

3. Add a corner triangle

   Sew the Dark D triangle across the corner, along its long edge, and press toward the triangle.

4. Make 1 section, 8″ × 6½″

   Sew a rail unit and a Dark G rectangle together in a column. Press toward the plain pieces. Each measures 8″ × 6½″ (7½″ × 6″ finished).

5. Sew the units and pieces into 4 rows

   Lay out the units and pieces as in the picture and sew them into 4 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.

6. Join the rows

   Join the 4 rows, matching and nesting the seams where they meet. Press the long seams open or to one side. The block measures 12½″ (12″ finished).