13 Block Lap Size Quilt Tutorial {Old School BOM Final Layout}

Because we made 2 blocks in April during the Old School BOM, I wanted a layout that would accommodate all 13 blocks that were made during the Old School Block of the Month. This layout is a very straight forward solution to having 13 different blocks that finish at 12″ square, so I thought I’d share what you’d need if you want to recreate this 52″ x 72″ finish.

13 Block Lap Size Quilt Assembly Diagram

You’ll need:

• (13) 12½” unfinished (12″ finished) blocks
• 1¾ yards of background fabric

Cutting Instructions

From the background fabric, cut:

• (2) 12½” x WOF strips
  • From each strip, subcut (2) 12½” squares [for a total of (4)] and (3) 4½” x 12½” rectangles
• (3) 4½” x WOF strips
  • Subcut (8) 4½” x 12½” rectangles [for a total of (14)]
• (8) 2½” x WOF strips

Piecing Instructions

1. Arrange your (13) blocks on your design wall 5 rows, alternating between 3 and 2 blocks per row, as shown in the assembly diagram above.
2. Using the (4) 12½” background squares and (14) 4½” x 12½” background rectangles, sew the blocks and background pieces together to make 5 rows. Press seams toward the background fabric.
3. Trim the selvages from the (8) 2½” x WOF background strips and sew them together along the short ends to make one long, continuous strip. Find the average measured width of your 5 pieced rows, and trim the long strip into 6 sashing strips using the average measured width, approximately 2½” x 52½”.
4. Alternating between a sashing row and block row, sew the quilt top together. Press seams toward the background fabric. The quilt top should measure approximately 52½” x 72½”.

TIP: When sewing the sashing and rows together, I used a few pins to make sure everything stayed lined up. It’s useful to know that the blocks overlap one another by 4″. For the purposes of pinning, I measured and marked  4″ offsets to use to line up the edge of the next block row with along the raw edge of sashing.

Old School BOM Pieced Quilt Top

I’m really happy with how my Old School Block of the Month quilt top came together. Time to get it quilted!