Shadow Box Quilt Block Pattern

Shadow Box quilt block pattern — a step-by-step quilting tutorial using a framed center square with fabric strips to create a dimensional shadow box effect

Shadow Box quilt block pattern overview


Shadow Box quilt block — fabric layout and color arrangement

New to quilting? Check out our beginner quilting class covering all the basics.

How to Sew a Shadow Box Quilt Block

The Shadow Box quilt block is a fun and creative design that adds dimension and texture to your quilting projects. Using a framed center square with fabric strips on the sides and top, this block creates a beautiful three-dimensional shadow box illusion!

Materials Needed

  • Fabric for the shadow box (solid or print)
  • Fabric for the background (solid or print)
  • Rotary cutter and cutting mat
  • Quilting ruler
  • Sewing machine, thread, and pins

Step-by-Step Instructions

  1. Cut the shadow box fabric. Cut a square for the front of the box and strips for the sides and top. The size depends on your desired finished block size.
  2. Sew the strips to the front square. Sew the strips onto the sides and top of the front square, right sides together. Align the seams and keep the corners square.
  3. Press the seams open to reduce bulk.
  4. Cut the background fabric to the same size as the front of the shadow box.
  5. Layer the fabrics. Place the shadow box fabric on top of the background fabric, right sides together. Pin the layers together.
  6. Sew around the edges, leaving a gap for turning.
  7. Turn right side out through the gap.
  8. Press the block flat, smoothing out any wrinkles or bumps.
  9. Close the gap using a ladder stitch or slip stitch.
  10. Quilt as desired by hand or machine.

Congratulations — your Shadow Box quilt block is complete! Repeat to make more blocks for a larger project, or combine with other blocks to create a unique and stunning quilt.

Mitered Corners Technique

Mitered corners create neat, seamless corners on a quilt by folding the fabric at a 45° angle, creating a diagonal seam, and trimming the excess fabric to reduce bulk.

Mitered corners technique — step 1

Mitered corners technique — step 2

Mitered corners technique — step 3

Mitered corners technique — step 4

Mitered corners technique — step 5

Mitered corners technique — step 6

Mitered corners technique — step 7

Mitered corners technique — step 8

Mitered corners technique — step 9

Mitered corners technique — completed diagonal seam

Mitered corners technique — trimming excess fabric

Mitered corners technique — pressing the corner flat

Mitered corners technique — finished corner example

Mitered corners technique — completed quilt border with mitered corners

Quilting classes and quilt block pattern tutorials from Motley Muse

How to Resize Quilt Blocks

The first step in modifying any quilt block is to decide on your finished block size. You can base this on doubling a pattern, cutting it in half, or working with your available fabric.

Note: When working from a pattern's cutting instructions, remove the seam allowance before scaling. For example, if your pattern calls for 3½″ squares, subtract the seam allowance (½″), double the finished size (3″ → 6″), then add the seam allowance back (½″) — giving you a 6½″ cut piece.

Resizing Square Blocks

Add ½″ to your finished block measurement. For a 4″ finished square, cut a 4½″ square of fabric.

Resizing Rectangular Blocks

Add ½″ to both the length and width. To double a 3″ × 4″ block, cut a 6½″ × 8½″ rectangle.

Resizing Half-Square Triangle Blocks

Add 7/8″ to the desired finished block size. For a 4″ finished HST block, cut 4⅞″ squares.

Resizing Quarter Square Triangle Blocks

Add 1¼″ to the desired finished block size. For a 4″ finished block, cut 5¼″ squares.

 

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