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Double Star Quilt Block Pattern
From our Free Quilt Block Pattern Library

Double Star quilt block tutorial

The Double Star quilt block pattern is made from a hybrid of a half and quarter square triangles, and rectangles and a square. It uses four fabrics.

Skill Level: Confident beginner

Grid: 5x5

AKA: Hope of Hartford

In order to piece the unit we'll use a technique known as 'partial seams' or 'puzzle piecing'. No special tools, rulers or templates are required. The patches are all rotary cut.

It's a fun little block to make that looks more complicated than it is. A couple of pins makes everything easy.

Construction Instructions

Block Size: 7-1/2" finished (8" unfinished) for this tutorial

Grid Size: 1-1/2"

All seam allowances are 1/4".

When you are instructed to press, first press the pieced unit flat to set the seam. Then open the patch, pressing from the front. The direction to press the seam is included at each step in this tutorial.

If you wish to make a Double Star quilt block in a different size click here to find our cutting chart at the end of this page.

Step 1: Cut the fabric patches

Rotary cutting instructions for Double Star quilt block

For QST units, I like to start with over-sized patches and trim to actual size after stitching. The over-sized units that I cut and used for this lesson are in parentheses ().


  • Four 2" x 3-1/2" rectangles
  • One 4-1/4"(4-1/2") square, sub-cut twice

(orange polka dot)

  • One 2" square

Large Star Points:
(yellow print)

  • Two 3-7/8"(4-1/8") squares, sub-cut once

Small Star Points:
(orange print)

  • One 4-1/4"(4-1/2") square, square sub-cut twice

In the photo below I have not yet sub-cut the Large Star Points (yellow print) squares.

These are the patches needed for this 7-1/2 inch Double Star quilt block


Step 2: Assemble the units

Stitch the QST units

The quarter square triangle units in this block are pieced from individually cut patches. The units are identical. There is no mirror imaging.

With RST, align the edges of one background triangle to one Small Star Point triangle. Double check the position of the patches to insure they are in the right position. Stitch.

Repeat for the three remaining pairs. To prevent sewing errors, keep the patches in the same order—the blue background fabric is always on top in the photo.

Sew the quarter square triangles first

The red arrow points to my anchor cloth

Press seam allowances toward the darker patch (blue).

You're ready for the next seam.

Patches ready to assemble for the next seam

Align the long edge of this pieced blue and orange unit with the long edge of the Large Star Point triangle. Stitch.

Stitch the second seam of the quarter square triangle unit

Press seam allowances toward the larger triangle to reduce bulk.

If you need a refresher on trimming quarter square triangle units to size, click here to review this technique in Quarter Square Triangle, Technique #1, Steps 6-7.  The center measurement for our Double star quilt block is 1-3/4".

Repeat for the remaining 3 quarter square triangle units.

Add the background rectangle

With RST, align the long edge of a background rectangle with the Small Star Point side of the QST unit. Pin if needed. Stitch.

Add the background rectangle to the quarter square triangle unit

The units are stitched together with the pieced QST on top. That way, I can
ensure that the seam allowances don't flip over and twist during stitching.

Press. Seam allowance toward the background fabric. Repeat for the 3 remaining units.

Step 3: Assemble the block

To construct this block the first seam is a partial seam. This is done to create an edge equal in length to the remaining units.

With RST, align the center square with the corner of the Large Star Point fabric. Pin if needed. You will stitch along the long side of the QST unit for a little more than half the length of the center square. Our stitching is between the black lines.

Sew a partial seam to attach the center square

Sew a bit more than half the seam to attach the center
square to the first quarter square triangle unit

Press with seam allowance towards the center square.

With RST, align the next QST unit with the edge of the Center/QST unit. Stitch.

Press. Seam allowance towards the QST-unit.

Stitch the second section to the first

Repeat for the third unit, pressing towards the center square.

Repeat for the third section

Add the fourth. Pins were helpful to keep the layers evenly together during sewing. Press the sewn seam allowance away from the center.

Stitch the fourth unit to the first three

This is how the block looks from the front before pinning the last, partial seam.

The unit before stitching the last seam

For the last seam things get a bit lumpy. Nothing that a few pins can't tame.

In the photo below, you can see how I've pinned to align and hold the edges. The far right pin is inserted past the original stitching line. This is to help hold things flat and out of the way.

Pinning the last seam

Stitch this seam.

Press, seam allowance towards the center square.

This is how the block looks from the back.

Double Star quilt block viewed from the back side

Your finished Double Star Quilt Block from the front.

The finished Double Star Quilt block

Cutting Chart for Other Block Sizes

You may wish to cut the squares for the quarter and half square triangles slightly larger and then trim them to size after stitching. In the tutorial I cut these squares 1/4" larger.

Finished Block Size
Fabric Qty10”12-1/2”15”Sub Cut
Background44-1/2" x 2-1/2"5-1/2" x 3"6-1/2" x 3-1/2"n/a
Background 15-1/4" sq6-1/4" sq7-1/4" sqSymbol for a quarter square triangle
Large Star
24-7/8" sq5-7/8" sq6-7/8" sqSymbol for a half square triangle
Small Star
15-1/4" sq6-1/4" sq7-1/4" sqSymbol for a quarter square triangle
Center12-1/2" sq3" sq3-1/2" sqn/a
QST midpoint
for trimming
Grid Size2"2-1/2"3"n/a

Ready for more star-spangled quilt block patterns?

You've finished your Double Star quilt block and you're ready for more!

Check out our Free Quilt Block Patterns Library to find other star blocks to make your next quilt sparkle!

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