Friendship Star Quilt Block Pattern

From our Free Quilt Block Patterns Library

by Julie Baird

This post contains affiliate links for which I receive compensation.

Friendship Star quilt block tutorial

Skill Level: Beginner

Grid: 3x3

The classic Friendship Star quilt block is a marvelous place to practice making half square triangles. It takes just four of them plus five cut squares to make it.

In the following tutorial, we use two fabrics, but it works equally well as a scrappy block—just make sure there is a good distinction between the lights and darks so the star points don't disappear.

On this page you'll find instructions to make this block in 5 different sizes. Four common variations on this block are also illustrated.

Did you know that other radically different blocks are called 'Friendship Star'?  Those are pictured, too!

Let's get piecing!

General Instructions

Sample Block: 6" (6-1/2" unfinished)

Grid size: 2"

These abbreviations are used on this page:

  • SA - seam allowance
  • RST - right sides together
  • HST - half square triangle

SA 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. Seam allowances are pressed to the dark fabric unless otherwise noted.

Step 1: Cut the Friendship Star patches

Friendship Star patchwork designFriendship Star design

The dimensions in the chart below are for squares.

For example, Patch #4 for our 6" sample block is cut 2-1/2" x 2-1/2".

For the HSTs, I prefer to cut oversized squares. Those patches are marked with ** below. If your seam allowance is always spot on, cut exactly as instructed in the chart. If you'd like a bit of wiggle room, cut those HST patches a bit larger. Then trim to size after stitching. 

Generations Quilt Patterns logo

Cutting Chart for a
Friendship Star Quilt Block

~Traditional Piecing ~

PatchFabricQtyFinished Block Size
3" 4½" 6" 7½" 9"
1** L 2 1⅞" 2⅜" 2⅞" 3⅜" 3⅞"
2** D 2 1⅞" 2⅜" 2⅞" 3⅜" 3⅞"
3 L 4 1½" 2" 2½" 3" 3½"
4 D 1 1½" 2" 2½" 3" 3½"
Unfinished Block Size 3½" 5" 6½" 8" 9½"
Grid Size 1" 1½" 2" 2½" 3"
**I prefer to cut my patches extra large for HST, stitch, and then trim them to size. If you prefer to do the same, add a bit extra to the measurements for Patches #1 and #2 above.

There is a chart further down in these instructions where you need it for trimming them to size.

These are some of the supplies I use to prepare and cut my fabric.

Step 2: Assemble the HSTs

Draw a diagonal line on the backs of two 2-7/8" squares with a pencil or other marking tool.

With RST, layer a light square with its dark counterpart, aligning all the edges.

Stitch a quarter inch away from both sides of the line, and repeat for the second pair of squares.

Stitch HST units

The arrow points to the anchor cloth.

Cut these units in two on the drawn line.


You now have 4 HSTs. If you started with oversized patches (as I did in this tutorial) you'll need to trim them. Use the chart below.

HST Dimensions

Block Size
Trim HST to…
3" 1-1/2"
4½" 2"
6" 2-1/2"
7½" 3"
9" 3-1/2"

For more detailed instructions on making HSTs with this technique, visit Half Square Triangles: Technique #1.

Here are our HST after trimming.

Trimmed HST units

Step 3: Assemble the Friendship Star block

Lay out your HSTs and cut squares as they will be sewn.

Lay out the units in rows

You could turn all the HSTs a quarter turn counterclockwise and your star would
spin in the opposite direction. Either direction is just fine, the choice is yours!

Stitch the units in the rows together. Press with the SAs towards the cut squares and away from the HST. This allows for your seam allowances to nest which makes matching them oh-so-much easier!

Stitch the units into rows

Stitch the rows together.

Stitch the rows together, pin if needed

The arrow points to the anchor cloth.

One final press (don't forget to try out our Best Technique for Pressing Quilt Blocks for amazingly flat finished blocks!) and your Friendship Star quilt block is finished.

Friendship Star blockFriendship Star quilt block

Common Variations

There are several closely related block variations, each successive one involves just a bit more piecing.

New Home

Very close to the original design except that a third fabric is added.

Simplex Star

Very much like the New Home above, but notice that the HST units are flipped on their vertical access. The corner patches are a darker value.

Nine Patch Star

HSTs are added to the corners in a pinwheel fashion to add movement to the block.

Ribbon Quilt Block

The same units as in the Nine Patch Star above only the corners are all rotated a quarter turn.

Another excellent variation for scrap quilting!

Click here for instructions to make it.

Water Wheel

Four patches are added in the corners along with a 3rd fabric. They make a nice secondary pattern when the blocks are joined edge to edge.

Same name, different block...

Just like so many of the other basic blocks, 'Friendship Star quilt block' is used to name several others...ones that look nothing like what we made for this page.

Here are three of them...

An intricate looking three fabric block.

On closer inspection you can see it's all basic construction techniques: four patches, Flying Geese, connector corners, and cut squares.

Easy Peasy!

The second Friendship Star quilt block includes y-seam piecing and four fabrics.

Those these first two are, indeed, different, they are similar in appearance. This one will be the more difficult of the two to piece.

Note, too, that this design uses elongated diamonds instead of symmetrical diamonds.

Completely different than the previous two blocks, but still using y-seam piecing, and still called 'Friendship Star'.

Are you seeing stars?

There are star blocks and so much more in our free Quilt Block Patterns Library. Click here to take the first step in your next block-adventure!

For even more blocks to make...

These are my go-to resources for quilt block ideas. 

Can you see the library sticker on the spine of Jinny Beyer's book? Yep. I check this copy out of our local library every few months for research.

Maggie Malone's 5500 Quilt Block Designs is my all-time favorite quilt block resource!

Can you tell?

It's in color.

It's got a ton of blocks.

What's not to love?

Next on my 'must-have' list is Barbara Brackman's Encyclopedia of Pieced Quilt Patterns.

Unlike the Maggie Malone book, the blocks in this volume are hand-drawn and in black and white—no color—personally, I prefer colored drawings to work with.

This book is no longer in print.

If you can come by a copy expect it to be wickedly expensive. Once in awhile you can find it here on

UPDATE: Electric Quilt, in cooperation with Barbara Brackman has announced they plan to republish the Encyclopedia sometime in 2020. 

However, all is not lost if you can't find a hard copy.

BlockBase is the computerized version of the Barbara Brackman's Encyclopedia of Pieced Quilt Patterns.

It contains designs for over 4300 blocks—pretty much every block published from the 1830's through the 1970's.

It can be used with Electric Quilt and is a Windows based program.

In fact, there are instructions included so that you can pull up the digital patterns within Electric Quilt (PC version for now) without having to open up BB program.

UPDATE: Electric Quilt has announced that they will be rereleasing the standalone BlockBase software for BOTH PC and MAC in 2020.

This is terrific news.

Finally there's The Quilter's Album of Patchwork Patterns by Jinny Beyer.

Lots of detail and in color, it is a beautiful volume. That said, I check it out of my local library on a regular basis instead of purchasing it—can you see the library sticker on it's spine. Yep, it's from the Plainfield Public Library.


Simply because I own the previous three references and find this the least user-friendly of the group.

And it does make a fabulous coffee table book!

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