Make a Baby Onesie Quilt

Onesie Quilt

Recently, I was inspired to make a quilt from my son’s onesies! This is pretty surprising because A) I generally don’t like onesie quilts and B) I’m not wild about the process of making T-shirt quilts.

Onesie Quilt

Although I LOVED the idea of having a keepsake from his first year (let’s face it… I was having a hard time saying “goodbye to all those cute clothes), I just didn’t love the look of most examples I’d seen.

Until I stumbled upon this onesie quilt sewn by Kacia at Coconut Robot!

If you are new to quilting with knit fabrics, her tutorial is excellent. I made a few modifications to make the process quicker for me, which I’ll tell you about below, in this quick and dirty onesie quilt tutorial.

Make a Onesie Quilt


– 28 to 42 onesies (sizes ranging from newborn to 12 months). Plan on more if you want a variety, and fewer if you want a more cohesive looking quilt with some repeats

– 3 yards of Pellon SF101 ShapeFlex (affiliate link)

– Binding and backing fabric

– 1 1/3 yard backing fabric and batting (should measure at least 40″ x 46″)

– 3/8 yard binding fabric

– Highly recommended: OLFA 6 1/2″ square ruler (affiliate link)

Onesie Quilt

Finished Quilt Size: 36 1/2 ” x 42 1/2″

Quilt Assembly:

Onesie Quilt

1. Cut a 6 1/2″ square of ShapeFlex with your square ruler. Since the ShapeFlex comes in a 20″-wide roll, you should be able to cut three squares per row.

Onesie Quilt

2. Use an iron to fuse the rough side of the ShapeFlex to the wrong side of your onesie, centering it on the design if needed. Unless the onesie snaps open like this one, you’ll need to snip your onesie open, usually cutting down one long side seam and sleeve.

Onesie Quilt

3. Once the ShapeFlex is fused to the onesie, use your ruler again to trim around the square. Adding some type of fusible interfacing to the back is very important for getting crisp, clean squares that will not stretch out of shape. You’ll notice that some of my stripes warped, which is due to squeezing too many squares out of a single onesie. However, I didn’t mind this because I REALLY wanted to repeat the majority of my prints for consistency and design.

Generally, you’ll be able to center the cutout and repeat with the front and back of the onesie to get two usable squares from each one. I was able to do this with sizes from newborn to 12 months! In a few cases, I had to include a bit of bulky shoulder seam, but only enough that it would be easily hidden in the seams of the quilt.

4. I used a total of 28 onesies (or baby items) for a quilt with 42 squares. I tried to get at least 2 usable squares out of each onesie (front and back). For the grey with yellow stripes, a 9-month jumper with shorts, I was able to get 3 out of one outfit! I also made creative use of a burp cloth (barely used) and velcro swaddle when I realized I needed a few more light-colored squares.

For some of the appliqued onesies, I needed to cut out the onesie and reapply it to another square. For instance, if a zipper or seam line would be in the way. Be creative!

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5. Once you have your squares fused and cut, have fun arranging them. I went with a checkerboard layout (light and dark squares) and faced all of my stripes the same direction. I used a few plain, white blocks to break up the design.

6. Sew your blocks together in each row using a scant 1/4″ seam. Press the seams open and join together the rows. I joined the blocks in each row and then used my “tiny stitches method” to join the rows together and get perfect points! You can also pin, if you wish.

Onesie Quilt

7. Baste your quilt and quilt as desired. I used a free-motion quilting stipple pattern, creatively avoiding the appliques. I made my own 2 1/2″ width quilt binding from solid navy fabric. This was my third try, and it was the winner!

Onesie Quilt

A homemade onesie quilt would make a great gift for a toddler mom . . . don’t you think?

Onesie Quilt

I think Elliot likes it!

Onesie Quilt

Have you ever made a onesie quilt or T-shirt quilt? I hope you enjoyed this tutorial, and it that inspires you to try something new!


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  21 comments for “Make a Baby Onesie Quilt

  1. Lucy Daniel
    June 12, 2015 at 7:16 am

    This is the best tutorial. I have 5 grand kiddos and plenty of LOVED ONESIES by them. Thank you for this tutorial. XO

  2. June 15, 2015 at 4:11 pm

    This is so cute! and your little guy is so adorable! I fused and cut my onesies probably a year ago. I need to pull them out and make some sense of them. My boy is 3 1/2 now….

  3. Sigi G
    November 6, 2015 at 7:28 am

    What a treasure quilt. So cuddly and cute and special! Beautiful!

  4. November 12, 2015 at 11:29 am

    thanks for the kind words and link back — the quilt looks awesome!!

  5. January 19, 2016 at 2:46 pm

    I love what you have done here. It just makes me sad because I already sold or gave away all my son’s cute clothes and so it’s too late for me to do this!! I will be sure to tell my friends with younger babies to hang on to theirs! This is a lovely idea.

  6. Jen
    March 6, 2016 at 1:04 pm

    How do I take an applique from one onesie and put it on another square? (I have an applique design from one of my girl’s preemie outfits…of course I can’t get a 6 1/2 inch square from it!) But it was the first outfit we put her in so I want to use it!! :-)

  7. June 5, 2017 at 8:28 am

    Hi Lindsay

    I had just finished reading Kacia at Coconut Robot post regarding the onesie quilt and I thought I did’t need to read anything else. However, curiosity got the best of me and I clicked your link and I’m so glad I did. You addressed the problem that I had with the applique clothing. When I sorted through the clothes there were so many cute appliques but a zipper or a snap was in the way. So now I know how to handle them. Thanks so much. Monica

  8. echo
    January 2, 2018 at 11:27 pm

    how big is the quilt?

    • January 4, 2018 at 9:34 pm

      Finished Quilt Size is 36 1/2 ” x 42 1/2″.

  9. Bonnie
    January 13, 2018 at 1:13 pm

    Lindsay I have done t-shirts quilts and know how to price them but have someone wanting one made of onesie and not for sure to price it can you help me with this.

    • March 20, 2018 at 10:50 am

      Bonnie, that’s a tough one! It will probably be smaller than a t-shirt quilt, so I’d try 50 to 70 percent of what you’d normally charge for a bed quilt.

  10. Suellen
    January 22, 2018 at 1:24 pm

    I just stumbled upon this and I love it! Of course, I may be a bit biased because I recognize many of my son’s clothes in your quilt!

  11. Martha
    April 20, 2018 at 5:40 am Hi, this is my first time ever attempting to make a quilt, but my first born just turned 2 and I can’t imagine getting rid of his baby clothes. What kind of fabric do you use for the back of the quilt?

    • June 28, 2018 at 2:20 pm

      Hi MArtha! I used quilting cotton for the back. You could also use fleece fabric for a super soft backing.

  12. Tina
    July 13, 2018 at 8:36 pm

    Can this quilt be made with brand new onesies or would that be too expensive?

    • July 14, 2018 at 11:27 am

      You could make it with new onesies, but many people like used ones for the cost and the sentiment of making something from clothing. :)

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