Modern Triangle Quilted Coaster Tutorial

This weekend I had the idea to create some quilted coasters. I was recently accepted to a few markets in the summer and fall (my first!) and needed some small items to sell amongst the more expensive quilts. My goal was to avoid the traditional style patchwork/puffy batty coasters from our grandmothers' time and create something a little more modern. These guys took a little extra work but the straight line quilting really made them coffee table worthy. Then I thought, these guys were so simple that I just had to share! They were super easy, and with a little practice you could easily complete a set of 4 in under an hour! These make great, personalized hostess gifts or a little extra something for a wedding or, keep them for yourself!



Bust Out (or run to your local shop to grab)...


2 fat eighths of contrasting fabric for your HSTs (top of the coaster)

1 fat eighth of fabric for the bottom of your coaster

1 fat eighth of fusible fleece (batting will also work if you don't have any FF on hand)


Cotton Thread (I use Aurifil 50 wt for both the construction and quilting)

Some pins and/or Wonderclips

Fabric marking pen

Something to turn out your points (I love the Clover Hera marker, it's like the swiss army knife of quilting)


Plus the usual... iron, sewing machine with a 1/4" foot, cutting mat, ruler and rotary cutter.

Got it all? Let's get to it!


Once you've rounded up what you need, its time to get cutting. It's important to pay close attention at this stage because each of your fabrics are going to be cut to a different size due to the HST.


From your HST fabrics... Cut 2 5" squares from each fabric. You should have 4 5" squares total.

From your backing fabric... Cut 4 4.5" squares.

From your fusible fleece... Cut 4 4" squares.

Draw a diagonal line across opposite corners on the wrong side of two of your HST fabrics.


Place wrong sides together of each of your HST fabrics and pin into place. Sew 1/4" on each side of your line. Cut along your drawn line to separate your triangles. Press open, with the seam to the darkest fabric.

Now you have a lovely scrappy square for the top of your coaster! Repeat until you have 4 HST squares staring back at you.


Head on over to your ironing board with your coaster tops and fusible fleece. Align the fusible fleece in the centre on the wrong side of your HST. You should have about a 1/4" of HST around the edge of your fleece. Press well until the fleece is good and fused.

Now, place your fleeced HST and coaster bottom right sides together, lining up all edges and pin or clip in place. Mark a 3 inch gap on one side to allow you to turn your coaster right side out once it’s sewn together. Sew a 1/4” seam all the way around your coaster, ensuring you leave that gap on one side. Backstitch at each end so that your stitches are secure when you go to turn it inside out. Snip each corner to reduce bulk.


Turn your coaster right side out. Using your corner tool, gently push out your corners. Press well, ensuring your open end is turned in nicely to match the rest of your coaster.

Head on back to your sewing machine, and set your stitch length to something a little longer to give you a nice top stitch. I like a stitch length of 3.5 when quilting.


Sew all along the perimeter of your coaster, close to the edge (I do an 1/8”) to secure your edges and the open seam.


Now you are free to quilt them however your heart desires! I put a lot of detail in mine, but it resulted in a whole lot of thread burying, so if that’s not your thing, be sure to choose a pattern that doesn’t need to be started and stopped very often.


Repeat this process on the other three coasters and you’re done! Now go pour yourself a glass of wine (or cup of tea) and give them a good test run... you know, for quality assurance...

I'd love to see what you make! Showcase your creations on Instagram and tag with #themillennialquilter. If you liked this tutorial, be sure to subscribe for more!

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