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Strip Piecing Basics

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Inside: Strip Piecing Basics

Have you heard of strip piecing? It’s a technique that can save you time and fabric. Learn how to cut and piece fabric strips to quickly make simple quilt blocks.

One of my favorite quilting techniques is Strip Piecing. This simple and efficient technique uses fabric strips that are sewn together to form strip sets. These strip sets are then cut into smaller units and can be used to create a variety of quilt blocks.

Because this method is so productive it saves time, money, and fabric. If you have a roll of 2.5″ strips, it’s even better.

Strip Piecing Basics

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Strip Piecing Basics

Cutting the Strips

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When cutting your fabric strips, accuracy is essential. This can be achieved my making sure your fabric is square because cutting even slightly off grain strips can make strip sets bow and they will not be uniform in size.

It is also recommended that you cut along the lengthwise grain (parallel to the selvage). These are the strongest threads in the fabric and will keep your strips from stretching when you sew. Learn more about finding fabric grain and squaring here.

One sure-fire way to get completely accurate fabric strips is to use a Stripology Ruler . Once your fabric is squared you place it on top and start cutting your strips across the fabric. Nothing could be easier.

Pro Tip: While it’s time-saving to cut strips that are the width of the fabric (WOF), it’s recommended that you cut them down into 21″ lengths before sewing together. Longer strips tend to bow and will eventually lead to uneven quilt blocks.

Strip Piecing Basics

Cut the Following:

(2) Strips of 2.5″ x 21″ fabric in light color

(2) Strips of 2.5″ x 21″ fabric in dark color

Optional: If you have a set of pre-cut strips (don’t we all!), these work well, too. One thing to remember is that pre-cut strip rolls generally have fewer low volume (light color value) fabrics  and more medium value fabrics. If you go this route, you may want to have a roll of lighter value strips. Also, when sewing pre-cut strips with a pinked edge, your sewing foot should align with the sawtooth edge.

Sewing the Strips Together

Strip Piecing Basics

It is essential that you use a scant 1/4″ seam allowance when sewing your fabric strips together. This will ensure that the smaller units you cut from your strip sets are uniform in size. This will be important when you start connecting them to make a quilt.

Pressing is equally important. Once you’ve sewn together a pair of fabric strips, set the seam with an iron then then press the seam allowance towards the darker fabric. Make sure there are no creases in the seam line.

Once the strips are connected and pressed, it’s a good idea to make sure all of the connected strips are the same size. Do this by laying an acrylic ruler along a seam and verifying the strips are all the same size.

Strip Piecing Basics

If using pre-cut strips, I recommend using a Walking Foot to sew the strips together since these are usually cut on the crosswise grain. They will have a little stretch which can lead to bowing.

Pro Tip: It’s recommended that you sew your strips together in pairs rather than four across at once. The reason for this is to avoid your seams bowing. It’s also a good idea to reverse your sewing direction when connecting these pairs. For instance, if you start sewing all of your strip sets at the top, longer strip sets will eventually start to bow. Instead, sew strip set pairs; and on every other pair, flip the top and bottom and sew together from the opposite direction. Voila! No bowing in your strip sets.

Step 1: Sew Strip Set Pairs

  • Set your stitch length to 1.5mm. This is important because when you sub-cut your strip sets you’ll be cutting across this seam.
  • With right sides together, sew a light and dark set of fabric strips using a scant 1/4″ seam allowance.
  • Press seam towards the darker fabric. Set aside.
  • Sew a second set of light and dark fabric strips together using a scant 1/4″ seam allowance.
  • Press seam towards the darker fabric. Set aside.

Step 2: Connect Strip Set Pairs

Strip Piecing Basics

Pro Tip: When you place your two strip set pairs together, be sure that the seams are opposing. This means that one seam allowance points left and the other points right.  Make sure your seams are nested as you connect the two strip sets because this will set up your seams when you start turning the strip sets into blocks. Doing this also helps keep your pairs nicely aligned.

  • Place the two strip sets from Step 1 right sides together, matching up the light fabric to the dark fabric.
  • Stitch together using a scant 1/4″ seam allowance.
  • Press seam towards the darker fabric.

You should now have four strips across in a light + dark + light + dark pattern. Be sure to measure for accuracy.

Step 3: Sub-cutting the Strip Sets

This is where the magic happens! Now you’ll begin sub-cutting the strip set. For the sake of this tutorial, I’ve chosen to sub-cut 2.5″ strips that will be flipped and then reattached.

  • Sub-cut four 2.5″ units.
Strip Piecing Basics

Step 4: Rearrange

Rearrange the strips to create a design.

For this example I’ve flipped every other sub-cut unit. This creates a nice patchwork design. If I had four different 4-strip sets to work from, I would be able to create a nice, scrappy quilt.

Another option would be to make my sub-cut units wider. For instance, if I sub-cut each unit to be 3.5″ (instead of 2.5″), I’d end up with a 12.5″ quilt block. Put five of those quilt blocks across and five down and you’d have a 60″ square quilt.

That’s the beauty of strip piecing.

Strip Piecing Basics

Step 5: Sew Together

For the purposes of this tutorial, I’ve sub-cut four 2.5″ units from a four-strip set. Once assembled, I will have an 8.5″ x 8.5″ block that can be used in a quilt.

Strip Piecing Basics
  • With right sides together, nest seams and clip or pin sub-sets together
  • Using a 1.5mm stitch and a 1/4″ seam allowance, sew sub-cut sets together.
  • Press seams in one direction.

 Note: If you’ve pressed your seams correctly throughout the process, they will all nest perfectly!

Strip Piecing Basics

Step 6: Make a Pillow

Now that you know strip piecing basics you can create tons of designs. There are so many projects available that use this method.

Try out your strip piecing skills with this fun pillow tutorial!

Once you’ve mastered a few of these simple strip quilt projects, you should be confident enough to move on to something more challenging…like a quilt!

Strip piecing is so fast and efficient. And if you pay attention to the small details, your quilts will turn out perfectly every time.

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  1. I love reading your blog and all the tricks you incorporate. I wish you had been my teacher. I thought I’d venture into quilting 9 years ago. Unfortunately the teacher we had was more interested in helping her friends in the class. The rest of us floundered around trying to get a handle on the various techniques. When I asked her how to choose colors my question was treated with disdain and astonishment at my ignorance. One of the women sitting behind me whispered she had the same question but was given the same response. Unfortunately I never did finish that quilt and have never taken up quilting. I do knit and embroider so do have plenty of other projects, but that unfinished baby quilt is still sitting in my craft room. Every so often I pull it out and look at it. Maybe someday I will take the plunge and try and finish it. Thanks for the encouragement.

    1. We’ve all had bad instructors or been in classes that were dominated by one person. I believe that online video classes offer the best opportunity for learning – especially with experts. Expect to hear more about all of the available options soon.

  2. Thank you so much for the strip piecing basics! I just started a strip pieced quilt and your article saved me from a lot of mistakes.

  3. Hello Leslie, just a note to let you know how much I enjoy your posts. I have been quilting for years however I always find your instructions so useful and valuable. I especially enjoyed this one regarding the basic strip piecing. You must enjoy what you do because I know it is very time consuming to create these for your blog.
    Sincerely! Susan

  4. HI Leslie, have been following you for quite a long time and getting the info I need. Have quilted for years, with one small class many years ago, so basically am self taught, with help from quilting sites and video classes.

    Of all your hints, I think this is my absolute favorite. Pretty basic method that I have never gotten done as well or easily as I wanted. This was just wonderful. Thanks so much for making me a better quilter. I would recommend it to anyone new to quilting especially.

  5. It’s been along time since I’ve quilted and this is just what I’ve been looking for. Correct tips to perfect the quilting methods.
    I will be making Two baby quilts for TWINS ! How fun will that be!
    Although I never finished my own daughters quilt which is full-size. (She just turned 27), I will finish these.
    Thanks so much! Debbi

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