Clamshell Extravaganza Sampler ©2017 Cindy Seitz-Krug

Clamshells 2 Different Ways!

Quilter Cindy Seitz-Krug shows us two different ways to do a clamshell design in the March/April 2018 issue.

Originally posted on March 28, 2018 by Cheryl Sleboda

Cindy Seitz-Krug gives us two ways to create a clamshell in the March/April 2018 issue of Machine Quilting Unlimited.  One of the earliest designs found in quilted items, the clamshell design is quite easy to achieve with a little practice.  In the beautiful piece above, Cindy has filled in the designs with additional stitching to really make your clamshells unique.

The first method is the one you may be most familiar with.  Cindy suggests to start your clamshells at the bottom of your area to be quilted and work your design upwards, like this diagram is shown here.   If you are not comfortable freehand quilting these designs, Cindy suggests using a grid so your clamshells are perfectly even.  You can draw that grid onto your fabric with a removable fabric marking pencil or pen.

The second design is from Cindy’s excellent book The Grid Design Workbook, called “the twisted grid”.  Working with a grid drawn onto your fabric, the gentle twists create the clamshells going in different directions.  The grid helps to make your clamshells perfect.  Note that you do horizontal and vertical “twists” separately.

Now you are ready to fill in your clamshells with all sorts of designs!  Be sure to pick up a copy of the March/April 2018 issue for lots of design ideas for clamshells from Cindy Seitz-Krug.  For more information about Cindy and her book The Grid Design Workbook, visit

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