Quilt Block of the Month: February

Have you ever wanted to make a quilt but couldn't find just what you had in mind? The editors of Quilter's World magazine have compiled some block patterns, from the thousands of traditional blocks available, that you can download for free. With a few basic skills and a variety of block patterns, you can create countless designs in no time.

A new 8" x 8" finished block will be available each month along with helpful hints, tips and tricks. We will also give you ideas for block combinations and possible quilt settings from time to time to help you create fabulous quilted projects. We hope these blocks will inspire you to experiment with quilt design and create your own layouts. So get a binder and some page protectors to fill with block patterns and samples to fuel your creative juices.

Twelve Triangles

Finished Block Size
8" x 8"
Twelve Triangles


From Light 1 Fabric:

  • Cut 1 (3 3/8") A square.

    Twelve Triangles

From Light 2 Fabric:

  • Cut 2 (4 7/8") squares. Subcut each square on 1 diagonal to make 4 B triangles.

    Twelve Triangles

From Medium Fabric:

  • Cut 2 (2 7/8") squares. Subcut each square on 1 diagonal to make 4 C triangles.

From Dark Fabric:

  • Cut 1 (5 1/4") square. Subcut on both diagonals to make 4 D triangles.

    Twelve Triangles


  1. Center and stitch the long edge of a C triangle to one side of A (Figure 1). Press C away from A.

    Twelve Triangles

  2. Stitch a second C triangle to the opposite side of A referring again to Figure 1. Press C away from A.

  3. Repeat steps 1 and 2 with remaining C triangles referring to Figure 2. Press triangles away from A to make a square-in-a-square unit.

    Twelve Triangles

  4. Repeat steps 1 and 2 adding D triangles to the A-C unit and referring to Figure 3.

    Twelve Triangles

  5. Complete the block by adding B triangles in the same manner (Figure 4) to complete the block.

    Twelve Triangles

Helpful Hints

  • Choose two light, and one each medium and dark fabric for this block. Use scraps from other projects, or purchase fat eighths (9" x 22") or fat quarters (18" x 22") to make one sample block.
  • Cut individual pieces from scraps, or cut strips and then individual pieces from strips if using yardage or large pieces of fabric. For example, to cut several 2 1/2" squares, cut a 2 1/2"-wide strip the width of the fabric. Subcut the strip into 2 1/2" squares.
  • Use a 1/4"-wide seam allowance for all seams and stitch right sides together.
  • Use common sense and press seams to cut down on bulk. Traditionally, quilters press seams toward the darker fabric. However, some blocks may benefit from pressing seams open. Pressing tips are often given in the pattern.
  • For more detailed help with quilting techniques, go to QuiltersWorld.com and choose Stitch Guide in the sidebar to access Quilting Basics or consult a complete quilting guide. Your local library will probably have several on hand that you can review before purchasing one.


Cutting and stitching half-square triangles together along the long angled edge of the triangles is only one of the many ways to make triangle-square units.

From two contrasting squares:

Cut squares 7/8" larger than the triangle-square unit desired. For example, for a 2" finished square, cut 2 (2 7/8") squares.

Mark a diagonal on one square. Layer the squares right sides together and pin. Stitch 1/4" on either side of the marked line.

Cut on the marked line and press seams to one side making two triangle-square units.

From two contrasting bias strips:

Cut bias strips 1" wider than the desired finished triangle-square. For a 2" finished triangle-square, cut two contrasting bias strips 3" wide.

Stitch strips together carefully using 1/4" seam along length. Press seam toward dark fabric.

Use a square ruler to rotary-cut desired finished size plus 1/2" seam. For a 2" triangle-square, cut 2 1/2" square by positioning the ruler with a 45-degree diagonal line on the seam.

More choices:

There are also printed triangle papers, templates and rulers in a variety of sizes that make cutting and stitching triangle-squares easier and quicker when a project requires a lot of them. Check with your local quilt or fabric store or at online shops like AnniesCraftStore.com.

Consult a complete quilting guide for ideas on how to do any of these things. If you are a first-time quilter you can learn the whole quilting process from Learn to Make a Quilt From Start to Finish by Carolyn S. Vagts, editor of Quilter's World, available at AnniesCraftStore.com. If you are a some-time quilter who needs a little refreshing of your skills, again consult a complete quilting guide (easily found at your local library, book or fabric store) or the Stitch Guide link at the Quilter's World website.

Copyright © 2016 Annie's. All rights reserved.

For more detailed help with quilting techniques, view our Quilting Lessons or consult a complete quilting guide. Your local library will probably have several on hand that you can review before purchasing one.

Click here to download the PDF (318.3 KB)

Other quilt blocks in the series:

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