Pinwheel Block Pattern

From the designer: "You’ll be on your way to a super cute and classic quilt with this Pinwheel Quilt Block Pattern. Designed to be one of the “blocks of the month” and a 12 inch square, this quilt square pattern is a great practice block to get you on your way to creating your own handmade quilt. Use this square pattern as one of the blocks in your homemade

Note: Throw-sized quilt pattern can be purchased as an instant print and digital download.

Project TypeMake a Project

Quilt Size12 inches wide x 12 inches long

Time to CompleteIn an evening

Primary TechniqueQuilting


Materials List

  • 2 fat quarters- one light fabric and one dark fabric color
  • Thread, scissors, iron, rotary cutter and mat, sewing machine


  1. Cut two 6 7/8" squares

  2. Sub cut each 6 6/8" square in half diagonally. You will be cutting on the bias, so be careful to avoid distortion. Yield=4 half square triangles.

  3. From dark fabric: Cut two 6 7/8" square in half diagonally. You will be cutting on the bias, so be careful to avoid distortion. Yield=4 half square triangles.

  4. Piecing Directions: Use 1/4" seam allowance throughout.

  5. With right sides together, sew one light half square triangle to one dark half square triangle on the diagonal cut. Repeat four times to make four squares. Gently press seams together toward the dark triangles. Again, your are working with the bias, so avoid stretching the fabric.

  6. With right sides together, join two pieced squares alternating light and dark triangles as shown in diagram. Gently press seams toward the dark triangles. Repeat for second pair of squares. You should now have two rectangles composed of alternating light and dark triangles.

  7. Join the two rectangles as shown to form the block. Gently press seams toward the dark triangles.

    (c) all rights reserved by Donna Westerkamp

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