Taking the math out of quilting.


Clays Choice

The Clays Choice quilt block fabric and instruction calculator.While I make every effort to be sure of accuracy, I am unable to test every variation. Before you cut up large amounts of fabric, cut and sew a test block or two. If you find any errors, please email me at "jeannethro2 at yahoo dot com".

Settings & Preview

When changing methods or fabric widths, check other settings for changes in available options.

Block Size



Fabric Width

Finished Size:
12 inches square
Clays Choice block


Fabric 1 Fabric 1:
Cut 1 strip 31/2 inches wide. Subcut into 4 A squares. Cut 1 strip(s) 37/8 inches wide. Subcut into 4 B squares.
Fabric 2 Fabric 2:
Cut 1 strip 37/8 inches wide. Subcut into 4 B squares.
Fabric 3 Fabric 3:
Cut 1 strip 31/2 inches wide. Subcut into 4 A squares.


Half Square Triangle

Half Square Triangle instructions

  • Match one B square each of fabric 1 and 2 right sides together.
  • Draw a diagonal line from corner to corner on wrong side of lighter fabric.
  • Sew 1/4 inch seam on both side of diagonal line.
  • Cut units apart on drawn diagonal line.
  • Press seam to one side.
  • Makes 2 units per square pair.
  • Make 8 per block for a total of 8.
Clays Choice

Clays Choice instructions

Layout block pieces using A squares and half square triangles as shown in diagram. Sew first columns, then rows using a ¼ inch seam. Press seams to one side.

Quilt Sandwich instructions

  • Place pressed backing right side down on a flat surface large enough to lay flat; tape in place at sides, then corners.
  • Lay batting on top of backing and smooth wrinkles; tape in place at sides, then corners. (If using slippery batting, spray baste to baking and top.)
  • Put pressed quilt on top right side up.
  • Smooth borders and blocks square, pushing excess toward middle. Quilting will take up slack and quilt will hang better.
  • Pin baste 3 to 4 inches apart in quarters down length and width. Finish pin basting each quarter 3 to 4 inches apart.

Binding instructions

  • If the number of binding strips are greater than 1, sew strips together by laying ends right sides together forming an L.
  • Sew on diagonal where fabrics cross from upper left to lower right.
  • Trim excess to ¼ inch.
  • Repeat to make a continuous strip; press seams open.
  • Fold and press strip lengthwise in half wrong sides together.
  • Leaving a 5 inch tail, sew binding to quilt top matching raw edges with a ¼ inch seam.
  • Stop ¼ inch before corner with needle down.
  • Pivot work as if to sew next side and reverse sew off quilt top.
  • Fold binding back, creating a 45 degree fold, then fold forward matching fold to previously sewn side.
  • Continue sewing binding, and repeat above for each corner.
  • Stop sewing approximately 5 inches from beginning.
  • Unfold and overlap ends.
  • Cut at an approximate 45 degree angle somewhere where both ends overlap.
  • Match ends wrong sides together, leaving equal dog ears.
  • Sew together with a ¼ inch seam.
  • Refold binding and finish sewing to quilt.
  • Fold binding to back and handstitch to finish using a blind stitch.


Follow Us