How to Make Half Square Triangles 1 at a Time

This Half Square Triangle  (HST) method makes one HST at a time.  This method is best for

  • Small numbers of HST.
  • Controlling the direction of the print on the fabric.

Preparation:

Determine the size of the Half Square Triangles (HST) needed e.g. a 2 1/2” unfinished (2” finished) HST.

Cut 2 squares of fabric to the unfinished size of the HST needed e.g. cut 2 - 2 ½” squares.

Steps to Make HST – 1 at a Time Method

To make one Half Square Triangles (HST) at a time, follow these steps.

Step 1: Place the two squares of fabric right sides together. Draw a diagonal line across the top square.

Making a Half Square Triangle Step 1

Step 2: Sew along the diagonal drawn line.

Making a Half Square Triangle Step 2

Step 3: Cut ¼” away from the drawn diagonal line cutting away the excess fabric.

Making a Half Square Triangle Step 3

Step 4: Open the HST out and press the seams.

Making a Half Square Triangle Step 4
Download your FREE copy of the HST Cheat Sheet.  The cheat sheet includes a fabric cutting guide and step by step instructions for the 2, 4 and 8 at a time methods.

Use the links below to refer to details of how to make Half Square Triangles via the:

Looking for quilt patterns that use Half Square Triangles, then check out the following patterns:

Making a Half Square Triangle
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