Master the Half-Square Triangle: Tips and Techniques

🔷The half-square triangle is a versatile unit in patchwork piecing and is essential for creating various quilt blocks and designs.

📏To create a half-square triangle, cut squares of the desired size and mark a diagonal line. Then, sew a quarter-inch away from the line and cut along the line to yield two half-square triangles.

✂️For multiple half-square triangles, follow the same process but mark a center line in addition to the diagonal line to ensure accurate sewing and cutting.

🔺Pressing half-square triangles with the dark fabric on top helps prevent seam allowances from showing through lighter fabrics.

📏✂️To achieve perfectly sized half-square triangles, use a quilting ruler with a 45-degree angle to trim the units to the desired measurement.

What is a half-square triangle?

—A half-square triangle is a unit commonly used in patchwork piecing. It is made by sewing together two triangles created from a square.

How do I make a half-square triangle?

—To make a half-square triangle, cut a square of fabric, mark a diagonal line on the wrong side, sew a quarter-inch away on both sides of the line, and then cut along the line.

Are there different methods for making half-square triangles?

—Yes, there are various methods for making half-square triangles, including the square method, the flippy corner method, and the 8-at-a-time method.

How do I ensure accurate sizing of my half-square triangles?

—To achieve accurate sizing, use precise cutting measurements, sew with consistent seam allowances, and trim the finished units using a quilting ruler with a 45-degree angle.

Can I use half-square triangles in different quilt blocks?

—Absolutely! Half-square triangles are incredibly versatile and can be used in a wide range of quilt blocks and designs, including stars, pinwheels, and borders.

00:06The half-square triangle is a versatile unit in patchwork piecing and is essential for creating various quilt blocks and designs.

01:17To create a half-square triangle, cut squares of the desired size and mark a diagonal line. Then, sew a quarter-inch away from the line and cut along the line to yield two half-square triangles.

03:38For multiple half-square triangles, follow the same process but mark a center line in addition to the diagonal line to ensure accurate sewing and cutting.

05:26Pressing half-square triangles with the dark fabric on top helps prevent seam allowances from showing through lighter fabrics.

07:57To achieve perfectly sized half-square triangles, use a quilting ruler with a 45-degree angle to trim the units to the desired measurement.