How to Make an Ohio Star Quilt Block: A Simple Tutorial

The Ohio Star quilt block holds a special place in my heart—it’s a timeless classic that’s both easy and enjoyable to create.


Today, I’m thrilled to share with you a comprehensive Ohio Star quilt block tutorial, complete with straightforward instructions to help you craft this iconic block with confidence.

During the summer, I had the privilege of writing about the Quilts of Valor program. This incredible initiative matches quilters and quilts with deserving veterans, fostering a sense of connection and gratitude. Read more about it here. While crafting an entire quilt might seem like a substantial undertaking, especially during the busy holiday season, stitching a single quilt block takes only a matter of minutes!

As part of the Sew4Good December Challenge Calendar, we’re focusing on sewing quilt blocks. You have the option to accumulate these blocks for a future quilt project, or team up with fellow crafters to create a collaborative quilt. Local quilt guilds often embark on similar projects, making it possible to donate your blocks to a worthy cause within your community.


Materials You’ll Need

  • 2 different colors of quilting cotton (I used patriotic floral fabric; affiliate links)
  • 3.5″ and 4.5″ square acrylic rulers
  • 9.5″ square ruler
  • Fabric marker or chalk pencil
  • Cutting mat, rotary cutter, and neutral thread

Ohio Star Quilt Block Pattern

This tutorial will guide you in creating a 9″ square block. Remember, the seam allowances are 1/4″.

Step-by-Step Guide

1. Prepare the Patches

Begin by cutting out the following patches:

  • 4 squares measuring 3.5″ by 3.5″ from Color 1. These squares will form the corners of the block.
  • 1 square measuring 3.5″ by 3.5″ from Color 2 for the center of the block.
  • 2 squares from each Color 1 and Color 2, each measuring 4.5″ by 4.5″.

2. Create Half Square Triangles (HSTs)

For the star’s points, we’ll craft Half Square Triangles (HSTs) and then combine them to form Quarter Square Triangles (QSTs).

  • Place the 4.5” squares of Color 1 and Color 2 on top of each other, right sides together.
  • Draw a diagonal line from one corner to the opposite corner.
  • Sew along the sides of the drawn line, 1/4” away from the line on both sides.
  • Cut along the line with a rotary cutter, being cautious not to cut through the stitching.
  • Open the blocks and press the seam allowances to one side.
  • Repeat this process to create a total of four Half Square Triangles (HSTs).

3. Craft Quarter Square Triangles (QSTs)

  • Pair up two HSTs with right sides together, ensuring the seam allowances align.
  • Draw a line through the triangles from the corner of Color 1 to the corner of Color 2.
  • Follow the same process used for HSTs to sew 1/4″ away from the line on both sides.
  • Cut along the line and press the QSTs open.
  • Trim them to a 3.5” square size.

4. Assemble the Ohio Star Block

  • Combine the solid blocks and QST blocks to construct the Ohio Star Block.
  • Press the block once it’s assembled.

The Ohio Star design is a personal favorite of mine, known for its versatility in modern quilt patterns. Its timeless appeal makes it suitable for a wide range of quilting projects.

Additional Tips and Techniques

Creating an Ohio Star quilt block is not only enjoyable but also an opportunity to refine your quilting skills. Here are some additional tips and techniques to make your quilting experience even more rewarding:

1. Precise Cutting: Accurate cutting is the foundation of a well-crafted quilt block. Use high-quality rulers and a sharp rotary cutter to ensure clean edges and consistent measurements. Taking your time with cutting will lead to more precise piecing.

2. Seam Nesting: When sewing the Half Square Triangles (HSTs) together for the Quarter Square Triangles (QSTs), pay attention to nesting the seam allowances. Nesting the seams where the HSTs meet will result in perfectly matched points and more seamless blocks.

3. Pressing Techniques: Proper pressing can make a significant difference in the final appearance of your quilt block. Press the seam allowances towards the darker fabric to reduce bulk and achieve crisp intersections. Consider using a hot iron and a spritz of water for effective pressing.

4. Seam Allowance Consistency: Maintain a consistent 1/4″ seam allowance throughout your sewing. Consistency in seam allowance will ensure that your quilt blocks come together accurately and fit seamlessly.

5. Test Your Seam: Before sewing all your pieces together, take a moment to test your seam allowance on scrap fabric. This simple step can prevent issues like blocks turning out slightly too small or too large.

6. Chain Piecing: To save time and improve efficiency, use the chain piecing technique. This involves sewing multiple pieces together in a continuous chain without cutting the threads in between. Snip the threads later when you’re ready to press and trim.

7. Trim Carefully: As you trim your Half Square Triangles and Quarter Square Triangles, use a sharp rotary cutter and ruler to ensure clean and precise cuts. Trimming accurately will contribute to the overall neatness of your block.

8. Color and Fabric Selection: Experiment with different color combinations and fabric choices to add a personal touch to your Ohio Star quilt block. Consider contrasting colors for a vibrant look or subtle shades for a more traditional appearance.

9. Press Seams Open for Bulk: If you’re working with several layers of fabric at the intersection of your block, consider pressing the seams open to reduce bulk. This technique can help your quilt blocks lay flat and make quilting more manageable.

10. Take Your Time: Quilting is a relaxing and creative process. Take your time, enjoy each step, and don’t rush through the process. Savor the experience of transforming fabric into a beautiful Ohio Star quilt block.

Embrace these tips and techniques as you embark on your Ohio Star quilt block journey. Remember, quilting is not only about the final result but also the joy and satisfaction you find in the process. Happy quilting!

Full Pattern: Click Here

If you’ve enjoyed crafting this block, consider exploring the Ohio Star quilt pattern, such as The Happy Patch Quilt. This pattern allows you to continue embracing the charm and beauty of the Ohio Star motif while creating a stunning finished quilt.

So, gather your supplies, embrace the joy of quilting, and embark on the creative journey of crafting your own Ohio Star quilt block. Whether you’re a seasoned quilter or just starting out, this classic block promises satisfaction and a sense of accomplishment. Happy quilting!

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