How To Join Border or Binding Strips

In quilting, joining two pieces of fabric seamlessly is essential for creating smooth borders and bindings. This process often involves making a diagonal or bias join rather than a simple straight seam, ensuring the finished edge is even and free of bulky lumps. This video and summary explains the step-by-step method to achieve a professional, angled fabric join with Martyn.

Why Use a Diagonal Join?

A diagonal join helps in several ways. It prevents bulky seams at the border's edge, distributes the fabric's weight evenly, and ensures a smooth, continuous border or binding.

Materials Needed:

• Two fabric strips
• Pins or clips
• Chalk or fabric marker
• Cutting mat and rotary cutter
• Ironing and pressing surface

Step-by-Step Process:

1. Place right sides together and form a 90° angle with the strips, with a slight overhang (quarter inch) on both ends.

2. Use a chalk marker to draw a line from one corner to the opposite corner, creating a 45° angle.

3. Secure the fabric with pins or clips to ensure the edges stay aligned during stitching.

4. Sew from start to end to maintain a consistent seam allowance, typically ¼ inch.

5. Cut excess fabric, trimming the seam allowance to reduce bulk, usually to ¼ or ½ inch.

6. Press the seam open for a flat, smooth finish.

Key Tips

• Use a quarter-inch seam allowance for accuracy
• Mark the diagonal line clearly for precise stitching
• Press seams open to avoid puckering and lumps
• Always trim excess fabric to prevent bulk

Achieving a perfect diagonal join enhances the overall appearance of your quilt or border. Remember to always mark clearly and pin securely before sewing, use a sharp rotary cutter for precise trimming, and press seams flat for a neat finish. You can practice on scrap fabric to perfect your technique.

By mastering this method, you ensure your borders and bindings are professional-looking, with evenly distributed fabric and no bulky seams. Thank you for joining us at Sweet Pea Studio—happy quilting!