The Straight Grain Binding Calculator is designed to help quilters quickly determine how many width-of-fabric (WOF) strips they need to cut and the total amount of fabric required for straight grain quilt binding.
Straight grain binding is cut along the lengthwise or crosswise grain of the fabric, meaning the strips can run parallel or perpendicular to the selvage. This method is efficient and easy to cut, with minimal fabric waste, and works well for quilts with straight edges.
For projects with curves or rounded corners, bias binding is recommended. It is cut at a 45° angle to the fabric’s grain. Bias binding uses more fabric and requires more cuts, but has greater stretch and flexibility, making it ideal for projects with scalloped edges or curvy corners. By focusing on straight grain binding, this calculator streamlines yardage planning for most traditional quilts where flexibility isn’t as critical.