To make double-fold bias tape, you start by cutting fabric strips four times the width you want the finished bias tape to be.
Making your own double-fold bias tape allows you to match fabrics perfectly or use unique prints not available in pre-made options. The key is accurately calculating the initial width of your fabric strips.
Calculating the Fabric Strip Width
According to the reference, the rule for cutting fabric for double-fold bias tape is straightforward:
- Desired Finished Width x 4 = Fabric Strip Width
This calculation accounts for the multiple folds the fabric will undergo to create the finished double-fold tape.
Example Calculation
Let's look at a common example:
- Goal: Create double-fold bias tape that finishes at 1/2 inch wide.
- Calculation: 1/2 inch (desired width) x 4 = 2 inches
- Action: You will need to cut fabric strips that are 2 inches wide.
Here's a quick table showing this:
| Desired Finished Double-Fold Width | Fabric Strip Width to Cut |
|---|---|
| 1/2 inch | 2 inches |
| 1/4 inch | 1 inch |
| 1 inch | 4 inches |
Steps to Make Double-Fold Bias Tape
Once you've cut your fabric strips to the correct width (desired width x 4), the process generally involves these steps:
- Join Strips (if needed): Sew the short ends of your strips together at a 45-degree angle to create one long continuous strip.
- Press in Half: Press the fabric strip in half lengthwise, wrong sides together.
- Press Raw Edges to Center: Open the strip, then fold each raw edge inward to meet the center crease you just made and press again.
- Fold in Half: Fold the strip in half along the original center crease, encasing the raw edges. Press firmly.
Following these steps with strips cut to the proper width (four times the final desired width) will result in double-fold bias tape ready for application.
