Bias Tape Basics: A Complete Guide

Bias tape is a versatile sewing notion made by cutting fabric strips diagonally across the grain. This diagonal cut gives the tape natural stretch, allowing it to curve smoothly around necklines, armholes, and other rounded edges.

What You Need to Know About Bias Tape

• Grain: Cut at 45-degree angle to selvage

• Types: Single-fold, double-fold, and extra-wide

• Widths: Typically ½” to 1″ when finished

• Uses: Binding edges, making ties, decorative trim

How to Make Double-Fold Bias Tape

Step 1: Cut Bias Strips

1. Fold fabric diagonally so selvage meets cut edge

2. Cut along this 45-degree line

3. Cut parallel strips:

   • For ½” finished tape: Cut 2″ wide strips

   • For ¼” finished tape: Cut 1½” wide strips

Step 2: Join Strips (If Needed)

1. Place two strips right sides together at 90° angle

2. Stitch diagonal seam

3. Trim excess fabric

4. Press seam open

Step 3: Fold and Press

1. First fold: Bring both long edges to meet in center

2. Second fold: Fold entire strip in half lengthwise

3. Press thoroughly after each fold

Tips for Sewing Bias Tape Neatly

Preparation:

• Press tape before use

• Use pins or clips to secure, especially on curves

• For tight curves, make small clips along tape edge

Application Methods:

Method A: Machine Application

1. Pin tape to wrong side of fabric

2. Stitch along first fold line

3. Fold tape to right side

4. Topstitch close to edge

Method B: Sandwich Method

1. Open tape and pin to right side

2. Stitch along first crease

3. Wrap tape to back

4. Stitch in ditch from front

Professional Techniques:

• Mitered corners: Fold at 45° angle when turning corners

• Continuous binding: Join strips before starting long edges

• Matching seams: Plan joins to fall at inconspicuous places

Creative Uses for Bias Tape

• Garments: Finish necklines, armholes, and hems

• Quilts: Bind edges instead of traditional binding

• Home decor: Trim pillows, curtains, and table runners

• Accessories: Make bag handles, ties, and decorative accents

Common Questions

Q: Can I use any fabric?
A: Lightweight cotton works best. Avoid heavy fabrics that create bulk.

Q: How much do I need?
A: Measure your edge and add 10-15% for curves and seams.

Q: Store-bought vs. homemade?
A: Homemade allows custom colors/prints; store-bought saves time.

With practice, bias tape becomes an essential tool for creating professional finishes on all your sewing projects.