More than 3 hours of instruction! Learn to select, prepare, and apply interfacing for long-wearing results.

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Interfacing is an essential element in well-made garments. It adds structure and support where needed. The proper interfacing helps make every project look and wear better.

In this course, you will discover everything you need to know about garment interfacing, from identifying different types and choosing the best options to practical preparation and application tips.

This course will help you understand interfacing and how it enhances garment structure: 
  •  Learn the difference between interfacing and interlining 
  • Match the interfacing type to your fashion fabric 
  • Discover specialty options and where to source them 
This course will help you develop expertise beyond the basics. You’ll learn the following:    
  • When it’s necessary to preshrink interfacing and how to do it 
  • Steps to apply fusible interfacing to adhere forever 
  • How to assess the quality of an interfacing 
Take your knowledge further with advanced tips, including: 
  • Why, where, and how to layer interfacing 
  • The correct method to interface bias-cut garments 
  • Fixes you can make, plus how to add interfacing to finished garments 

Meet the Instructor

Joi Mahon has been sewing and designing since she was 6 years old. Today, Designer Joi is a fashion designer, McCall’s licensed pattern designer, and well-known sewing instructor. She has written articles for Threads magazine and authored the books “Ultimate Illustrated Guide to Sewing Clothes” and “Create the Perfect Fit and Fashion Sewing Workshop.” Her teaching specialties include patternmaking,  garment fitting, and advanced construction techniques. Designer Joi’s Sewing Factory is her studio in Sioux City, Iowa, where she creates custom clothing and online learning experiences. You can learn more about her work at and the Perfect Pattern & Fit Club on Facebook.

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