Here, we'll explain how to adjust a pattern to fit multiple sizes.
In this article, we'll explain the method in general terms and outline its main points.
If you’d like to take it a step further—to understand when adjustments are needed and when they aren’t, and to learn how to make adjustments to all types of garments—we invite you to take our online course, “Adjusting Your Patterns: The Essentials.”
When should you alter a pattern?
Before you begin making any alterations, keep in mind that it isn't always necessary to make adjustments if your measurements differ from those in the size chart.
In fact, not all clothing requires alterations. Take tops, for example: the important measurements are the bust and, sometimes, the hips. The waist measurement isn’t important at all. Because if the bust and hips fit, the waist will fit too!
Similarly, when it comes to bottoms, the key measurements are waist and hip circumference.
For dresses, we'll always check the bust measurement. As for the other measurements, it will depend on the dress's cut.
How to Adjust a Pattern for Multiple Sizes
The basic principle is to draw a new line on our pattern between the two sizes to be adjusted.
Let's take the example of a blouse that needs to be adjusted to fit a size 38 bust and a size 42 hip measurement.
1) Identify the bust line and the hip line
2) Draw a new line connecting 38 and 42.
3) Cut out the new pattern!
The Little Details
Don't forget to mark the notches if the pattern line includes any.
When making an alteration, all affected parts must also be altered (front, back, certain facings, etc.)
If your pattern includes a bust dart, start your adjustments 4 cm below the dart.
To take it a step further and become a pro at pattern adaptation, click here:Adapting Your Patterns: The Essentials.
