What is the difference between body measurements, vs. finished garment measurements? Body measurements are taken at the bust, waist, and hips to determine sizing, and give you an idea of the dimensions that you’ll be designing for.
As you may have guessed from the name, finished garment measurements are the measurements of the actual garment. They are also taken at the bust-line, waist, and hips, plus 10 or more other points needed to make a pattern. Typically, they have room for ease. The FGM tells you how a garment will fit at the end of production.
How much these two measurements differ depends on the structure of the garment you are creating, and the fabric you choose to use. If it is a fitted look, then these two measurements will be very similar. If you were creating a body-con look or leggings with fabric that is meant to stretch than the finished garment measurements might even be smaller than the average body measurements.
Now, if you were creating a voluminous dress, it would be a little different. The finished garment measurements would be bigger than the body measurements. The ease of a garment dramatically changes the way it fits. The ease on a garment could be distributed evenly, or it could have more ease in the waist, but a fitted bust.
These different factors illustrate why it’s important to have a back-line body measurement that corresponds to your customer, before creating the finished garment measurements.