How to lengthen a sewing pattern

It's easy to lengthen a sewing pattern piece. If you've never done it before, you should give it a try.

 
There are three methods to modify a sewing pattern: the slash, the seam and the pivot methods. All methods are good, but you need to learn when and how to use each. The subject is so vast I could write a whole book about it –and some people have. In the tutorial below, I'm going to show you the slash method and I will be covering how to lengthen a pattern piece without touching the dart. So you would use this method if you just want the t-shirt longer without changing any of the other dimensions.
 
You can check the tutorial here: https://so-sew-easy.com/lengthen-sewing-pattern/

Source: https://so-sew-easy.com/lengthen-sewing-pattern/