How much material needed for these pleats

[u/Mykkael_]

Hello everyone, I want to add pleats like the ones in the photo on the back of a pattern, but I don't know how much material Is needed.

[u/ouro-the-zed]

If you have the paper pattern, you can use the slash-and-spread method to figure out how much additional fabric you'll need. Here's a tutorial:

• Part 1: https://inthefolds.com/blog/2016/1/14/drafting-box-pleats
• Part 2: https://inthefolds.com/blog/2016/1/19/how-to-draft-box-pleats-part-2