How to Shorten a Prom Dress
You can learn how to shorten a prom dress with little or no help, in the comfort of your own home. If you find your perfect dress but it seems to be a little too long, do not fret. If you have some sewing experience, it can come in handy. Some dresses may have more than one layer that needs to be shortened.
First: Shortening ball gowns or fuller dresses
Depending on how much shorter you need your dress, you can add crinolines. Crinolines are what women used years ago, in order to make their dresses "puff" out. They are basically hoop skirts that you wear under a regular long dress. Imagine Cinderella's dress and you can choose how large you want your skirt to be. These can be found in craft stores and possibly in some thrift stores.
Second: Shortening a prom dress
You can shorten a prom dress using the pick up skirt, no sew, method. Just fold the fabric under and secure it with pins or even staples. You can hot glue gems or lace over the pins or staples to hide them. The bottom has a ruffled look and no one has to know the difference.
Third: Two piece dresses
This is the fastest and easiest method. Just fold the waistband in or down until you have the desired length. If the top of the dress covers a good part of the lower half, you can even cut off the top of the skirt in order to shorten it.
Fourth: Ruching - for advanced sewers
You can add ruching (pronounced ROO-shing) to a dress to make it shorter. This can be done at the waist or along the side seam.