Adding length to completed sweater

I have finished a sweater for my DGD, bototom up on circulars. Unfortunately, it is too short. The bottom is ribbed. Does anyone know of a way I can remove the ribbing and add a couple more inches to the sweater and then do ribbing? Or something?

This might help. :thumbsup:

Thanks so much for such a quick reply. That looks like just what I need.

I just wanted to say that I am also having this problem. How nice to do a search and find this pop right up. Thanks for the help!