Growing melons and Squash in Pots?

I've been trying to advise a lot of people who want to grow in containers. How big a pot do you need for a winter squash plant, and how big for watermelon/cantaloupe? I've done only a little container gardening myself

I did some research and decided to use 20 gallon fabric pots for my watermelons this year. Will be happy to share once they are done.

I am also currently growing yellow crooked neck squash in containers and they seem to be doing well. It is only a 12-14 inch pot, more wide than tall. So, I will see how that goes as well and will let you know once I can. As a backup, I also have green zucchini in a 20 gallon fabric pot too. That seems to be WAY more than enough.