Hey Dawn! What kind of rack are you looking for? A great, low-budget option is to use PVC pipes. You glue them together and they create a great "cubby" system for storing shoes.
For more ideas, check out this collection of tutorials for shoe racks.
Here are a couple of great ideas:
Here are some ideas: https://www.hometalk.com/search/posts?filter=shoe%20rack
I love this one! https://www.hometalk.com/17534187/diy-industrial-shoe-rack