Do I have to adjust my roomdimensions to give 40 hz space

Hello everybody, This is my first post. I do have a question; I am designing a space to be used as a controlroom in my house, but I can't remember how the rules are. If I want to go as low as 40 hz, it's wave has a lenght of 8,5 meters ( 27,887139 feet ). So if I want to work with 40 hz, do I need to be my room at least 8,5 meters ? What happens to my mixing if my room is smaller ? Can I provide a full frequency mix in a smaller room ? The room will include all the acoustic treatment with bass traps etc. Thank you for your answers