For those of you that have a Montessori style toddlers room, at what age did you introduce it?

I'm interested in making DD's room Montessori style, but I'm curious about the potential mess. Her playroom has all of her toys, books, table easily accessible to her and she throws everything around. Books everywhere, Duplos everywhere, snacks everywhere. I was about to put up a low hanging rail for her play kitchen utensils and decided not to do it because I know she'll just try to hang on it.

Am I just starting too young? Will it be different if it's just her room as opposed to a shared playroom/family room? Any advice or comments highly appreciated!