Humidity, temperature, oxygen level, air circulation...

All will have an influence on the curing time. I would say wait MONTHS from completion before introducing animals. Just to be cautious.

The idea and materials are great. I think that if I was to produce these enclosures for my own snakes, or to sell, I would wait months. Perhaps build them during the summer and wait until the following spring to call them "cured" and safe for use.

I still plan to build some structures using this method. Perhaps background walls with shelves and nooks for plants, perhaps water features. It's a great idea.

However, my current project requires me to have snakes moved in by June or July. I will be using natural or already cured materials this time around.

I still want to try building stuff for reptiles from this idea. I just won't be using them this season.