I just want to give credit where its due, this is From JoAnn after I did a basic search for Chinchilla safe wood.
--- Your timeing is perfect! My MCBA Booklet just came in today's mail, with a list of safe woods for chinchillas. Many times, you can find things you need in your own back yard!
Keep in mind all wood should come from trees that have never been sprayed and should be washed, with a mild soap, bark stripped and oven dried at a very low tempature.
The "safe" trees, according to the article are:
Arbutus
Barberry
Cottonwood
Hazelnut
Cholla
Poplar
Hawthorn
Aspen
Horse apple
Elm
Larch
Pecan
Kiwi
Magnolia
Bamboo
Dogwood
Horse wood
Crabapple
Mulberry
Willow
Manzanita
& Fruit Trees: Apple, Pear & Grape
-----
Justin