Some chinchillas will have a preference in which type of wood they like as a chew. For chinchillas make sure the wood source has never been sprayed with chemicals and has been properly processed (including washing, boiling and drying).
Safe Wood
Apple
Arbutus
Ash
Aspen
Beech
Birch
Cholla (a form of cactus)
Cottonwood
Crabapple
Dogwood
Elm
Fir
Hawthorn
Larch
Magnolia
Manzanita
Mulberry
Pine (kiln dried)
Pear
Pecan
Poplar
Sequoia (Redwood)
Willow
Arbutus
Ash
Aspen
Beech
Birch
Cholla (a form of cactus)
Cottonwood
Crabapple
Dogwood
Elm
Fir
Hawthorn
Larch
Magnolia
Manzanita
Mulberry
Pine (kiln dried)
Pear
Pecan
Poplar
Sequoia (Redwood)
Willow
Unsafe Wood
Cedar
Pine that hasn't been kiln dried
Apricot
Cherry
Peach
Prune
Plum
Nectarine
Pine that hasn't been kiln dried
Apricot
Cherry
Peach
Prune
Plum
Nectarine