I have done a ton of research, and from everything I have found, I am able to draw a pretty firm condition that solid untreated pine wood is safe for building bunny cages with and for chewing. My understanding is…..
Despite popular belief, the oils in pine and cedar woods are not what make them dangerous for rabbits. Instead, these type of woods contain Phenols, (carbolic acid) which are solid aromatic organic compounds. Phenols are dangerous to bunnies and can lead to URI’s, liver damage, and other health problems. However, because Phenols are solids, they are contained in solid wood and are not released until the wood is processed in certain ways. Hence why pine and cedar shavings are not safe to use. Solid wood, however, is safe to use as it doesn’t release the Phenols.
MommaBearAmanda-I was just curious…. What forums suggested unsafe woods, how long ago were they posted, and what was the wood in question? Because I don’t believe I have seen any threads recommending unsafe woods and would like to know if I missed something?