Has anyone used this in their coop? A lady I work with gave us a HUGE amount of 2x6's, mostly 8 foot lengths when she re-did her deck last year. I can't think of any reason it would be bad for the chickens, but wanted to know if anyone knew of any drawbacks. Or, if you have used it, how? We are attempting to build an 8x8 coop using as many recycled/freebie/cheap materials as we can. Thanks!