i tried them around 10 years ago (hardwood type). liked the idea, looked great , had them over Easy-bed for a deep litter type system . was a pain in the rear to clean and keep tidy . i would however try the same again , maybe for the stock birds , only have a few pair now so "could work" . when first tried there were over 16 pair in a 12 ft section , that may have been my downfall .