How thick does poplar bark siding need to be?
Parton Bark Siding sees that the minimum thickness for outdoor use is 9/16″, and the maximum thickness stands for us at 1 3/8″. The majority of our poplar bark shingles are around 3/4″ to 1″ thick. This range of thickness blends nicely when installed (see Home Porfolio page). Bark cladding under 9/16″ should be used for indoor purposes only.