Reversible SmartSide trim boards are availible in 4/4 and 5/4 thicknesses. Cedar grained are available in 8/4, 5/4, 4/4, and 19/32. All widths and styles are 16' pcs. LP manufactures SmartSide trim with SmartGuard to prevent fungal decay and termite damage. The silica-free substrate works and cuts like wood so there are no special tools required.