5/4x8 Cumaru Wood Siding

This 5/4x8 Cumaru Wood siding board offers unmatched exterior cladding longevity, backed by Cumaru's 3,540 Janka hardness and a natural lifespan of up to 50+ years. This Class B fire-rated hardwood withstands extreme weather, UV exposure, and heavy foot traffic without chemical treatment — perfect for exterior cladding and accent walls. In stock and ships nationwide — order Cumaru siding online or call 1-844-674-4455 for expert guidance.