Colorado Cowboy
Super Moderator
That's what this is called...fiber cement siding.We bought it at Menards which lists it as "Fiber Cement" siding. Great product but heavy as heck.
http://www.menards.com/main/building-materials/siding/panel-siding/4-x-8-grooved-8-oc-fiber-cement-panel-siding/p-1444450980015-c-13382.htm?tid=8524842292862694295