Typically, cement boards are formed into 4-ft. x 8-ft. or 3-ft. x 5-ft. sheets with a thickness of 1/2 in. or 1/4 in. Products with sulfate, sulfur, and polymer bonds are also available.

Hardie board has an imprinted wood grain surface ... For example, vinyl siding and non-HardiePlank fiber cement siding have a lower initial price. However, because HardiePlank lasts for decades ...