Castlewood by AMS manufactures shiplap chimney range hoods in both rustic and smooth plank versions. With a standard height of 42-1/2in., chimney Hoods are available in 30in., 36in., 42in., and 48in. widths. Chimney extensions are available to increase height to 66-1/2in. Available species include alder, cherry, hickory, maple, red oak, and spruce.