Used to heat and construct more homes than any other material.
Wood is the accumulation of secondary xylem.
The spectrum of colors of wood is produced by impregnation of xylem cells with different-colored compounds. Grain - refers to the alignment of xylem cells. A 1 cm3 oven dried piece is usually used. Milling and Wood Products Use of harvested wood depends largely upon characteristics of the species harvested, and its suitability for various purposes. Cedar, for example, is naturally resistant to insects and to water infiltration, thus making it suitable for shingles and siding.