Lumber

Lumber

Timber after it has been sawed and split into planks or other smaller components that can be used as building material.

Industry: Building materials

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Lumber

hardboard/hard board

Building materials; Lumber

A generic term for a panel manufactured primarily from wood fibers that are pressed together under heat and pressure in a large press. Typically used as underlayment for floor coverings.

furring strips

Building materials; Lumber

Lightweight wood or metal strips that even up a wall or ceiling for paneling or drywall. On masontry, furring provides a surface on which to nail.

heat loss

Building materials; Lumber

Heat escaping from a home usually to outside air. Heat gains and losses are expressed in BTU's per hour.

heat gain

Building materials; Lumber

Heat coming into a home from sources other than it's heating / cooling system. Most gains come from the sun.

heartwood

Building materials; Lumber

The mature wood that forms the spine of a tree.

header

Building materials; Lumber

Heavier framing - usually doubled and laid on edge - at the top of a window, door, or other opening. In masonry, a header course of bricks or stones laid on edge provvides strength.