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  2. American historic carpentry - Wikipedia

    en.wikipedia.org/wiki/American_historic_carpentry

    The beams are spaced 4 feet (1.2 m) to 18 feet (5.5 m) apart and the planks are 2 inches (5.1 cm) or more thick possibly with another layer of 1 inch (2.5 cm) on the top as the finished flooring could span these distances. The planks may be laid flat and tongue and grooved or splined together or laid on edge called a laminated floor. [24]

  3. Lumber - Wikipedia

    en.wikipedia.org/wiki/Lumber

    Lumber is a sustainable and environmentally friendly construction material that could replace modern building materials (e.g. concrete and steel) given its structural performance, capacity to fixate CO 2 and low energy demand during the manufacturing process. [43] Substituting lumber for concrete or steel avoids the carbon emissions of those ...

  4. Bar stock - Wikipedia

    en.wikipedia.org/wiki/Bar_stock

    Drill rod diameters range from 0.0135 to 1.5 in (0.34 to 38.10 mm); in the United States diameters smaller than 27 ⁄ 64 th of an inch (11 mm) are made in letter drill sizes and number drill sizes, in addition to fractional sizes. Lengths are usually one or three feet (0.3048 or 0.9144 m).

  5. Quercus stellata - Wikipedia

    en.wikipedia.org/wiki/Quercus_stellata

    Quercus stellata, the post oak or iron oak, is a North American species of oak in the white oak section. It is a slow-growing oak that lives in dry areas on the edges of fields, tops of ridges, and also grows in poor soils, and is resistant to rot, fire, and drought. Interbreeding occurs among white oaks, thus many hybrid species combinations ...

  6. US economy grows at 2.8% pace in third quarter on ... - AOL

    www.aol.com/us-economy-grows-2-8-133916189.html

    The American economy expanded at a healthy 2.8% annual pace from July through September on strong consumer spending and a surge in exports, the government said Wednesday, leaving unchanged its ...

  7. Concrete - Wikipedia

    en.wikipedia.org/wiki/Concrete

    Concrete is a composite material composed of aggregate bonded together with a fluid cement that cures to a solid over time. Concrete is the second-most-used substance in the world after water, [1] and is the most widely used building material. [2] Its usage worldwide, ton for ton, is twice that of steel, wood, plastics, and aluminium combined. [3]

  8. Reinforced concrete - Wikipedia

    en.wikipedia.org/wiki/Reinforced_concrete

    Concrete spalling from the ceiling of an office unit (interior) in Singapore, possibly due to rebar corrosion. Reinforced concrete can fail due to inadequate strength, leading to mechanical failure, or due to a reduction in its durability. Corrosion and freeze/thaw cycles may damage poorly designed or constructed reinforced concrete.

  9. Cord (unit) - Wikipedia

    en.wikipedia.org/wiki/Cord_(unit)

    A cord of wood. The cord is a unit of measure of dry volume used to measure firewood and pulpwood in the United States and Canada.. A cord is the amount of wood that, when "racked and well stowed" (arranged so pieces are aligned, parallel, touching, and compact), occupies a volume of 128 cubic feet (3.62 m 3). [1]