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  2. Joist - Wikipedia

    en.wikipedia.org/wiki/Joist

    Between the joists, the area called a joist-bay, and above the ceiling in some old houses is material called pugging, which was used to deaden sound, insulate, and resist the spread of fire. A joist hanger. In platform framing, the joists may be connected to the rim joist with toenailing or by using a joist hanger. [5]

  3. List of construction trades - Wikipedia

    en.wikipedia.org/wiki/List_of_construction_trades

    The following is a list of trades in construction.. Bell hanger installs mechanical and electrical bell systems; Boilermaker, works in nuclear, oil and gas industry, shipyards, refineries, and chemical plants, on boilers, pressure vessels, and similar equipment.

  4. Open web steel joist - Wikipedia

    en.wikipedia.org/wiki/Open_web_steel_joist

    Steel joists and Joist Girders being erected. In structural engineering, the open web steel joist (OWSJ) is a lightweight steel truss consisting, in the standard form, of parallel chords and a triangulated web system, proportioned to span between bearing points.

  5. Lumber - Wikipedia

    en.wikipedia.org/wiki/Lumber

    This type of lumber is compromised if it is altered by holes or notches anywhere within the span or at the ends, but nails can be driven into it wherever necessary to anchor the beam or to add hangers for I-joists or dimensional lumber joists that terminate at an LVL beam.

  6. Knob-and-tube wiring - Wikipedia

    en.wikipedia.org/wiki/Knob-and-tube_wiring

    Knob-and-tube wiring (sometimes abbreviated K&T) is an early standardized method of electrical wiring in buildings, in common use in North America from about 1880 to the 1930s.

  7. Truss - Wikipedia

    en.wikipedia.org/wiki/Truss

    This type of truss is seen in a framed roof consisting of rafters and a ceiling joist, [13] and in other mechanical structures such as bicycles and aircraft. Because of the stability of this shape and the methods of analysis used to calculate the forces within it, a truss composed entirely of triangles is known as a simple truss. [ 14 ]

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