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  2. Timber roof truss - Wikipedia

    en.wikipedia.org/wiki/Timber_roof_truss

    This is an example of a "double roof" with principal rafters and common rafters. A timber roof truss is a structural framework of timbers designed to bridge the space above a room and to provide support for a roof. Trusses usually occur at regular intervals, linked by longitudinal timbers such as purlins. The space between each truss is known ...

  3. Joist - Wikipedia

    en.wikipedia.org/wiki/Joist

    Joist. A single floor or simple set of joists. If the joists land directly above the studs they are stacked. A joist is a horizontal structural member used in framing to span an open space, often between beams that subsequently transfer loads to vertical members. When incorporated into a floor framing system, joists serve to provide stiffness ...

  4. Truss - Wikipedia

    en.wikipedia.org/wiki/Truss

    A truss is an assembly of members such as beams, connected by nodes, that creates a rigid structure. [1] In engineering, a truss is a structure that "consists of two-force members only, where the members are organized so that the assemblage as a whole behaves as a single object". [2] A "two-force member" is a structural component where force is ...

  5. Purlin - Wikipedia

    en.wikipedia.org/wiki/Purlin

    A purlin (or historically purline, purloyne, purling, perling) is a longitudinal, horizontal, structural member in a roof. In traditional timber framing there are three basic types of purlin: purlin plate, principal purlin, and common purlin. Purlins also appear in steel frame construction. Steel purlins may be painted or greased for protection ...

  6. Hammerbeam roof - Wikipedia

    en.wikipedia.org/wiki/Hammerbeam_roof

    Design. A hammer-beam is a form of timber roof truss, allowing a hammerbeam roof to span greater than the length of any individual piece of timber.In place of a normal tie beam spanning the entire width of the roof, short beams – the hammer beams – are supported by curved braces from the wall, and hammer posts or arch-braces are built on top to support the rafters and typically a collar beam.

  7. Warren truss - Wikipedia

    en.wikipedia.org/wiki/Warren_truss

    The Warren truss is a prominent structural feature in hundreds of hastily constructed aircraft hangars in WW2. In the early parts of the war, the British and Canadian government formed an agreement known as the British Commonwealth Air Training Plan which used newly constructed airbases in Canada to train aircrew needed to sustain emerging air ...

  8. Framing (construction) - Wikipedia

    en.wikipedia.org/wiki/Framing_(construction)

    Framing side by side units. The erection of a wooden frame in Sabah, Malaysia. Framing, in construction, is the fitting together of pieces to give a structure support and shape. [1] Framing materials are usually wood, engineered wood, or structural steel. The alternative to framed construction is generally called mass wall construction, where ...

  9. Domestic roof construction - Wikipedia

    en.wikipedia.org/wiki/Domestic_roof_construction

    Ctrs. means centers, a typical line to which carpenters layout framing. Domestic roof construction is the framing and roof covering which is found on most detached houses in cold and temperate climates. [1] Such roofs are built with mostly timber, take a number of different shapes, and are covered with a variety of materials .

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