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A double jettied timber-framed building. The ends of the multiple cantilevered joists supporting the upper floors can easily be seen.. Jettying (jetty, jutty, from Old French getee, jette) [1] is a building technique used in medieval timber-frame buildings in which an upper floor projects beyond the dimensions of the floor below.
An angle bracket or angle brace or angle cleat is an L-shaped fastener used to join two parts generally at a 90-degree angle. It is typically made of metal but it can also be made of wood or plastic. Angle brackets feature holes in them for screws. A typical example use of is a shelf bracket for mounting a shelf on a wall.
A double floor is a floor framed with joists supported by larger timbers.. In traditional timber framing there may be a single set of joists which carry both a floor and ceiling called a single floor (single joist floor, single framed floor) or two sets of joists, one carrying the floor and another carrying the ceiling called a double floor (double framed floor).
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A riser clamp is a type of hardware used by mechanical building trades for pipe support in vertical runs of piping (risers) at each floor level. The devices are placed around the pipe, and integral fasteners are then tightened to clamp them onto the pipe.
The Universal Hallen derrick, replacing the D-Frame option, is a kind of traditional topping lift. The Hallen D-Frame is a steel bracket welded on the mast in the centerline. For an observer standing a beam, the frame has a "D"-shape. The D-Frame supersedes the outriggers and provides a good controlling angle on the guys.
Cross bracing between joists or rafters strengthens the members by preventing sideways deflection. This bracing is known by many names such as herringbone strutting, blocking, bridging, and dwanging.
Hanger Wood is an ancient woodland and Site of Special Scientific Interest (SSSI) in the parish of Stagsden, Bedfordshire in the United Kingdom.Situated approximately one kilometre east of the village of Stagsden, the 24.12 hectares (59.6 acres) woodland was declared a SSSI in 1988, being described by Natural England as "one of the best remaining examples of wet ash-maple woodland in ...