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Anchor Bolts
Bolts used to anchor structural members to a concrete floor, foundation, or other masonry support. Generally refers to bolts that secure columns and jambs to concrete slabs.
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Base Plate
A shop-welded, pre-punched plate on the portion of a structural column that rests on the concrete foundation and is secured by anchor bolts.
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Bay (Interior)
The space between frame centre lines in the lengthwise direction of the building.
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Brace Rods
Rods used on roof and sidewalls to transfer wind, seismic, and lateral crane forces to the foundation.
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Built-up Section
A structural member — usually an I shape — made from individual web and flange flat plates welded together.
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"C" Section
A member cold-formed from steel coil in the shape of a C; used primarily in bearing frame end walls and framed openings.
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Canopy
Any overhanging or projecting structure with its extreme end unsupported.
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Clear Span
The distance or clear and unobstructed opening between two supports of a beam; with a rigid frame this is generally less than the nominal building width.
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Column
A primary structural member used vertically to transfer loads from roof beams, trusses, or rafters to the foundation.
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Corner Column
A C-channel or I-section located at the corner of a bearing frame end wall, or a primary frame column at a main end frame.
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Design Code
The building code used in a particular area to govern building design.
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Eave Canopy
A roof extension beyond the sidewall of a building.
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Eave Fascia
Trim used to close off the top of sidewall panels in lieu of an eave gutter or eave trim.
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Eave Height
The vertical dimension from finished floor to top of eave strut.
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Eave Strut
A cold-formed structural member at the eave supporting roof and wall panels; transmits forces from wind on the end wall from roof bracing to wall bracing.
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Erection
The assembling of pre-engineered components to form a complete structure.
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Erection Drawing
Drawings showing the roof framing plan, wall framing plan, end wall framing, cross section, and other parts of the building.
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Frame
Primary structural members, made up of columns and rafters, which support the secondary framing of girts and purlins.
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Gable
The triangular portion of the end wall of a building, directly under the sloping roof and above the eave line.
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Girder
A main horizontal or near-horizontal structural member that supports vertical loads.
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Girt
A secondary horizontal structural member attached to sidewall or end-wall columns to which wall covering is attached and supported horizontally — usually a cold-formed Z shape.
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Gutter
A light-gauge channel member installed at the eave, valley, or parapet to carry water from the roof to drains or downspouts.
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Insulation
Any material used in building construction for the reduction of thermal transfer, or in some cases for fire hazard reduction.
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Louver
An opening provided with fixed or adjustable blades to allow airflow.
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Mezzanine
A second floor above the ground floor — an intermediate level between floor and ceiling, occupying a portion of the floor space.
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Panel
Ribbed configuration metal sheets used for roof and wall covering.
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Purlin
A secondary, cold-formed horizontal structural member located in the roof to support sheeting; itself supported by the rafters.
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Rafter
A fabricated roof-framing member that supports the roof secondary framing members.
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Ridge Vent
Circular or continuous vent placed at the ridge to produce air movement through the building.
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Sag Rod or Angle
Tie rods or angles located between the webs of girts or purlins to provide lateral web stability and limit deflection.
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Self-drilling Screw
A fastener that drills and taps its own hole. Used for attaching panels to purlins and girts.
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Self-tapping Screw
A fastener that taps its own threads in a pre-drilled hole. Used for attaching panels and stitching panel sidelaps.
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Skylight
A roof accessory to admit light, normally mounted on a curbed framed opening.
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Trim
Light-gauge metal used in the finish of a building — especially around openings and at intersections of surfaces. Often referred to as flashing.
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Turn Key Construction Service
Construction service that includes all phases of construction in a single contract.
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"Z" Section
A girt or purlin; a member cold-formed from steel coil in the shape of a block Z with stiffener lips.