Accessory: A supplementary building product, such as a door, window and, skylight frames, louver, etc.

Anchor Bolts: Bolts used to anchor structural members to a concrete floor, foundation or other support.


Anchor Bolt Plan: A plan view of a building(s) foundations showing all dimensions and sections required to properly locate the anchor bolts, including the projections of the bolts above the concrete surface, required recess, etc. Column reactions (magnitude and direction), and base plate dimensions are also included.

Angle: A hot rolled member with two legs forming a 90 o angle. See Lintel


Approval Drawings: Drawings sent to the customer to verify design and dimensions and to verify the sales contract description of materials and services the manufacturer has agreed to furnish.

Assembly: Two or more components bolted together.

Auxiliary Loads: All specified dynamic live loads, other than the basic design loads, which the building must safely withstand. Examples are loads imposed by crane systems, material handling systems and impact loads.

Back-up Plates: Additional plates used in connections to provide sufficient bolt grip, allow for erection tolerances, or increase strength.

Base or Curb Angle: A continuous angle fixed to the floor slab.

Base Plate: The endplate of a column, which rests on the supporting substructure surface.

Bay: The space between the center lines of frames or primary supporting members in the longitudinal direction of the building. Also called Bay Spacing or Bay Length.

Beam: A horizontal structural member designed primarily to resist moments.

Beam with connection: for column above: Beam with holes and stiffener plate for bolted header connection for column above.

Metal 3

Beam with end-to-end connection: Holes for bolts for end-to-end connection

Beam with end-to-end connection

Beam for T Connection: Holes for bolts for T Connection

Beam with holes for Header connection: Beam with holes for header connection at mid span.

Beam with holes for Header connection

Beam with clips for Header connection:

Beam with clips for Header connection:

Beam with holes for Column below:

Beam with holes for Column below

Bent Plate: A plate bent to form any angle.

Bill of Materials: A list of items or components used for fabrication, shipping, receiving, and accounting purposes.

Bolts: High strength structural bolts.

High strength structural bolts

Builder: A general contractor or sub-contractor responsible for providing and erecting pre-engineered buildings.

Building Codes: Regulations developed by recognized agencies establishing minimum building requirements for licensing, safety and functionality purposes such as setbacks, fire regulations, spacing and clearances. Building codes usually address acceptable design codes. An example of a building code is the Uniform Building Code (UBC).

Building Width: The lateral width of the building measured from out to out of sidewall steel lines.

By-pass Girt: The girt which passes continuously along the outside flanges of the columns.

"C" Section: A member formed into a "C" shaped profile by cold roll-forming from coils.

Cables: Used for cable bracing. Can also be used to operate ridge vent dampers and for temporary bracing.

Cantilever: A projecting beam that is supported and restrained at one end only.

Canopy: An overhanging or projecting roof structure, below the eave level, supported at one end only.

Cap Plate: A plate located at the top of a column or end of a beam. Also referred to as End Plate.

Catwalk: A narrow walkway used to provide access to mechanical equipment normally supported on roof platforms.

Channel (Hot Rolled): A member formed, while in a semi-molten state at the steel mill, into a "C" shaped profile having standard dimensions and properties specified by a relevant standard specification.


Checkered Plate: Flat hot rolled plate with raised checkered design to prevent slipping; used for industrial equipment platforms, catwalks, stair treads, etc.

Checkered Plate

Clear Height: The vertical dimension from the finished floor level to the lowest underside point of the rafter.

Clear Span: A building without internal columns.

Clip: A plate or angle used to fasten two or more members together.(see beam with header connection)

Coil: A roll of steel sheet or wire.

Cold-Formed Member: A light gauge structural member produced from coiled steel stock running through a series of rolls at normal room temperatures.

Collateral Load: The static load other than the basic design loads such as sprinklers, mechanical and electrical systems, ceilings, etc.

Column: A vertical structural member used in a building to transfer loads from the main roof beams, trusses or rafters to the foundation.

Adjustable Column:

Adjustable Column

Fixed Column: With drilled hole bolts for beam below.

Fixed Column

Fixed Column: Structural fixed HSS with 4 hole base plate bolts beam below.

Fixed Column

Fixed Column: Structural fixed HSS with 2 hole base plate bolts beam below.

Fixed Column

Fixed Column: Structural fixed HSS with 2 hole base plate bolts beam below.

Fixed Column

Column Base Plates:

Column Base Plates

Component: An independent part of an assembly.

Connection Clips:

Connection Clips

Continuous Beam: A beam which has more than two points of support.

Cross Section: A view formed by a plane cutting through an object usually at right angles to its axes.

Curb: Raised flashing around roof openings to form waterproof openings. See also Roof Curb.

Dead Load: The self weight of the pre-engineered building structure including all its components such as frames, floors, secondary members, sheeting, bolts, etc.

Design Codes: Regulations developed by recognized agencies establishing design loads, procedures, and construction details for structures. Examples are: MBMA, AISC, AISI, AWS, etc.

Diagonal Bracing: See Brace Rods/Cables.

Door Guide: An angle, channel, or proprietary product used to restrain a door leaf or curtain during its opening and closing.

Edge Distance: The perpendicular distance between the plate edge and the center of the bolt hole.

Elevation: (a) Distance above or below a prescribed datum or reference. (b) Engineering term referring to any wall view of a structure.

End Bay: The first or last bay in the building, as opposed to interior bay. It is the spacing between the outside face of the outer flange of the endwall columns and the center line of the first interior column.

End Lap: A term used to describe the lap at a purlin location where the end of one panel overlaps the end of the panel below

End Plate: A plate welded at the end of a member.

Erection: The on site assembling of pre-fabricated components to form the complete structure.

Erection Drawings: Drawings and erection instructions which identify all the individual components in sufficient detail to permit the proper assembly of all parts of the metal building system furnished by the seller.

Expansion Joint: A weather-tight joint across the width of the building allowing for expansion and contraction.

Eye Bolt: Used in for tensioning cable braces.

Eye Bolt