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Metal Building Accessories & Structural Options

Western Steel offers a wide range of metal building accessories and structural options to meet the needs of commercial, industrial, and other building projects. From roof and wall panels to insulation, framing systems, doors, and ventilation options, explore the components available to help meet your building’s functional and design requirements.

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Metal Building Accessories

From insulation and ventilation to roof overhangs, flashing, and more, Western Steel Buildings offer a wide range of metal building accessories to meet your project's functional and design requirements.

Corrugated translucent fiberglass roofing panel against a white background.

Exposed Fastener Panels

PBR, PBU, and PBC panel profiles for roof and wall applications, engineered for durability and versatility across every industry we serve.
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Fiberglass Insulation

Roll and batt insulation for the roof purlin and wall girt cavities of your building, sized to the specifications your project requires.
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Standing Seam (SR2)

Insulated Metal Roof & Wall Panels

A one-piece insulated panel system that speeds installation and delivers a secure thermal envelope for lower long-term energy and operating costs.
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3D rendering of a steel frame structure for a large building.

Primary Framing Options

Clear-span, multi-span, and lean-to frame systems, each custom engineered to meet your building's load requirements and local building codes.
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Sunbelt Rentals - Equipment Rental & Supply Distribution Facility

Secondary Framing & Bracing

Purlins, girts, and bracing systems that transfer wind, seismic, and crane loads safely from the structure down to the building's foundation.
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Green River Public Safety Building

Standing Seam Roof Systems

Concealed-fastener roof panels engineered for a weather-tight seal, with a durable finish that can last up to 60 years on the job site.
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Conventional Framing Systems

Structural framing built for high load-bearing capacity and architectural flexibility on your most demanding commercial construction projects.
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Diagram of a steel building framework with labeled components such as purlins, columns, and bracing.

Pre-engineered Steel Building System

The components and terminology behind our pre-engineered buildings, from bay spacing and rigid frames to the bracing systems we use.
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The Options Behind Every Build

Explore the accessories and structural options available for your metal building, from framing and bracing to insulation, panels, ventilation, and more. Each option can be selected to meet your project’s specific requirements.

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Insulation

Common Nicknames: MBI (Metal Building Insulation), Roll insulation, Batt Insulation, Bag and Sag or Cavity Fill. Fiberglass blanket insulation is used to insulate metal buildings in the roof purlins or purlin cavity, as well as between the girts and the wall panel or in the girt cavity.

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Liner Panel

Liner panels are interior walls of steel paneling. Similar to exterior walls except lighter gauge that are screwed to the framing. Full-height liners run from floor to roof and attach at the top to the eave struts on the sidewalls and to the rake rafter on endwalls. Partial-height liners typically attach to the girt at 7’4″ and extend an inch or two above it (most steel buildings have a girt at 7’4″). Buildings with liner panels must have a base condition that provides a connection point for the bottom of the panel.
An illustration of a wall-mounted air vent with multiple slats.

Louvres

An opening provided with fixed or movable, slanted fins to allow flow of air.
Three white doors side by side; one solid, one with a square window, and one half open with a window.

Man Or Walk Doors

Man or Walk Doors are optimized for metal building, they can be ordered as a single panel or with a glass window. They can also be ordered to open on the left side or right side.
Empty industrial warehouse interior with open doors and a forklift on side.

Roll Up Doors

We can provide roll up doors, however our providers do not install or service them. It is a far better solution for clients to source their roll up doors locally. 

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Ridge Vent

An opening designed to exhaust air, heat, water vapor or other gas from a building or a building component to the atmosphere that is located at the gable peak of the structure. Also comes in low profile.
Metal roof ridge cap on a white background.

Low Profile Ridge Vent

A low profile opening designed to exhaust air, heat, water vapor or other gas from a building or a building component to the atmosphere that is located at the gable peak of the structure.
Illustration of two white framed windows against a white background.

Windows

We can provide windows, however our providers do not install or service them. It is a far better solution for clients to source their windows locally.
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Valley Gutters

Special gutter used to carry off water from attached buildings or multi-gabled buildings. Standard valley gutter is 14 gauge pre-galvanized 10′-0″ sections, field welded in place.

Metal Building Structural Options

Explore structural additions and design features for your metal building, including attachment buildings, canopies, overhangs, mezzanines, hangar doors, and more. Each option can be tailored to your building’s layout and project requirements.

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Attachment Buildings

An Attachment is a building which will attach to any other building in the project. An attachment can be a Lean-to, single slope or gabled building. Attachments can be made Endwall-to-Endwall, Sidewall-to-Sidewall, Endwall-to-Sidewall or Sidewall-to-Endwall. The frames of an attachment that is a lean-to must line up with the columns lines of the building to which it attaches. Any other building type can attach to another building anywhere along the wall to which it attaches.

Overhead yellow gantry crane with blue details and a suspended hook.

Bridge Crane

A load lifting system consisting of a hoist that moves laterally on a beam, girder or bridge, which in turn moves longitudinally ona runway, made of beams and rails.
Construction site with steel frame building, labeled "Overhang" and "Canopy," with a pickup truck in front.

Canopies & Overhangs

Both overhangs and canopies are shown in the building pictures above. Overhangs are available from 6” to 25’0” without additional support depending on the manufacturer, most factories are limited to a 5’0” projection. They change the profile of the building to add aesthetic value. They can be added to one side up to all four. Canopies are longer extensions that require support, they are typically 8’10”-12’0”.

Modern building with large windows and dormer highlighted in a circular overlay.

Dormers

A dormer is a roof structure, often containing a window that projects vertically from a sloping roof. Dormers are commonly used to increase space or allow more natural interior light. The dormer shown above is utilized over the entryway of the Gateway building. We can incorporate many different styles of dormers into our steel building systems.

Empty industrial warehouse interior with open doors and a forklift on side.

Framed Openings

Framed openings are three-sided for doors and four-sided for windows or air vents. Self-framing windows also don’t require a framed opening and can attach instead to the panels.
Modern building with large windows reflecting green hills under a cloudy blue sky.

Facades

An architectural treatment, partially covering a wall, usually concealing the eave and/or the rake of the building or a decorative trim.
Stacked metal construction beams and materials lying in an outdoor storage yard.

Galvanized Frames

Steel coated with zinc for corrosion resistance.
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Hangar Doors

We work with a variety of hangar door manufacturers and will help determine the best fit for your steel hangar. Options for hangar door systems include sliding, bi-fold, hydraulic and more. 

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Mezzanine

An intermediate level between floor and ceiling occupying a partial area of the floor space.
Blue corrugated metal warehouse with multiple garage doors under a cloudy sky.

Partition Walls

Partitions are design flexible and economically feasible for building segmentation. Partition walls can divide buildings parallel to the end wall
Steel framework of an industrial building under construction, highlighted area showing a joint detail.

Parapet Walls

A parapet is a barrier which is an extension of the wall at the edge of a roof, terrace, balcony, walkway, or other structure. Typically buildings with parapet walls will require valley gutters.

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