Secondary Framing Systems

Secondary framing systems provide stabilization members that prevent the mainframe from twisting out of shape and contribute to the structural support while providing the means to attach wall, roof and interior elements. Metallic’s secondary framing parts include cold form shapes, girts & purlins, eave struts, wall base conditions and our Long Bay® System.

Long Bay® System

Metallic’s Long Bay® System utilizes open web truss secondary framing, delivering roof support and shortening the installation time for mechanical and electrical systems.
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Cold Formed Shapes

Purlins, girts, eave struts, base members and gable angles are cold-formed from high-quality steel for strong and durable secondary framing system products that support the wall and roof panels and transfer the load to the frames and help stabilize the building.

Girts & Purlins

A girt is a horizontal structural member in a framed wall that provides lateral support to the wall panel to resist wind loads. Purlins perform the same act for the roof panels. Both are roll-formed “Z” sections.

Eave Struts

Eave struts are roll-formed “C” sections and are secondary steel framing members used for support at eaves and high side peaks.

Wall Base Condition

Each Metallic metal building has a wall base condition along the building’s perimeter that determines exactly how the panels connect to the foundation.