Long Bay® System

System Overview

The Long Bay® System is a wide-span secondary framing system designed for metal buildings that require large, unobstructed interior spaces. It supports bay widths of up to 60 feet, allowing greater flexibility in building layout while reducing the number of interior columns.
The system uses open web truss secondary framing to provide roof support and simplify the installation of mechanical and electrical systems.

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How the Long Bay® System Supports Wide-Span Metal Buildings

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The Long Bay® System is engineered to create clear-span interiors while improving installation efficiency and construction accuracy. It is designed as a single-source solution, with coordinated design, fabrication, and scheduling to reduce inconsistencies during the building process. 

Design and Structural Features 
  • Wide-span bays available up to 60 feet 
  • Open web truss secondary framing for roof support 
  • Bolted purlin connections to the main frame 
  • Reduced horizontal bridging requirements 
  • Lighter and stiffer than traditional bar joist systems 
  • Fabricated from light-gauge cold-rolled steel 
  • Engineered for precise fit with no warp or sweep 

 

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Installation and Labor Efficiency 

The Long Bay® System is designed to reduce on-site labor and installation time. 

  • Purlins are bolted rather than welded, eliminating field welding 
  • Horizontal bridging is attached using self-drilling screws 
  • Components can be assembled on the ground and lifted into place 
  • Reduced need for inspections and welding improves jobsite safety 

 

These features contribute to faster project timelines and overall cost efficiency. 

 

Typical Applications 

The Long Bay® System is commonly used in buildings that require large, open interior floor plans, including: 

  • Manufacturing facilities 
  • Warehouses 
  • Distribution centers 
  • Large retail buildings 
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Compatibility and Construction Flexibility 

Wall System Compatibility 

  • Load-bearing masonry 
  • Tilt-wall construction 

 

Roof System Compatibility 

  • Multiple roof and wall system configurations supported 

 

The Long Bay® System interfaces efficiently with various construction methods, allowing flexibility in architectural and structural design. 

 

Manufacturing and Quality Control 

Long Bay® System components are custom-engineered and fabricated for accuracy. Precision manufacturing ensures consistent quality, ease of handling, and efficient erection in the field. 

Frequently Asked Questions

What bay widths does the Long Bay® System support?

The Long Bay® System is offered in bays up to 60 feet, depending on project requirements. 

How does the Long Bay® System differ from traditional bar joists?

The system uses bolted connections instead of welding, requires less horizontal bridging, and is lighter and stiffer than traditional bar joists. 

What types of buildings benefit from the Long Bay® System?

The system is ideal for manufacturing, warehouse, distribution, and large retail buildings that require wide, unobstructed interior spaces. 

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Ceco provides custom-engineered building solutions designed to support efficient construction and flexible building design. 

 

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