Big Apple Joist® is a high-performance cold-formed steel floor joist system engineered for faster installation, reduced labor, and superior structural efficiency. Designed with large pre-punched oval openings, it allows for easy routing of mechanical, electrical, and plumbing systems—eliminating the need for field cutting and saving valuable time on the job site.

With an exceptional strength-to-mass ratio, this joist system delivers durability, stability, and long-span performance while remaining lightweight and easy to handle. Its innovative design also enhances thermal efficiency, fire resistance, and acoustic performance, making it ideal for both residential and commercial construction.

Key Features

• ICC-ES approved floor joist system
• High strength-to-mass ratio for efficient structural performance
• Large pre-punched oval holes for easy MEP integration
• Reduces need for field modifications and labor costs
• Lightweight and easy to install
• Excellent fire, thermal, and acoustic properties
• Compatible with steel and concrete framing systems
• Galvanized steel for long-term corrosion resistance

Applications

• Floor joist systems in residential construction
• Multi-family and commercial buildings
• Mixed-use developments
• Steel and concrete framing systems
• Projects requiring efficient MEP integration

Design Advantages

• Faster Installation: Pre-punched openings reduce field labor
• Improved Efficiency: Streamlines utility layout and coordination
• Versatile System: Integrates with multiple framing components
• Enhanced Performance: Provides strength, durability, and stability

Specifications

• Material: Cold-Formed, Hot-Dip Galvanized Steel
• Standards Compliance: Meets or exceeds ASTM C955, C1007, A924/A924M, A653/A653M, C1003/C1003M

Available Web Depths:

• 8" (5" x 7.5" hole)
• 10" (7" x 9.25" hole)
• 12" (9" x 11.75" hole)
• 14" (9" x 11.75" hole)
• 16" (9" x 11.75" hole)

Available Flange Widths:

• 1.5"
• 2"
• 2.5"
• 3"
• 3.5"

Performance Benefits

• Fire Resistance: Designed to support fire-rated assemblies
• Thermal Efficiency: Reduced conductivity due to large punch-outs
• Acoustic Performance: Helps improve sound insulation in floor systems

Why Choose Big Apple Joist®?

Big Apple Joist® offers a smarter, faster, and more economical solution compared to traditional floor joist systems—helping contractors reduce installation time, minimize labor, and improve overall project efficiency.

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2. Our team reviews availability and pricing
   
3. We follow up with a detailed quote and next steps
   

Special order items are sourced to your project requirements. Pricing, availability, and lead times vary by product and quantity.

• Local pickup options available
• Delivery available depending on product and location
• Lead times vary based on availability and order size

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