Cold-Formed Steel Floor Trusses: A Superior Choice for Multifamily and Hotel Projects
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Using cold-formed steel (CFS) floor trusses is often a cost-effective and logistically efficient solution for hotels and multifamily projects. As of July 2024, we are typically selling these joists at a cost of $6-7 per square foot including delivery to the job site. For information about custom truss design including roof trusses, check out our page on Engineered Metal Trusses.
Advantages of Cold-Formed Steel Floor Trusses
Cold-formed steel floor trusses offer numerous advantages:
- Cost Savings: They eliminate the need for expensive hollow core concrete. These trusses are also cheaper than bar joists.
- Ease of Installation: CFS trusses are easier to install than bar joists. They are lighter and more maneuverable, making handling simpler. Often, the same contractor can install both the framing and the floor joists. Ease of installation and reduced number of laborers can both lead to substantial cost savings.
- Design Flexibility: Roll-formed floor joists can be easily modified at the design and prefabrication stages to accommodate long, unobstructed runs for pipes and wiring, providing convenience and efficiency for plumbing and electrical contractors.
CFS floor joists can also be tailored to seamlessly integrate with other building systems and modular construction techniques. Please contact us to learn more about solutions for your specific project needs. - Energy Efficiency: The precision manufacturing of CFS trusses allows for tighter structural connections and better fitting of insulation materials, reducing air leaks and thermal bridging. This enhances the building’s ability to maintain consistent indoor temperatures, lowering energy consumption and utility costs. This can be helpful in both multifamily and hotel scenarios where environmental controls are unique for each individual unit.
CFS trusses are also highly recyclable, contributing to a closed-loop materials stream that can reduce waste and the demand for new raw materials. As a result, selecting CFS floor trusses can often be a helpful factor for projects seeking LEED certification or similar sustainability certifications. - Reduced Sound Transmission: Specifically beneficial for multifamily and hotel projects, CFS trusses help reduce sound transmission, leading to a better experience for occupants and fewer complaints or disputes.
Limitations of Cold-Formed Steel Floor Trusses
While CFS floor trusses offer many benefits, there is one notable limitation to consider:
- Span Length: These trusses are typically used for spans up to 30 feet. Depending on the target depth, it may or may not be possible to design trusses for your specific span length.
Despite these span limitations it is worth noting that cold formed steel has an exceptional strength to weight ratio and is a consistent high performer in a wide range of environmental factors- from extreme temperature all the way to high winds and seismic conditions.
Final Thoughts
If CFS floor trusses meet the technical constraints of your project, they offer numerous benefits, from cost savings to ease of handling and installation. These floor trusses can also be optimized for your specific project, including affordances for plumbing/electrical and end conditions designed to interface with your framing system and primary structural elements.
These trusses pack an additional benefit in their ability to reduce sound transmission, improving occupant experience throughout the structure’s lifecycle. Superior thermal efficiency can also be achieved when precision manufactured CFS floor trusses are combined with modern insulating materials. This makes these trusses a particularly appealing choice for both multifamily dwellings and hospitality projects. Contact us today to learn more about how CFS floor trusses can benefit your project.