Whether you are designing a single or multi-story structure, Vulcraft manufactures a complete range of efficient, cost-effective steel joists that can add value, strength, and style to your structure. With a wide range of joist options that can be custom fabricated to specification, Vulcraft has the right product to help architects and engineers bring their unique vision to life.
Understanding Joist Designations
The designation shown provides a guide on how to properly read and specify steel joists. Understanding this information is critical to ensure that the correct joists are provided to support the loads necessary for each and every project. Whether using specific loading or the standard SJI designation, this information should be clearly specified on the contact drawings. For more information about this, please review Vulcraft’s joist catalog, available via the Resources Page on this website, or Contact Us.
STANDARD JOIST PROFILES
K-SERIES
K-Series joists are light, highly efficient structural components. Their open-web configuration gives you space to conceal pipes, electrical, and plumbing, which can reduce height, adding value to your project.
To learn more, including loading capacity information, please refer to our Technical Information. While this information is for common situations, not every project is common. For answers to any questions, please reach out and TALK TO AN EXPERT.
UTILIZING OUR DESIGN TOOLS
Vulcraft’s Design Tools allow you, as the designer, to obtain custom design information for your project, look at scenarios, and allow you to find the highest value solutions for your project.
Turn your combined uniform and concentrated loading into shear and moment diagrams. Other outputs include suggested joist designation, bridging requirements, and maximum chord width.
Our Joist Analysis Aid will evaluate your joist for combined uniform and concentrated loading, and will suggest where webs will see a stress reversal and a designation and bridging.
Our Joist Design Tools can help you find the most economical joist depths, perform shear and moment comparisons, analyze vibration, and much more.
KCS-SERIES
KCS-Series Joists are an ideal solution to provide maximum flexbility when supporting not only roof loads, but concentrated loads such as rooftop units. They are designed for constant shear and constant moment.
To learn more, including loading capacity information, please refer to our Technical Information. While this information is for common situations, not every project is common. For answers to any questions, please reach out and TALK TO AN EXPERT.
LH-SERIES
LH-Series joists are capable of supporting larger loads and are typically used where longer spans and special profiles (such as gable joists and arched joists) are needed in varying conditions.
To learn more, including loading capacity information, please refer to our Technical Information. While this information is for common situations, not every project is common. For answers to any questions, please reach out and TALK TO AN EXPERT.
UTILIZING OUR DESIGN TOOLS
Vulcraft’s Design Tools allow you, as the designer, to obtain custom design information for your project, look at scenarios, and allow you to find the highest value solutions for your project.
Turn your combined uniform and concentrated loading into shear and moment diagrams. Other outputs include suggested joist designation, bridging requirements, and maximum chord width.
Our Joist Analysis Aid will evaluate your joist for combined uniform and concentrated loading, and will suggest where webs will see a stress reversal and a designation and bridging.
Our Joist Design Tools can help you find the most economical joist depths, perform shear and moment comparisons, analyze vibration, and much more.
DLH-SERIES
DLH-Series joists, also known as Deep Longspan joists, are used for longer span conditions that need to support larger loads. They vary in depths from 52” through 120” and spans up through 240’, and allow for special profiles to accommodate a variety of conditions.
To learn more, including loading capacity information, please refer to our Technical Information. While this information is for common situations, not every project is common. For answers to any questions, please reach out and TALK TO AN EXPERT.
UTILIZING OUR DESIGN TOOLS
Vulcraft’s Design Tools allow you, as the designer, to obtain custom design information for your project, look at scenarios, and allow you to find the highest value solutions for your project.
Turn your combined uniform and concentrated loading into shear and moment diagrams. Other outputs include suggested joist designation, bridging requirements, and maximum chord width.
Our Joist Analysis Aid will evaluate your joist for combined uniform and concentrated loading, and will suggest where webs will see a stress reversal and a designation and bridging.
Our Joist Design Tools can help you find the most economical joist depths, perform shear and moment comparisons, analyze vibration, and much more.
JOIST GIRDERS
Joist Girders function as a primary framing member, supporting equally-spaced concentrated loads from open web steel joists. Joist girders, along with steel joists in general, are highly-efficient structural members due to their truss-like configuration. For more information, see our Joist Girders catalog, or Contact Us.
Joist Girders Standard Weight Tables
UTILIZING OUR DESIGN TOOLS
Vulcraft’s Design Tools allow you, as the designer, to obtain custom design information for your project, look at scenarios, and allow you to find the highest value solutions for your project.
Turn your combined uniform and concentrated loading into shear and moment diagrams. Other outputs include suggested joist designation, bridging requirements, and maximum chord width.
Our Joist Analysis Aid will evaluate your joist for combined uniform and concentrated loading, and will suggest where webs will see a stress reversal and a designation and bridging.
Our Joist Design Tools can help you find the most economical joist depths, perform shear and moment comparisons, analyze vibration, and much more.
ADDITIONAL RESOURCES
VIEW RESOURCE LIBRARY
ADDITIONAL RESOURCES
VIEW RESOURCE LIBRARY
BUILDING AMERICA
View examples of our standard joists in real-world applications.
In accordance with the standards set by the Steel Joist Institute (SJI), Vulcraft manufactures a full range of joists, including standard joists, joist girders, and composite joists, designed to work compositely with the concrete slab that is placed on top of the steel deck, creating a very efficient floor system.
For additional selection, specification, and detailing information find us at: 
STANDARD JOIST
LOAD TABLES
K-SERIES
- K-SERIES Standard ASD Load Table
- K-SERIES Standard LRFD Load Table
KCS-SERIES
- KCS-SERIES Standard ASD Load Table
- KCS-SERIES Standard LRFD Load Table
LH-SERIES
- LH-SERIES Standard ASD Load Table
- LH-SERIES Standard LRFD Load Table
DLH-SERIES
- DLH-SERIES Standard ASD Load Table
- DLH-SERIES Standard LRFD Load Table
JOIST GIRDER LOAD TABLES
- Joist Girders Standard Weight Tables
JOIST ONLINE DESIGN TOOLS
TALK TO AN EXPERT
JOIST GIRDERS
JOIST GIRDER LOAD TABLES
- Joist Girders Standard Weight Tables
JOIST ONLINE DESIGN TOOLS
TALK TO AN EXPERT
