K-Series Bar Joists

K Series bar joists are designed for use typically with lighter loads and are most common in roof design. K Joists are used typically where shorter span conditions are required.

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    Disclaimer: Bar joists are an engineered product and can only support their required design load if the “system” is designed and installed properly. The Engineer-of-Record (EOR) is responsible of designing this system that includes but not limited to bridging, supports, connections, anchors and specific design loads. It is the purchasers responsibility to ensure that joists and bridging purchased will be selected, erected and installed properly.


    The use of K Series joists in the framing of floors and roofs offers huge advantages when compared to wood truss and steel beam systems. These joists easily handle spans that wood systems cannot handle while their lightweight construction makes them much less costly than steel beams. K Series joists range in depth from 10” to 30” and can span up to 60’.

    About O’Donnell Metal Deck:

    These welded-steel products are used to support a building’s roof and floors. They are custom engineered to suit the design of each building. In addition to traditional designs, we produce bowstring, arched, scissor, double-pitched, and single-pitched K joists.

    We offer fast shop drawings and shop billing of K Series bar joists for fast delivery to the East Coast — proudly supplying projects in Maryland, Washington DC, Virginia, West Virginia, Ohio, Tennessee, North Carolina, South Carolina, Delaware, New York, New Jersey & Pennsylvania.

    Fast Bar Joist Shop Drawings:

    Our ability to provide fast bar joist approvals has made us one of the best bar joist supply and detailing companies in the United States. Our process begins with fast and direct communication with our customers and stakeholders to ensure maximum productivity and timeliness. The bar joist drawing process is as outlined below.

    Approval Drawings

    Our team gathers, reviews and interprets information from the contract bid documents.

    EOR Review

    Our steel bar joist layout is submitted to the design team for missing information or discrepancies to solve potential issues.

    BOM Fabrication

    Once approved by the engineer, our detailers submit their bills of material to be fabricated.

    Field Use Plans

    We'll issue easy to read steel bar joist erection plans for field use to save installation time.


    Learn More about Steel Bar Joist Shop Drawings.

    Bar Joist Details:

    Sloped Joist Seats:

    Our in house detailing is capable of detailing and accommodating joists with sloped seats.

    Top Chord Extensions:

    Typically used to create awnings or support a wide array of structural elements.

    Bottom Chord Extensions

    Bottom chord extensions for hanging drop ceilings or additional structural elements.

    Seat Depth:

    K-Series: 2 ½"
    LH-Series: 5"
    DLH-Series: 7 ½"

    K-Series Joist Data

    Depth (in.) 10
    Approx. Wt. (lbs.) 5.0
    12K1 12K3 12K5
    Depth (in.) 12 12 12
    Approx. Wt. (lbs.) 5.0 5.7 7.1
    14K1 14K3 14K4 14K6
    Depth (in.) 14 14 14 14
    Approx. Wt. (lbs.) 5.2 6.0 6.7 7.7
    16K2 16K3 16K4 16K5 16K6 16K7 16K9
    Depth (in.) 16 16 16 16 16 16 16
    Approx. Wt. (lbs.) 5.5 6.3 7.0 7.5 8.1 8.6 10.0
    18K3 18K4 18K5 18K6 18K7 18K9 18K10
    Depth (in.) 18 18 18 18 18 18 18
    Approx. Wt. (lbs.) 6.4 7.2 7.7 8.4 8.9 10.1 11.6
    20K3 20K4 20K5 20K6 20K7 20K9 20K10
    Depth (in.) 20 20 20 20 20 20 20
    Approx. Wt. (lbs.) 6.5 7.2 7.7 8.4 8.9 10.1 11.6
    22K4 22K5 22K6 22K7 22K9 22K10 22K11
    Depth (in.) 22 22 22 22 22 22 22
    Approx. Wt. (lbs.) 7.3 7.7 8.5 9.0 10.2 11.7 11.9
    24K4 24K5 24K6 24K7 24K8 24K9 24K10 24K12
    Depth (in.) 24 24 24 24 24 24 24 24
    Approx. Wt. (lbs.) 7.8 7.9 8.5 9.0 9.4 10.3 11.7 13.5
    26K5 26K6 26K7 26K8 26K9 26K10 26K12
    Depth (in.) 26 26 26 26 26 26 26
    Approx. Wt. (lbs.) 8.1 8.6 9.0 9.7 10.4 11.8 13.7
    28K6 28K7 28K8 28K9 28K10 28K12
    Depth (in.) 28 28 28 28 28 28
    Approx. Wt. (lbs.) 8.9 9.2 9.8 10.5 11.8 14.5
    30K7 30K8 30K9 30K10 30K11 30K12
    Depth (in.) 30 30 30 30 30 30
    Approx. Wt. (lbs.) 9.6 10.0 10.6 11.9 13.3 15.0


    SJI Certified Manufacturers:

    Every open web steel joist that we supply is manufactured to exact specifications by Steel Joist Institute (SJI) members, which means that you can be assured of the highest quality product.

    Made in America:

    Our products are made with US made steel. When mill certificates are required, we can provide you the material's physical and chemical properties. Contact Us for more information regarding mill certs for your project.

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