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    Home / Joist Investigation Form

    Joist Investigation Form

    Engineers, Architects, Specifying Professionals, Contractors and others trying to identify existing joists found in the field can now fill out the form below, or they can use this downloadable form to provide the necessary information to the SJI office. Please fill out as much information as possible. This will help the SJI office in making an approximation as to the joist size you have submitted, when comparing it to our extensive archived material.

    When filling in the form regarding the joist chord and web member properties, it is recommended that the field measurements be taken with a micrometer rather than a tape measure, since thicknesses can vary by as little as 1/64 inch.

    Disclaimer Notice

    The information presented herein is designed to be used by licensed professional engineers and architects who are competent to make a professional assessment of its accuracy, suitability and applicability. The information presented herein has been developed by the Steel Joist Institute and is produced in accordance with recognized engineering principles. The SJI and its committees have made a concerted effort to present accurate, reliable, and useful information on the design of steel joists and Joist Girders. The presentation of the material contained herein is not intended as a representation or warranty on the part of the Steel Joist Institute. Any person making use of this information does so at one’s own risk and assumes all liability arising from such use.

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    Project Details

    Why are you requesting this information?

    Supplementary Information

    Note: Top chord and bottom chord are usually NOT the same size, so please make sure you measure both.

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    Sending pictures or sketches of the joist profiles is recommended.

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    Joist Investigation Form
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