The auTHORity in
    Dwelling Load Calculations

    Don't bid a job without the new THOR Dwelling Load Calculator. Beautiful print-outs and exceptional accuracy...Learn More

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    THOR's Extended Software
    Now Available Ala Carte!

    Don't need the entire THOR Software Suite? Now you can purchase THOR's extended programs separately!

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  • Support

    Forums, Videos, and Priority Help Available

    Get the answers you need from our forums, videos, or even talk to our developer to get NEC insight.

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The program pays for itself in one use.Herman G., CA

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