doors 101

Our blog all about door installation! Sign up for our newsletter to get automatic updates on new posts.


Installing a door properly is one of the more challenging home improvement jobs and can be complicated even for professional contractors. Without the right tools, the job can take up to half an hour and the assistance of other people. While mistakes in other areas can often be easily addressed, mistakes in hanging a door can have long-lasting consequences. The door may not hang flush, it may be drafty and it may not even close. Whether you are learning how to install a door, how to fix a door or how to install a pre hung door, we can help you learn what to do and what not to do.


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CHEATAH door level

CHEATAH door level

The CHEATAH™ door level kit makes installing a door simple and quick. Attach the CHEATAH directly to the top and sides of the door. The four precise levels work together to allow easy, accurate positioning of the door. Once level, the built-in shim guides let you correctly shim the jamb. The CHEATAH works on all types of doors with perfect results each time. Our door level kit is extremely durable and carries our 100 Guarantee™. Save time and money installing doors right the first time, every time.

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100 Guarantee

Our 100 Guarantee™

Your Satisfaction is Important to Us.

Make your purchase with the comfort of knowing that your order is backed by our 100/100/100 guarantee: 100% replacement if you are not 100% satisfied in your first 100 days. Guaranteed. This gives you plenty of time to check your items for accuracy, high-quality, and to try for yourself, family and friends. If for any reason you need to exchange an item, just contact our Customer Service department and you're done! * JenTra exchanges are subject to proof-of-purchase.
Made in the USA

Made in the U.S.A.

Growing American Production, one tool at a time.

Every tool is 100% guaranteed to be produced and manufactured right here in the good ol' USA! Quality, Innovative, and Made in the USA -- You have our promise. No compromise. When you make your purchase from JENTRA door levels, you are helping more than just yourself! For example: our tools are made and assembled in the USA, the box it shipped in was made in the USA, our website is hosted by a US company, the shipping providers are all from the USA, the people who built our building are US citizens, etc...As you can see, buying one tool or maybe even two that are Made in USA affects many jobs in many different industries. We each can make a difference -- keep it Made in USA!

don't take our word for it

Some of the top media outlets in the country are talking about us.


  • ProSales

    ProSales Magazine

    One of the largest publications available to the pro construction trade.

    “…reduces installation-related callbacks and warranty claims.“

    Read more

  • Builder Magazine

    Builder Magazine

    A top magazine produced by Hanley Wood, targeted directly to builders.

    “An ingenious door-installation tool that will speed and ease the way things are done.“

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  • DIY's

    The DIY Network

    Featured on the popular show – “I Want That”.

    “…never, ever hang a crooked door again. Not with this!“

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  • LBM Journal

    LBM Journal

    The Mid-West’s trusted source for the most up-to-date construction news.

    “…helps to reduce the burdens that can come with door installation.“

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    meet our team

    It starts with the people.


    • Travis Kelley - CEO/Co-Founder

      Travis Kelley - CEO/Co-Founder

      Accomplishments in retail sales management with Scherer Brothers Lumber, J.B. O’ Meara and Marvin Windows.
    • Jennifer Kelley - Product Steward/Co-Founder

      Jennifer Kelley - Product Steward/Co-Founder

      Background in office-management, customer service and the “Jen” in the JenTra.