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How to Measure a Door for Replacement: A Step-by-Step

How to measure a door for replacement starts with precise measurements to ensure you find the perfect fit for your entryway. Whether it’s a standard single door, a double door, or one with sidelights, these simple steps will help you choose the ideal new door that boosts both your home’s curb appeal and functionality.

Measuring a Front Door with Sidelights

For a front door with sidelights, the measurement process is a bit more involved. 

  • Measure the full width: Measure the entire width of the door and sidelights, from one end of the door to the other.
  • Measure each sidelight width: Measure the width of each sidelight (the windows next to the door) by checking the space between the inside edges of the frames.
  • Measure the height: For the door, measure from the top to the bottom. Do the same for each sidelight.
  • Measure thickness and depth: Measure how thick the door is and the depth of the door frame (jamb).
  • Measure the entire frame: Measure the overall width and height of the door frame to make sure the new one fits perfectly.

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Measuring Double Doors

Measuring double doors follows a similar approach to single doors, with a few key differences. 

  • Measure the total width: Stand outside and measure across both doors, from one outer edge to the other.
  • Measure the height: Measure from the top of one door to the bottom.
  • Measure the thickness: Check the thickness of one door panel by measuring its edge.
  • Measure the frame (jamb) width: Measure the wooden frame holding both doors in place.
  • Measure the full frame: From inside your home, measure the overall width and height of the door frame.

    These steps will help you get the right size for your double doors!

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    How to Measure a Door for Replacement: Tips for Double Doors with Sidelights

    When learning how to measure a door for replacement, double doors accompanied by sidelights require a more comprehensive approach.

    • Measure the total width: Measure the full width of the doors and sidelights, including both door panels.
    • Measure each sidelight: Measure the width of each sidelight separately.
    • Measure the height: Record the height of the door panels and each sidelight.
    • Measure thickness and jamb depth: Check the thickness of the doors and the depth of the frame (jamb).
    • Measure the overall frame: Measure the total width and height of the door frame.

      These steps will help you get accurate measurements for double doors with sidelights!

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      Checking for Square and Level

      Regardless of your door configuration, it’s essential to verify that your entryway is square and level when figuring out how to measure a door for replacement. To check for squareness, measure diagonally from one corner to the opposite corner in an X pattern. If the measurements match, your door is square.

      Use a level to ensure the top and sides of the frame are plumb. If you notice any warping or unevenness, take additional measurements at the top, middle, and bottom (or left, center, and right) of the door to pinpoint the issue.

      Preparing for Replacement

      With all your precise measurements in hand, you’re ready to take the next step in the door replacement process. If you’re a do-it-yourselfer, you can use these details to purchase a new fiberglass or wood entry door online and have it delivered directly to your home.

      Alternatively, schedule an in-home consultation with a professional door replacement expert. They can help you find the perfect solution for your entryway and handle the entire installation process, ensuring a seamless and worry-free experience.

      How to Measure a Door for Replacement: Trust The Window Factory for a Perfect Fit

      Accurately measuring your front door is the crucial first step in learning how to measure a door for replacement. While our step-by-step guide will help you gather the necessary details, for the best results, it’s always a good idea to contact an expert like The Window Factory, in California. Whether you’re upgrading to a modern single door, converting to double doors, or adding stylish sidelights, professional guidance ensures precise measurements and a seamless installation, enhancing your home’s curb appeal and functionality.

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