While replacing an exterior door may seem like a straightforward process, there are subtle yet crucial details that determine whether your new door installation will be a success or failure. Measuring accurately is key, as an improperly sized door will not function properly and could jeopardize security.
In this blog post on how to measure exterior door for replacement, I’ll share the precise techniques for taking all the necessary measurements to ensure you order and install the perfect replacement door for your entryway.
From measuring the opening width and height to accounting for clearances, we’ll cover everything you need to know to stride confidently into the hardware store with tape in hand, ready to find a door that fits like a glove. Let’s get started!
11 Step-by-step Guidelines on How to Measure Exterior Door for Replacement
Step 1: Remove the Existing Door
Before you can take any measurements, you’ll need to remove the existing door from its hinges. Don’t worry about damaging it; just set it aside and turn your focus to the door frame. But before you do that, take a moment to inspect the frame for any signs of damage or rot. If the frame is damaged, it may be necessary to repair or replace it before installing your new door.
Step 2: Measure the Width
Using a tape measure, determine the width of the door opening by measuring from the inside edge of one side of the door frame to the inside edge of the opposite side. Make sure you measure in three places: the top, middle, and bottom of the door frame. Record the largest measurement. It’s important to measure the width at several points, as not all door frames are perfectly square.
Step 3: Determine the Rough Opening Width
The rough opening is the measurement of the space in which the door will be installed. To determine this measurement, add 2 inches to your recorded width measurement from step two.
This extra inch on each side accounts for clearance and ensures the door will fit properly without rubbing against the frame. It’s always better to have a slightly larger rough opening than one that is too small, as you can always add shims or trim to fill in any gaps.
Step 4: Measure the Height
Similar to step two, measure the height of your door opening in three places: left, right, and middle. Record the largest measurement. It’s essential to measure the height accurately as the door must fit snugly inside the frame without scraping against it.
You also want to ensure the door height is not too high, as it will be challenging to install. The general rule is to leave a 1/4 inch gap between the top of the door and the frame.
Step 5: Determine the Rough Opening Height
Again, add 2 inches to your recorded height measurement from step four to determine the rough opening height. This additional clearance accounts for flooring and any adjustments that may need to be made during installation. It’s crucial to have the right rough opening height for your door. You don’t want the door sitting too low, as this could result in difficulty opening and closing it.
Step 6: Measure the Depth of the Door Frame
For the door to fit and function correctly, you’ll need to measure the depth of your door frame. This measurement includes the thickness of any trim or casing installed around the frame. The standard depth for most exterior doors is between 4 9/16 inches and 6 9/16 inches. This depth is necessary to accommodate the door jamb, which holds the door in place.
Step 7: Record Other Key Measurements
Additional measurements that are vital for ensuring your door replacement project is a success include the jamb width and jamb depth. Jamb width refers to the thickness of the vertical sides of the frame, while jamb depth measures from the outer edge of one side to the opposite. Make sure you record these measurements accurately as they will determine if your new door will fit within your existing frame.
Step 8: Check for Squareness
A key aspect of measuring for an exterior door replacement is checking for squareness. This step ensures your new door will fit properly and open smoothly once installed. Using a level, check to see if the sides of the frame are plumb (perfectly vertical) and if the header (top part of the frame) is level.
If any of these measurements are off, it’s essential to make adjustments before proceeding with your door replacement.
Step 9: Consider the Threshold
When measuring for an exterior door replacement, you’ll also need to consider the threshold – the bottom strip that bridges the gap between the inside and outside of your home. The threshold height should be no more than half an inch higher than the flooring inside your home to prevent tripping hazards. If your threshold is too high, you can remove it and install a new one at the appropriate height.
Step 10: Determine the Door Swing
Before purchasing your new door, it’s essential to know which direction the door will swing open. Stand outside and look at your current door – if it swings towards you while opening, it’s a right-hand inswing. If it opens away from you, it’s a left-hand inswing. It’s essential to determine this as it will affect the type of door you choose and how it is installed.
Step 11: Choose Your Door
Now that you have all of the necessary measurements, it’s time to choose your new door! Head to the hardware store armed with your accurate measurements and look for a door that fits your needs and style preferences. Don’t be afraid to ask a sales associate for assistance in finding the perfect fit. If you’re ordering a custom door, make sure to provide all of your measurements accurately to ensure the best fit possible.
Following these step-by-step guidelines on how to measure exterior door for replacement will ensure a smooth and successful installation process. Remember, accuracy is key, so take your time and double-check all measurements before making your final purchase.
With the right measurements in hand, you’ll be well on your way to selecting and installing the perfect replacement door for your home’s entryway. So, follow these steps and say hello to a beautiful, functional new door for your home! Happy measuring!
Frequently Asked Questions
Q: Can I Measure for a New Exterior Door While the Old One is Still in Place?
A: No, it’s best to remove the old door before taking measurements to ensure accuracy. It also allows you to inspect the frame for any damage or rot that may need to be addressed before installing a new door.
Q: How Do I Measure for an Exterior Door with Sidelites or a Transom Window?
A: When measuring for a door with sidelights (windows on either side) or a transom (window above the door), it’s crucial to measure the entire width and height of the opening, including all windows. This measurement will determine the rough opening size needed for your new door.
Q: What if My Measurements Don’t Match Standard Door Sizes?
A: If your measurements don’t match standard door sizes, you can opt for a custom-made door to fit your specific needs. Most hardware stores offer this service, but it may come at an additional cost. It’s best to confirm with the store before ordering a custom-sized door.
Q: Do I Need to Measure for a New Door Handle and Lockset?
A: Yes, it’s essential to measure the distance between the center of the doorknob and the center of the lockset (the cylinder that holds the key). This measurement will determine if your existing handle and lockset will fit on your new door or if you’ll need to purchase new ones.
Conclusion
In conclusion on how to measure exterior door for replacement, measuring your exterior door for replacement may seem like a daunting task, but with the right tools and knowledge, it is a simple process. First, determine the type of door you have and gather all necessary materials.
Then, follow the step-by-step instructions provided in this post to accurately measure your door. Remember to double-check your measurements to ensure a perfect fit. Replacing your old exterior door not only enhances the aesthetic appeal of your home but also improves its energy efficiency and security.
So don’t put off this important home improvement project any longer! With these tips and tricks, you can confidently take on the task and transform the look and functionality of your entryway.
So what are you waiting for? Grab your measuring tape and start measuring for that new exterior door today. Your home will thank you for it! Don’t forget to share this post with others who might find it useful too. Happy renovating!
