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Adding a storm door to the front of your house not only increases security, but can also look good and allow a lot of light into a typically dark area of the home. However, before you run out and buy a door, it's important to make sure the one you want will actually fit. This article will walk you through the proper way of measuring for a storm door -- just see Step 1 below to get started.
Things You Should Know
- Measure the height of the door, from the top of the bottom threshold to underneath the top piece of trim.
- Measure the width of the door, from inside the trim on the left to inside the trim on the right.
- Use these measurements when purchasing a storm door.
Steps
Check for any obstructions.[1] Before you take any measurements, you should first have a quick glance around the doorway to check for any potential obstructions that would affect the installation of your storm door.- Look for the placement of door handles, exterior lights, the mailbox and even the doorbell. In some cases these items may interfere with the installation of the storm door or prevent it from closing properly. If this is the case, you may need to relocate them or switch to smaller door handles.
- Look at the placement of pillars on the front porch to see if the storm door will have enough room to swing outwards once installed. At this point you may also want to decide which way you want your storm door to open. Do you want the handle on the right and the hinges on the left (left-hinged outswing) or the handle on the left and the hinges on the right (right-hinged outswing)?
Measure the height of the door. Measure the height of the door in 3 places from the top of the bottom threshold to the underside of the top piece of trim (also known as the header).- Place the tape measure on top of the threshold (which is usually made of concrete or silver/brass metal) and stretch it to the bottom side of the top piece of exterior trim.
- Do this on the left side of the door opening, the center of the opening and on the right side of the opening and make a note of each measurement.
- Normally, you will get measurements somewhere between 80" to 81" on newer homes and 96" to 97" on openings with older, larger doors.
- Highlight the smallest of the three measurements, as this is the one you will be working with.
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Measure the width of the door.[2] Measure the width of the door from left to right, from inside of trim to inside of trim (or the inside face of the brick mold).- Do this in three places: at the top of the door opening, in the middle of the door opening (around the handle) and at the bottom of the door opening. Make a note of all three measurements.[3]
- Highlight the smallest measurement, as this is the one you'll be using.
Estimate the door measurements. Take the smallest measurements from the door width and door height and write them in "width x height" format.- For example, if your smallest width measurement was 36 inches (91.4 cm) and your smallest height measurement was 80 inches (203.2 cm), then you would write 36" x 80".
- This is the measurement you will use when purchasing a storm door. If you want to be completely sure that your measurements are accurate, repeat the process a second time.
Buy a standard-sized storm door. All pre-hung storm doors come in a range of standard sizes, which vary slightly from manufacturer to manufacturer. Therefore, all you need to do is match your personal door measurements to the closest standard size.
Use a z-bar. Sometimes the width of your door measures more than the standard sized storm doors.[7]- In this situation, it is possible to purchase a z-bar extender kit to fill in the excess space between the door trim and the storm door.
- This is a convenient option that saves you the trouble of ordering a custom-sized door. However, it is only possible if the door opening is less than an inch wider than the largest standard door size.
Order a custom storm door. If your door has unusual measurements that don't fit within the standard sizes, you may need to order a custom-sized storm door. Once you do this, you're ready to install the storm door yourself.[8] Happy installation!- This may be more expensive than the cost of standard sized doors, but it will be worth it for a properly fitting storm door.
- Most of the main storm door manufacturers off a service for ordering custom sized door.
Video
Community Q&A
- QuestionI have an opening 80" x 35". Do I need a custom order to install a storm door (Anderson Series 4000)?
Community AnswerA standard 36x80 door will fit. Just make sure if you need it hinged left or right. - QuestionHow do I measure for a new storm door?Community AnswerFollow the instructions listed in the article above.
- QuestionWhat size door do I need if the doorway is 73 inches by 36 inches?
DonaganTop AnswererLeave about a ¼" (or less) space around all four edges of the door, which means the door should measure about 72½" x 35½".
Tips
- Don't use a level or square. You already know it's not level or square because no house is. Remember, storm door installation is more ART than SCIENCE.Thanks
Warnings
- If your entry door jamb is less than 4 1/2" thick, you may run into the problem of the storm door handles hitting the front door handles when the door closes, which means the storm door will not close and latch.Thanks
References
- ↑ https://www.pellaatlowes.com/window-door-inspiration/how-to-measure-for-storm-door
- ↑ https://images.homedepot-static.com/catalog/pdfImages/01/01c6c5f9-d9ea-4c6e-8955-3126ec8ee29c.pdf
- ↑ https://www.larsondoors.com/storm_doors/how_to_buy_measuring/
- ↑ https://www.larsondoors.com/
- ↑ https://www.andersenwindows.com/windows-and-doors/doors/storm-doors-screen-doors/
- ↑ https://www.homedepot.com/catalog/pdfImages/01/01c6c5f9-d9ea-4c6e-8955-3126ec8ee29c.pdf
- ↑ https://www.lowes.com/n/how-to/install-storm-door
- ↑ https://www.todayshomeowner.com/video/how-to-add-a-storm-door-to-your-home/
- https://www.familyhandyman.com/doors/storm-door-replacement/
About This Article
To accurately measure for a storm door, measure the height of the doorway on the sides and in the center from the top of the bottom threshold to the underside of the header. Then, measure the width of the door inside of the trim at the top, middle, and bottom of the door. Use the smallest measurements from the width and height to estimate the appropriate size for the door. Scroll down for advice on choosing the best storm door for your needs!
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