How to measure for a security door: a simple step-by-step guide

Before buying a security door for your home or workplace, it is vital you obtain accurate measurements. It isn’t enough to round the measurements up or down: you have to get precise measurements to ensure a perfect fit so that the door functions as it should—without gaps and without jamming.

So, how do you measure for a security door? In this blog, we will explore why measurements matter, the simple tools you will require to take the measurements and offer an easy guide on how to measure for a security door to make sure it fits and functions without any problems.

Why Accurate Measurements Matter for Security Doors

Accurate measurements are vital for both the appearance and functionality of your security door. A proper fit ensures you will have better security, performance and longevity from this vital security facet of your home.

Tools You’ll Need to Measure for a Security Door

Measuring for a security door is straightforward. You will need just a few simple tools: a measuring tape, spirit level, pencil or marker, and paper to write down the measurements.

The essential part is to be thorough and pay attention to detail. Here are the five quick steps to take:

Step 1: Measure the Door Width

Firstly, use the measuring tape to measure the width of the door frame and write down your findings to the nearest millimetre. Measure the inside of the frame at three separate points: the top, middle, and bottom. Pay special attention to the narrowest width to ensure the door will fit comfortably within the frame.

Step 2: Measure the Door Height

Secondly, you then measure the height of the door frame. Jot down the measurements from the top of the frame to the floor on both sides because the floor may not be perfectly even. Take special note of the shortest measurement to help prevent any jams when the security door is installed.

While measuring the width & height of the door, make sure to also measure the diagonal length of the door as well as this is an important element to know when measuring for your door fitting.

Step 3: Measure the Door Depth (Optional)

Thirdly, you may want to measure the door frame depth. This is only necessary when the security door must be fitted within your existing frame. It is another step to ensure your door is correctly fitted.

Step 4: Check for Level and Square

Next, use the spirit level to check if the door frame is level and square. A frame that is not square or crooked is likely to impact the functionality and longevity of the security door. This important step helps prevent the door from sticking or not closing properly.

Step 5: Double-Check Your Measurements

Finally, take a few moments to double-check all the measurements you have taken, ensuring everything is correctly written down. Considering that even minor measurement errors can cause delays during installation (needing adjustments to be made during fitting), it is a good use of your time to check again. Just in case!

Why Choose My Security Door for Your Installation?

As this blog shows, installing a security door is a more refined process than most people assume. That is why you may want to leave the entire professional installation process to the experts.

The professionals at My Security Door specialise in installing security doors—with all the necessary precision. Our specialised process involves using lasers to measure the door to ensure accuracy. You can leave the whole process to us—from taking measurements to completing the fitting—to ensure a flawless fit for your new security door.

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For expert advice on the right security door for your property, or for expert advice on installing security mesh on windows at your property please contact our experienced sales team on 1300 025 025.