Measure Up! How to Measure for your PAS 24 Security Fire Door Set

Measure Up! How to Measure for your PAS 24 Security Fire Door Set

Security and safety are two of the most important things that we should keep in mind as homeowners. Thus, it is essential to equip our homes with the necessary measures to keep us safe from threats such as theft, violence, and even fires. One effective way to do this is by installing a PAS 24 security fire door set. These door sets meet the British standards for home security and fire safety, making them an excellent investment for any homeowner. In this blog post, we will guide you on how to measure for your PAS 24 security fire door set, to ensure perfect fit and maximum protection.

First things first, grab your measuring tape and follow these steps for accurate measurements:

1. Measure the Height – Place the measuring tape at the bottom edge of the doorway and pull it up to the top edge. Round off the measurement to the nearest millimetre. Repeat this process on the opposite side of the door to ensure that your doorway is levelled.

2. Measure the Width – Take the measurement at different spots, such as the top, middle, and bottom of the doorway. Use the shortest measurement you have, then deduct 10mm from it to ensure that the door set will have enough clearance to swing.

3. Measure the Depth – This measurement is critical to ensure that the door set will fit into the doorway. Measure from the front edge of the door facing the outside of the room all the way to the back of the inner edge facing the inside. Again, repeat the process on the opposite side of the doorway for accuracy.

4. Measure the Thickness – The door set's thickness range from 44 to 54 millimetres, and it is vital to know your doorway’s thickness. Measure the thickness of your existing door, including the door frame from the outside to the inside of the room. Ensure that you get the measurement of both the door and the frame.

5. Check for Obstructions – Look for any obstructions such as door frames, skirting boards, or architraves that may interfere with the door's fitting. Be sure to measure the width and depth of these obstructions, so you know how much space they'll take up, and you can adjust the door set accordingly.


Investing in a PAS 24 security fire door set for your home can give you peace of mind knowing that you and your family are safe from harm. However, ensure that you get the right measurement for your door set. By following these simple steps, you can measure your doorway accurately and get the right PAS 24 security fire door set for your home's needs. Remember to double-check your measurements, and if you're unsure of anything, don't hesitate to contact a professional installer for assistance. Stay safe and secure!