At Doorphoria, our how to measure for an internal door guide ensures you get a precise fit every time. Measuring the door opening (not your old door) is key to avoiding costly mistakes and ensuring your new door looks and functions perfectly.
01 – Measure the Height of the Opening
Use a tape measure to record the door height measurement in three locations:
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Left side
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Centre
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Right side
Write down each number, then calculate the average. This accurate door sizing method helps you order the correct height.
02 – Measure the Width of the Opening
Next, record the door width measurement in three spots:
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Top
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Middle
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Bottom
Average these to determine your precise door width. Proper door frame measurement prevents mis‑sized orders.
03 – Account for Flooring
Installing new carpet, tile, or hardwood? Subtract the floor thickness from your height measurement. This flooring adjustment door measurement step guarantees your door swings freely after installation.
04 – Check the Thickness
If you have an existing door, measure its door thickness measurement at handle height. No door to measure? Standard internal doors are typically 35 mm thick. This standard door sizing helps you choose the right slab.
05 – Match Your Measurements
With your height, width, and thickness in hand, browse our range and select the closest standard door sizes.
💡 Tip: Most of our doors can be trimmed by up to 32 mm on both height and width for a custom fit—perfect for DIY door fitting.
Not a Standard Size? Bespoke Options Available
Some openings require a made-to-measure doors solution. At Doorphoria, we celebrate individuality—no two homes are the same. If your opening is unique, explore our bespoke door measurement service:
🔨 Made‑to‑Measure Bespoke Doors
Need Installation or Care Advice?
For detailed tips on frequently asked questions and maintenance, visit our FAQ’s and How To Guides page :
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