
Standard Door Sizes: Guide to Measuring and Installing Interior Doors
In the DIY world, understanding standard door measurements and how to install them is key to any renovation project. As a Leroy Merlin Door Specialist, whether you're planning to replace an old door or install a new one, I can assure you this guide will take you step-by-step to achieve a professional result.
What are the measurements of standard interior doors?
Standard doors typically have dimensions that fit the most common needs. These measurements vary depending on the manufacturer, but generally range from:
- Standard height: 203 cm.
- Common widths: 62,5 cm, 72,5 cm, 82,5 cm, y 92,5 cm.
- Thickness of the partition: From 6 cm, 7 cm, 9 cm and 11 cm.

Use: In old farms (more than 40 years), doors may need to be custom made, as current standards may not match.
How to Measure Interior Doors
Follow these steps to take accurate measurements:
- Blade height: Measure from the bottom to the top of the door leaf.
- Broad: Take three measurements (top, middle, and bottom) to ensure there are no variations.
- Thickness of the partition: Measure the wall thickness to ensure the door block fits properly (excluding interior and exterior frames/trims).
Tools needed to measure and install
Flexometer 📏
Laser level 🔦
Electric drill and drill bits 🚀
Circular saw for precise adjustments
Step-by-step installation of a block door
- Prepare the hole: Remove any remnants of the old door and make sure the frame is level.
- Adjust or Place the Subframe: Adjust or position the wooden sub-frame according to the measurements of the gap provided in the PDF.
- Fix the door: Use anchor screws to secure the block to the wooden subframe. They are usually 3x40mm countersunk screws
- Check the level: Check with the laser level that the door opens and closes smoothly.
Advice: If you find unevenness in the wall, consider using repair mortar to level the area.
Advantages and Limitations: Standard vs. Custom Doors
Advantages | Limitations |
---|---|
✅ More Economical | ❌ Not adaptable to irregular spaces |
✅ Easily available (between 7 and 15 days) | ❌ Limited models |
Common problems and how to solve them
- Space smaller than the door: Use a circular saw to fit the wooden sub-frame.
- Thick wall: Install an additional frame or use expanding foam to adjust
FAQs – About Standard Door Sizes
Conclusion: Standard Door Measurements
Measuring and installing a standard door can seem like a challenge, but with the right tools, techniques, and equipment, it's a project you can complete successfully. Don't forget plan ahead to avoid surprises.
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