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For door hardware with a keyhole, the distance between the handle and the keyhole is the determining factor. In the Netherlands, 56 mm is the standard for interior doors, but always measure this before ordering. Do you have an older door? Then door hardware with a backplate is often the smartest choice. This neatly covers the lock hole recess. Tip: Use our free Measuring Guide to ensure you order the correct door hardware!
Frequently asked questions about Door fitting with keyhole
What is the standard distance for door hardware with a keyhole?
In most Dutch homes, the center-to-center distance for interior doors with a keyhole lock is 55 mm (SL55). In Germany, 72 mm is the standard. Always measure from the center of both holes and use our Measuring Guide!
How do I tell the difference between a keyhole and a cylinder hole?
A keyhole (SL) is narrow and shaped like a traditional bit key. A cylinder hole (PC) is wider and has a rounded top and a narrow bottom, specifically designed for profile cylinders.
Can I use rosette door hardware for a door with a keyhole?
Yes, you combine a rosette door handle with a separate escutcheon. The big advantage is that the distance between the handle and the keyhole is less critical during installation, because you install the two components separately.
Are door fittings with a keyhole supplied with a key?
No, the key comes with the mortise lock already installed in the door. We can, of course, supply the correct mortise lock directly. Simply order it via the related products on the product page!
Does every door fitting fit every door?
No, due to the varying bolt spacings, not every fitting fits every lock. Also, always check the door thickness carefully and measure it beforehand to avoid surprises!
