Associated Locksmiths of America (ALOA) Practice Test 2026 – Your Comprehensive All-in-One Guide to Exam Excellence!

Question: 1 / 400

What is the standard height from the floor for installing a key in knob lock?

30 inches

36 inches

The standard height for installing a key-in-knob lock is typically 36 inches from the floor. This height has been widely accepted in the industry as it allows for convenient access for most individuals, making it easier to reach the lock while standing. It aligns with accessibility guidelines and building codes that promote uniformity and ease of use in public and residential settings.

The height "C" might seem like an appropriate choice if considering variations due to different interpretations, but it is not the established standard. A standard height of 36 inches ensures that the lock is accessible to a majority of users, including those who might be using mobility aids.

Overall, understanding the standard height for locks is crucial for ensuring compliance with building regulations and providing ease of access for all users.

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38 inches

42 inches

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