Double-Sided vs. Single-Sided Keys: What’s the Difference?

The difference comes down to where the cuts are on the key and how it fits into the lock.

Understanding this helps you choose the correct replacement key.

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🔑 What Is a Double-Sided Key?

• Cuts are located on both edges of the key
• The key works in the lock no matter which way it’s inserted

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🔓 What Is a Single-Sided Key?

A single-sided key has cuts on only one side of the blade.

• One side is flat and smooth
• The key must be inserted in the correct orientation

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🔍 Why Does This Matter?

• Helps you identify the correct replacement key
• Prevents ordering the wrong key type
• Ensures proper fit and function with your lock