Standard Locks vs. Restricted Locks: What’s the Difference?

You’ve likely heard the terms standard locks and restricted locks, but what do they actually mean — and which one is right for you?

Let’s break down the key differences so you can make an informed choice.

🔓 What Are Standard Locks?

Standard locks are the most common type of lock you’ll find in residential and light commercial settings. These include:

• Basic pin tumbler locks
• Common key-in-knob or deadbolt locks
• Readily available from hardware stores (like Bunnings)

✅ Pros of Standard Locks:

• Affordable and easy to replace
• Keys can be copied at most key-cutting shops
• Suitable for low- to moderate-security needs

❌ Cons of Standard Locks:

• Keys can be copied without permission
• Less control over who has access
• Vulnerable to basic lock picking and bumping (depending on quality)

🔐 What Are Restricted Locks?

Restricted locks are high-security locks that operate on a restricted key system. The key difference? The keys are legally protected and can’t be duplicated without proper authorisation.

The lock cylinder is designed to work only with specific, patented keyways. These are registered to a locksmith or company, and key duplication requires written permission from the authorised person or organisation.

✅ Pros of Restricted Locks:

• High key control – keys cannot be copied without your consent
• Legally protected key design – usually covered by patents
• Ideal for businesses, strata buildings, schools, and high-security homes
• Keys are tracked – locksmiths maintain key registration systems
• Customisable master key systems are available

❌ Cons of Restricted Locks:

• Higher upfront cost
• Only certain locksmiths can supply and cut restricted keys
• Requires paperwork and authorised signatures for key duplication

🔑 Key Control: The Biggest Difference

The main difference between standard and restricted locks is key control.

• With a standard lock, anyone with the key can make a copy — even without your knowledge.
• With a restricted lock, only authorised individuals can request copies, and the locksmith must verify this before issuing new keys.

This is particularly valuable in commercial or multi-tenant properties where access needs to be tightly controlled.