What Size Gun Safe Do Police Expect in the UK?

Choosing the correct gun safe size is one of the most important decisions UK firearm certificate holders make. While legislation does not specify an exact dimension, firearms licensing officers assess whether your storage is suitable for the number and type of firearms declared.

This guide explains how police typically evaluate gun safe size in the UK and how to avoid under-specifying your storage. If you are comparing compliant options, explore suitable gun safes here before finalising your choice.

There Is No Single “Police Size”

UK legislation does not state a minimum cabinet height or width. Instead, officers assess suitability. That means your safe must comfortably and securely store the firearms on your certificate.

Overcrowding can raise concerns during inspection.

Capacity Should Match Your Certificate

When assessing size, consider:

• Number of firearms authorised
• Type (rifle vs shotgun)
• Optics or accessories fitted
• Future acquisition plans

A safe advertised as “5 gun capacity” may realistically hold fewer firearms if scopes are fitted.

Why Oversizing Is Often Recommended

Many experienced certificate holders choose a slightly larger cabinet than their current needs require.

• Prevents overcrowding
• Allows airflow between firearms
• Supports future additions
• Reduces need for replacement

Internal Compartments Matter

Some gun safes include internal lockable ammunition compartments. While ammunition storage rules differ depending on licence conditions, internal separation may be beneficial.

Height Considerations

Longer-barrelled firearms require sufficient internal height. Measure carefully before ordering.

Common Sizing Mistakes

• Buying exact capacity with no allowance
• Ignoring scope clearance
• Forgetting internal compartments reduce space
• Not measuring installation location

Installation Space vs Internal Capacity

Ensure the installation location allows:

• Door swing clearance
• Wall fixing access
• Safe loading and unloading

Insurance Perspective

Higher-value collections may attract insurer scrutiny. Adequate capacity and organised storage demonstrate reasonable precautions.

Future-Proofing Your Storage

If you anticipate expanding your collection, selecting a larger gun safe now can prevent additional installation costs later.

Final Thoughts

There is no fixed “police size” gun safe in the UK. Suitability is assessed based on declared firearms, installation quality and responsible ownership.

Choosing an appropriately sized gun safe supports compliance, insurance confidence and long-term practicality.