The Complete Guide to Commercial Security Doors: Choosing the Right Solution for Your Building

Introduction

When securing a commercial or industrial building, choosing the right door is critical. From fire protection to forced-entry resistance, today’s security door options offer far more than simple access control. Businesses increasingly rely on purpose-built doors—such as steel doors, metal fire doors, fire exit doors, external security doors, and metal fire exit doors—to ensure compliance, protect assets, and safeguard lives.
This guide explores each type of door, what it does best, and how to select the right one for your premises.
What Are Steel Doors and Why Are They Popular?

Steel Security Door

A steel door is a robust, multi-purpose option for commercial and industrial buildings where durability, strength, and insulation matter. These doors offer:

•    Excellent impact resistance
•    Enhanced security compared to timber or aluminium
•    Long-lasting, low-maintenance performance
•    Options for insulation and acoustic control

Steel doors are commonly used in warehouses, plant rooms, schools, retail units, and apartment blocks where general security and longevity are priorities.

Fire Protection: Metal Fire Doors & Metal Fire Exit Doors

Fire protection is a legal requirement for commercial buildings, making metal fire doors and metal fire exit doors essential.

Metal Fire Door

A metal fire door is designed to contain fire and smoke for a specified duration (usually 30, 60, 120 minutes). It ensures:

•    Fire compartmentation
•    Compliance with BS EN standards
•    Reduced spread of heat and smoke
•    Safety for occupants and emergency responders

These are often installed in corridors, stairwells, plant rooms, and between high-risk areas.

Metal Fire Exit Door

A metal fire exit door combines fire resistance with a secure emergency escape solution. Key features include:

•    Panic hardware for fast evacuation
•    Fire-rated construction
•    External weather resistance
•    Optional security enhancements to prevent misuse

They are ideal for buildings needing both fire protection and safe egress, such as factories, schools, offices, and public buildings.

Which door should you choose?

Why Door Compliance Matters?

Failing to install the correct door can result in:

•    Legal non-compliance
•    Insurance claim rejection
•    Increased fire risk
•    Higher security vulnerabilities

BS EN standards, CE markings, fire ratings, and PAS/LPS certifications help ensure you’re getting a compliant, tested product.

Benefits of Choosing Security Direct

Security Direct specialises in certified steel doors, fire doors, and high-security door systems, offering:

•    Custom sizes, colours, and hardware
•    Tested fire performance and security rating options
•    Fast delivery options
•    Nationwide installation
•    Expert technical guidance

You can also explore verified customer reviews on our Feefo Review Page and Trustpilot Page, demonstrating our commitment to quality and service.