Description
Types of Steel Security Doors
We understand that every building and business has unique requirements, and we know that different environments demand specific door solutions. That is why our team of dedicated specialists are ready to provide you with the ideal, bespoke solution for your premises.

Your Steel Security Door Options
SR4 ExcluDoor® 4 Mk2 – Available in single, leaf-and-a-half and double-leaf formats. Includes a range of various locking mechanisms that you can pick from for your own peace of mind. We also offer the option to include a vision panel in your stainless steel security door.
SR4 ExcluDoor® 4 Mk2FR – This option includes single, leaf-and-a-half, and double-leaf high-security fire-rated steel door sets, ensuring maximum protection for your premises and occupants.
SR4 ExcluDoor® 4 Mk3 – Offers single-point locking on both single, leaf-and-a-half and double-leaf doors, carefully designed to offer optimum protection against intrusions. If you choose to, a vision panel can also be seamlessly fitted.
The Benefits of Level 4 Steel Security Door Installation
Be confident in your safety and security. These sturdy, reliable steel security doors can withstand attempts at forced entry, even when power tools are used. This gives you the time to act and prevent opportunists from entering your building. Thanks to these benefits, commercial level 4 steel security doors are typically used in government buildings, banks, embassies, and utility buildings. Our doors also incorporate a sleek design, meaning you can gain top-level security without compromising the appearance and professionalism of your workplace.
Why Choose Rite Doors?
When you choose Rite Doors, you can rest assured that you will receive the highest possible quality doors and service. As one of the leading industrial steel security door manufacturers, you can enjoy the peace of mind that comes with knowing you are in trusted, safe, and capable hands.
Our reliable team is ready to advise on the best doors for your particular requirements. We also offer a thorough installation service and the option for ongoing maintenance.
Contact the Experts
Thinking about enhancing your security? Call us on 01892725100 today, or visit our contact page. As experts in stainless steel security doors, we are on hand to provide you with in-depth advice and guidance. We look forward to hearing from you soon.
What makes us Rite?
Our phones are answered 24 hours a day, 365 days a year, so we can respond quickly and efficiently to any emergency repair enquiry. Our experienced engineers are always reachable and carry a comprehensive range of spare parts, allowing us to complete most repairs on the first visit.
If you’re aware of the exact requirements regarding your choice of level 4 steel security doors and can supply us with the relevant measurements, we’ll happily provide a competitive quotation over the telephone. This applies to both supply-only and supply-and-fit. Call us on 01892 725100 today.
Amongst our vast selection of steel security doors, we are bound to find the one which best suits you. As specialists in warehouse door manufacture, our expert team is on hand to help; give us a call on 01892 725100. View our wide range of Stainless Steel Doors, Sliding Gates, High-Speed Doors, Folding Doors, Sectional Overhead Doors, and PVC Insulation Screens. Open the right door with Rite Doors.
FAQs
What is LPS 1175 SR4?
An SR4-rated steel security door is tested to withstand deliberate attempts at intrusion, including the use of power tools, providing high-level protection for buildings where security is critical.
What protection does SR4 provide?
It is specifically designed to delay determined intruders, giving you valuable time to respond while protecting high-risk premises such as banks, government buildings, and commercial properties.
Where are SR4 doors typically used?
They are commonly installed in:
- Government buildings
Banks - Embassies
- Utility facilities
- High-risk commercial premises
Their robust construction makes them ideal for locations where safety and security are a priority.
Are SR4 doors fire-rated?
For example, the SR4 ExcluDoor® 4 Mk2FR offers high-security performance alongside fire-rated protection, helping to safeguard both against forced entry and the spread of fire within your premises.
What tools do SR4 doors resist?
They are tested to withstand forced-entry attempts involving equipment such as drills and cutting tools, helping to delay determined intruders and provide valuable time to respond and protect your premises.
How to choose SR4 security doors?
- Consider environment (e.g., commercial, government, high-risk)
- Decide if fire-rating is needed
- Choose appropriate locking mechanisms and configurations
- Ask experts for tailored advice to suit your specific security needs.





