Certification & Compliance: What You Need to Know About the MK2 Door Selector
When it comes to fire safety and door control in commercial and public buildings, compliance isn’t just a box to tick, it’s a legal and moral imperative. One crucial yet often overlooked component in double door sets is the door selector, and the Selectrite Hardware MK2 Door Selector stands out for its robust performance and fully certified compliance.
In this blog, we explore the certification and compliance standards that make the Selectrite Hardware MK2 not only reliable but also regulation ready, and why this matters more than ever.
What Is a Door Selector and Why Does It Matter?
A door selector ensures that in a pair of rebated doors or metal doors with astragals, the correct closing sequence is maintained, allowing the inactive leaf to close after the active one. This is critical for:
• Maintaining the integrity of fire doors
• Ensuring full latching and security
• Preventing door damage and hardware misalignment
Without a properly functioning door selector, fire-rated doors can fail to perform in an emergency. That’s why certification isn’t optional, it’s essential.
Lessons from Grenfell: The Tragic Cost of Fire Safety Failures
The Grenfell Tower fire in 2017 was a stark reminder of what’s at stake when fire safety systems fail. Among many failings identified by the public inquiry, compromised fire doors played a key role in allowing smoke and fire to spread. Many doors either didn’t self-close properly or lacked the appropriate hardware to function as intended.
Fire doors are not just passive barriers, they are active components in a building’s fire strategy. If a door in a double-leaf set closes in the wrong order or fails to latch fully due to poor coordination, it can leave dangerous gaps for smoke and flames to pass through.
While door selectors themselves were not specifically called out in the Grenfell reports, their role in double fire doors is essential. If a double door closes out of sequence:
• The passive leaf may not latch correctly.
• The doors may not fully seal, compromising fire and smoke resistance.
• The fire door certification can be invalidated.
So, compliant, tested, and correctly installed door selectors like the MK2 are a critical part of ensuring fire doors work as intended.
In this context, door selectors like the MK2 are not an optional extra, they are life saving components that support the integrity of fire doors under extreme conditions.
MK2 Door Selector: Built to Meet the Highest Standards
The Selectrite MK2 isn’t just engineered for precision, it’s tested and certified to ensure ongoing compliance with UK and international safety regulations.
Tested to BS EN 1158
The MK2 is independently tested and certified to BS EN 1158 1997, the European standard for door coordinators. This ensures:
• Durability and mechanical strength
• Reliable closing sequence control
• Suitability for use on fire and smoke doors
EN 1158 testing includes thousands of cycles under pressure, mechanical stress, and fire simulation. MK2 passes with full compliance.
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The MK2 Fire Door Selector delivers peace of mind and mechanical performance.
Fire Door Compatibility
The MK2 is suitable for use on FD30 and FD60 timber fire doors. When installed correctly, it maintains the fire performance of the door assembly in accordance with BS EN 1634-1.
Third-party accreditation, such as CERTIFIRE or IFC certification (check with supplier), is often available to prove this suitability when used as part of a certified door set.
CE, UKCA and UL Marked
The MK2 carries CE and UKCA markings, confirming its compliance with:
• The Construction Products Regulation (CPR)
• UK legislation post-Brexit
This means it can legally be installed in projects across both the UK and EU.
Compliance Checklist: What to Look For
| Compliance Factor | MK2 Status |
|---|---|
| EN 1158 Tested | ✅Yes |
| CE Marked | ✅Yes |
| UKCA Marked | ✅Yes |
| Fire Tested (FD30/FD60) | ✅Yes (as part of tested door set) |
| UL Certified | ✅Yes |
| Corrosion Resistant (for external doors) | ✅Optional finishes available |
Correct Installation Is Crucial
Certification alone isn’t enough, installation must follow best practice. The MK2 should always be:
• Fitted at the head of the door pair
• Used with compatible hardware (door closers, hinges, intumescent strips)
• Installed as per manufacturer guidance with all component parts supplied fitted to the door
Poor or rushed installation can invalidate fire certification and lead to system failure in the event of a fire.
Correct installation for fire door selectors is vital: Read more about correct installation in this blog post.
Compliance Isn’t Just About Standards. It’s About Safety
We are extremely proud that our MK2 Door Selector delivers peace of mind alongside mechanical performance. With full certification to EN 1158, fire door compatibility, and CE/UKCA/UL marking, it ensures that your door system meets both legal and practical standards.
The Grenfell tragedy showed that the smallest components can have the biggest consequences when it comes to fire safety. Every detail matters and the MK2 ensures that your double doors close safely, securely, and in sequence.
Need technical support or certification documents?
Get in touch with our team to request test reports, installation guides, or compliance certificates for your next project.