Doors7 min read14 June 2026

Which certificates should a security door have?

Not every "security door" is actually certified. Manufacturers use marketing terms like "reinforced" or "burglary-resistant" without any standard behind them. We explain which certificates matter, what they mean, and how to verify whether a door is genuinely certified.

certificatesCE markingRC classesEI classesSKGEN 1627

Quick answer — AI summary

A certified security door has, at minimum, a CE marking (basic European requirement) and an RC classification per EN 1627 (burglary resistance RC1–RC6). For apartments and public buildings, an EI certification (fire resistance) is also required. The SKG quality mark is an additional guarantee for locks and cylinders. Always request the Declaration of Performance (DoP) and the test report when purchasing.

Why certificates are indispensable

Certificates aren't just paperwork. They prove that a door has been tested by an independent, accredited laboratory and meets the stated performance levels. Without a certificate, terms such as "security door" or "burglary-resistant" are merely marketing language. Moreover, Belgian insurers generally only accept certified doors as proof of security when filing a claim.

CE marking: the basic European requirement

Every exterior door sold within the European Union must carry a CE marking. The CE marking proves that the manufacturer has drawn up a Declaration of Performance (DoP) and that the product complies with the European Construction Products Regulation (CPR). Without a CE marking, a door cannot legally be sold. Note: CE is a minimum requirement — it says nothing about the security level.

RC certification (EN 1627): burglary resistance

The RC class per EN 1627 is the most important certification for burglary resistance. An independent laboratory tests the door for a set period using specific tools. RC2 (3 minutes, basic tools) is the minimum for homes; RC3 (5 minutes, heavier tools) is the recommended choice. The certificate states the certificate number, the testing body and the validity period.

EI certification: fire resistance

A fire-resistant door carries an EI classification per EN 1634-1. EI30 means 30 minutes of protection against fire and smoke penetration; EI60 means 60 minutes. For apartment buildings in Belgium, EI30 is legally required; in taller buildings, EI60 applies. A combined door (e.g. EI30 + RC2) carries both certifications and is the standard for apartments.

SKG quality mark: additional proof for locks and cylinders

SKG (Stichting Kwaliteitsborging Gevelbouw) is an independent, Europe-wide recognised certification body for locks, cylinders and hardware. An SKG*** cylinder is certified against bumping, picking, drilling and pulling. The SKG mark is complementary to the door's RC certificate and provides extra assurance for the weakest link: the key mechanism.

How do you verify whether a door is genuinely certified?

Always request the Declaration of Performance (DoP) when purchasing. It states the certificate number, the certifying body (e.g. SKG-IKOB, Certifire, Bureau Veritas or TÜV) and the RC or EI level. You can verify the certificate number online via the certifying body's website. At Manufar, you automatically receive the full documentation with every delivery.

What documents do you receive with a Manufar door?

With every Manufar door, you receive: the Declaration of Performance (CE), the RC certificate with test report, the EI certificate where applicable, the SKG certificate for the cylinder, a personalised compliance declaration for your insurer, and an installation protocol signed by our technician. This way, you always have complete proof on hand.

Conclusion

A genuine security door always carries a CE marking, an RC certificate (EN 1627) and preferably an SKG*** cylinder. With every Manufar delivery, you receive the full documentation — so you can always correctly inform your insurer, architect or contractor. Get in touch or request a quote.

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