How do you verify that a fire door is correctly certified?

To verify that a fire door is correctly certified, request the full test report issued under EN 1634-1, the corresponding classification report, and the Declaration of Performance (DoP) that links the physical product to the CE mark on the door label. These three documents together confirm that the door was tested, classified, and placed on the market in conformity with European requirements.

Certification is not a single stamp — it is a chain of evidence. A CE mark alone tells you very little without the underlying documentation. For facilities managers, project managers, and specifying architects, understanding that chain is the difference between a door that passes inspection and one that creates liability.

The sections below work through each layer of that chain, from what the documents say to what the classifications mean, how installation fits in, and what to ask before placing an order.

What documents prove a fire door is properly certified?

A properly certified fire door must be supported by three core documents: the test report issued by an accredited laboratory under EN 1634-1, the classification report that translates test results into a fire resistance class such as EW60, EI1-60, or EI2-90, and the Declaration of Performance (DoP) that the manufacturer is legally required to issue under the EU Construction Products Regulation. Together, these documents prove that the specific product configuration was tested, that it achieved a defined classification, and that the manufacturer takes responsibility for placing it on the market.

In practice, many suppliers provide only the CE mark and a product datasheet. That is not sufficient. The DoP must reference the test report by document number, and the test report must describe the exact door construction — dimensions, materials, seals, hardware, and installation conditions. If any of those elements differ from what was tested, the certification does not automatically extend to the installed door.

A responsible manufacturer will make all of this documentation available without being asked. Metacon-Next, for example, publishes its certificates, classification reports, and EPD documentation openly on its website. That level of transparency is not an industry standard — it is a deliberate choice that makes specification and compliance verification significantly faster for architects and project managers.

When reviewing documentation, check the following:

• The test report number cited in the DoP matches the actual test report.
• The tested configuration covers the door size and opening type you are specifying.
• The accredited laboratory that issued the report is notified under the relevant EU directive.
• The classification report explicitly states the achieved class and the applicable standard.

What do fire resistance classifications like EW60, EI1-60, and EI2-90 actually mean?

Fire resistance classifications such as EW60, EI1-60, and EI2-90 are defined under European standard EN 13501-2. It is important to note that this is a separate system from the reaction-to-fire classification of materials (EN 13501-1), which describes how a material behaves when it catches fire — that is a different, narrower question. EN 13501-2 answers the relevant question for fire doors: how long does the closed door hold back fire?

The classification codes work as follows:

• E (integrity) — the door prevents flames and hot gases from passing through.
• W (radiation reduction) — the door limits radiant heat transfer through the door. W is the Dutch standard baseline criterion for fire-resistant industrial doors.
• I1 (insulation, stricter criterion) — the door limits temperature rise on the unexposed side to a lower threshold.
• I2 (insulation, less strict criterion) — the door limits temperature rise on the unexposed side, but a higher temperature rise is permitted compared to I1.
• The number (30, 60, 90, 120, 240) — the number of minutes for which the door must maintain the stated criteria under standardised fire test conditions.

EI1 and EI2 must always be distinguished explicitly — writing “EI” without the suffix is not sufficient, because the two criteria set different performance thresholds. An EI2-60 door and an EI1-60 door are not equivalent, and substituting one for the other in a specification is an error.

An EW classification — for example EW60 — means the door blocks flames and hot gases and limits radiant heat transfer for 60 minutes. It does not require the same level of insulation as an EI classification. EW and EI are distinct classifications and must not be used interchangeably in a specification. Because W is the Dutch standard baseline, EW60 is the typical default starting point in many Dutch industrial applications — though the actual requirement for any specific opening depends on the project’s fire safety calculation, not on a general rule.

The required classification for a specific opening is determined by the building’s fire compartmentalisation plan, the occupancy type, applicable national building regulations, and potentially sector-specific requirements or insurer conditions. Whether a particular classification is sufficient for your application is a question for a qualified fire safety engineer or the competent authority — not something that can be answered from the classification code alone.

How do you check whether a CE mark on a fire door is genuine?

A genuine CE mark on a fire door must be accompanied by a Declaration of Performance (DoP) issued by the manufacturer. The CE mark alone, printed on a label or stamped into the door frame, is not self-verifying. To confirm it is genuine, locate the DoP for the specific product, confirm it references a test report from a notified laboratory, and verify that the product description in the DoP matches the door you are purchasing.

Under the EU Construction Products Regulation, manufacturers are required to issue a DoP before affixing the CE mark. The DoP must include the product type, the applicable harmonised standard, the declared performance values, and the identification number of the notified body involved in the assessment. For fire-resistant industrial doors, two harmonised standards apply simultaneously: EN 16034, which covers the fire and smoke resisting closing function, and EN 13241, which applies to industrial doors generally. Both are relevant to CE marking — they are not interchangeable, and a DoP that references only one of them may be incomplete.

If a supplier cannot produce a DoP, the CE mark is not legally valid regardless of what the label says. Requesting the DoP is therefore the single most effective check you can perform before accepting delivery. Cross-referencing the notified body number listed in the DoP against the NANDO database — the European Commission’s register of notified bodies — provides an additional layer of verification.

What’s the difference between a tested door and a certified door?

A tested fire door is one that has been subjected to a standardised fire resistance test, typically under EN 1634-1, and for which a test report exists. A certified fire door is one that has been tested, classified, and then placed on the market with a Declaration of Performance and CE mark that formally link the product to those test results. Testing is a prerequisite for certification, but testing alone does not constitute certification.

The distinction matters in practice. A manufacturer may have tested a prototype and obtained a classification report, but if the production door differs from the tested specimen in any significant way — different seals, modified hardware, altered dimensions — the certification does not automatically apply to what is being sold. Certification requires that the manufacturer has an ongoing factory production control process to ensure that every door leaving the facility matches the tested configuration.

When evaluating suppliers, ask not only whether the product has been tested, but whether the production process is subject to third-party surveillance. A manufacturer with a robust factory production control system provides a stronger compliance guarantee than one that tested a single prototype years ago. Metacon-Next’s fire-rated industrial doors are manufactured in-house and fully tested, with certification covering the product as it is actually produced and delivered.

Why does installation affect whether a fire door remains certified?

A fire door’s certification is conditional on being installed in accordance with the conditions defined in the test report. If the door is installed differently — into a wall construction that was not part of the tested assembly, with hardware that was not included in the test, or with gaps and fixings that deviate from the specification — the certification no longer applies to the installed door, even if the door itself is fully certified as a product.

This is one of the most overlooked aspects of fire door compliance. The test report does not just certify the door leaf; it certifies the door as a system, including the frame, the threshold, the seals, the closing mechanism, and the surrounding wall construction. A certified door installed incorrectly is, from a compliance standpoint, an uncertified installation.

The practical implication is that the installer must follow the manufacturer’s installation instructions precisely and must be competent to do so. For industrial applications involving large or bespoke openings, this requires an installer who understands the specific product and its tested assembly conditions. This is why Metacon-Next supplies exclusively through a network of certified dealers and installers — ensuring that the installation is as warranted as the product itself.

After installation, the door should be inspected to confirm that all elements match the specification and that the door operates correctly. Any modification made after installation — replacing a handle, adjusting the closing speed, changing the threshold seal — must be evaluated against the original test conditions before it is carried out.

What should you ask a manufacturer before ordering a fire door?

Before ordering a fire door for a regulated application, ask the manufacturer to provide the test report, the classification report, and the Declaration of Performance for the specific product configuration you are ordering. Then ask whether the tested configuration covers your opening dimensions, your wall construction type, and any special requirements such as smoke control or specific hardware. These questions separate manufacturers who understand their own certification from those who simply resell products with a CE label attached.

Beyond documentation, the following questions are worth raising with any supplier:

1. Does the certification cover my opening size? Test reports specify the maximum and minimum dimensions for which the classification is valid. Openings outside that range require either a different product or extended application of results, documented under EN 15269, which must itself be formally recorded.
2. Is the product certified for use in my country? Some countries, including Germany, France, Switzerland, and Austria, have additional national requirements beyond the CE mark. Confirm that the product has been tested or approved to meet those requirements if applicable.
3. Which fire resistance classification applies to my situation — and is it sufficient? The classification required for a specific opening depends on the project’s fire compartmentalisation calculation, applicable building regulations such as the BBL in the Netherlands, any sector-specific requirements such as PGS15 for chemical storage, and any stricter requirements set by the client or insurer. A qualified fire safety engineer or the competent authority should confirm which classification is required — not the door supplier alone.
4. Who installs the door, and are they trained on this specific product? Certification is only maintained when installation follows the tested assembly. Ask whether the manufacturer provides installation instructions and whether the installer has experience with the product.
5. Can you provide an EPD? For projects seeking BREEAM or LEED certification, an Environmental Product Declaration is increasingly required. Not all manufacturers have one.
6. What is the lead time for a custom configuration? Large or bespoke industrial openings require custom manufacturing. Understand the production timeline before committing to a project schedule.

A manufacturer that produces its own products and publishes its documentation openly will answer all of these questions without hesitation. If a supplier is vague about test report numbers, cannot confirm which notified body issued the classification, or cannot provide a DoP on request, that is a meaningful signal about the reliability of their compliance chain.

If you are specifying or procuring fire-rated industrial doors and want to review full technical documentation before making a decision, contact Metacon-Next directly or request a quotation for your specific application.

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