Last updated: November 2, 2026
EN 1634-1 Fire Door Test: Method, Classes & Reports
Quick answer: EN 1634-1 is the European furnace test method for fire-resisting and smoke-control doors, shutters and openable windows. The test itself produces evidence; the familiar EI30 or EI60 class is assigned through EN 13501-2 using that evidence and the applicable field-of-application rules. A buyer should therefore ask for more than a furnace report cover: classification, assessment/EXAP basis where sizes change, and the exact doorset configuration covered.
What happens in an EN 1634-1 test
A representative doorset is installed in a stated supporting construction and exposed to the standard heating and pressure regime. Integrity is monitored for flames, openings and cotton-pad ignition; insulation is monitored through temperature rise on the unexposed face; radiation may also be measured where an EW classification is sought. Duration is recorded to the relevant failure criteria. The report describes that tested specimen, including leaf construction, frame, seals, glazing, hardware and gaps—not every door the factory can make.
From test result to E, EW or EI class
EN 13501-2 converts evidence into classes. E denotes integrity, I adds thermal insulation (with variants in how it is assessed), and W controls radiation. Smoke leakage and self-closing durability are addressed through related classifications and test routes. A statement such as 'tested to EN 1634-1 for 47 minutes' is not the same product claim as a classified EI30 doorset with a defined scope. Procurement documents should name the required class and suffixes, not only the test method.
Direct and extended application: the size trap
Changing height, width, leaf arrangement, glazing size, frame material or wall type can move a product outside direct application. Extended application (EXAP) standards and expert assessments may allow defined variations, but they have rules and limits. Ask the supplier to map every scheduled size and configuration to the test, classification or EXAP document that covers it. This is especially important on hotel projects with oversized leaves and large vision panels.
Reading the evidence pack
- Classification report to EN 13501-2, not only the furnace test.
- Test report identifying the exact specimen and supporting construction.
- Field of application / EXAP documents for every size and variant ordered.
- Frame, wall, seal, glazing and hardware scope.
- Declaration/certification route required in the destination market.
- Installation instructions matching the classified configuration.
Common European procurement mistakes
The most costly errors are converting an EI class directly into a US minute rating, assuming CE language settles every national acceptance question, and ordering a bigger glazed leaf after seeing a favourable small test. Keep the destination's building-control route in the purchase specification and freeze the configuration before production. For class selection, use EI30 vs EI60 vs EI90.
Specification checklist: what to confirm before ordering
- Destination code edition, wall type and the opening’s required fire/smoke function.
- Complete doorset configuration: leaf, frame, seals, glazing and hardware—not a leaf-only claim.
- Every scheduled size and configuration mapped to test, classification, listing or assessment scope.
- Self-closing, latching, clearances and frame fixing checked at installation.
- Labels, installation instructions and inspection records included in the handover file.
Related guides
- UL 10B vs UL 10C: Neutral vs Positive Pressure Explained
- EI30 vs EI60 vs EI90 Fire Doors: Which Rating Do You Need?
- Can You Fireproof a Wooden Door? Ratings, Limits & Options
Send the destination market, wall/opening requirements, sizes and glazing/hardware functions. We will review the configuration against the target compliance route before quotation.
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FAQs
Does EN 1634-1 give the door an EI60 rating?
No. EN 1634-1 is the test method. The EI60 class is assigned under EN 13501-2 from acceptable evidence and scope rules.
Can a tested single door cover a larger double door?
Only if the direct or extended field of application covers that configuration and size. Ask for the mapping document rather than relying on a sales assurance.
What is the supporting construction?
The wall or partition in which the doorset was tested or is approved to be installed. Changing from masonry to a lightweight partition can change the approval scope.
