FIRE DOOR
CLASSIFICATIONS
Understanding a fire door classification is crucial for specifying the door on construction projects and for existing buildings.
How to read Fire Door Classifications
The only way to specify and verify the performance of a fire door is to first understand a fire door classification. A classification can tell you the expected performance of a door at a glance and is crucial for all stakeholders involved.
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In the UK there are currently two routes to market for fire door manufacturers; the British (BS) or European (EN). The fire door classifications are different so it is crucial to understand both as a classification will allow you to identify both the performance and how the door was tested.
Reading a Reaction to Fire Classification
For example, a classification of "B-s1,d0" indicates that the material has very limited contribution to fire (B), minimal smoke production (s1), and no flaming droplets or particles (d0).
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Construction products should be clearly labelled to allow you to identify its reaction to fire. If you're ready to test your product, or test and existing product within your building, contact our team by clicking here.
British Standard Fire Door Classifications
Notation
Meaning
Smoke Tested?
FD30
30-minute fire integrity performance to BS 476-22
No
FD30S
30-minute fire integrity plus smoke leakage performance to BS 476-31.1
Yes - full perimeter including threshold
FD60S
60-minute fire integrity plus smoke leakage performance to BS 476-31.1
Yes - full perimeter including threshold
European Standard Fire Door Classifications
Notation
Meaning
Smoke Tested?
E30 Sa3
30-minute fire integrity, ambient smoke control on 3 sides (head and jambs).
3 sides - no threshold
E30 Sa4
30-minute fire integrity, ambient smoke control on all 4 sides.
4 sides - including threshold
EIâ‚‚30 Sa4
30-min integrity and insulation, ambient smoke control on all 4 sides.
4 sides - including threshold