Fire compartmentation in a large warehouse is achieved by dividing the building into enclosed zones using fire-resistant walls, floors, and doors that together prevent fire and smoke from spreading beyond a defined area for a specified period. The compartment boundaries must meet a continuous fire resistance classification, meaning every element \u2014 including the openings \u2014 must perform to the same standard. The sections below address the specific questions architects and specifiers face when designing compartmentation for warehouse and logistics environments.<\/p>\n
The maximum size of a fire compartment in a warehouse is set by the BBL (Besluit Bouwwerken Leefomgeving, formerly Bouwbesluit) as an absolute minimum baseline, but the actual permitted compartment area in a specific project is almost always determined by a combination of project-specific fire safety calculations, sector regulations such as PGS15 for hazardous substances, insurer requirements, and client specifications. The BBL defines a regulatory floor, not a design target.<\/p>\n
Under the BBL, the baseline maximum compartment area for industrial and storage functions is set in relation to building use and occupancy. However, a heavier classification than the baseline may be required for a number of reasons: the project deviates from standard building regulations, a sector-specific regulation such as PGS15 mandates a stricter requirement, the client or principal sets an above-statutory requirement, or the insurer imposes stricter limits \u2014 particularly where high-rack storage, automated systems, or hazardous goods are involved. A fire safety engineer engaged at the early design stage will model the actual fire load, sprinkler suppression capacity, and evacuation routes to produce a project-specific compartment layout that satisfies all applicable requirements simultaneously.<\/p>\n
For architects specifying a warehouse or distribution centre, the practical implication is that compartment size cannot be read from a single table. The fire safety calculation drives the compartment geometry, and the compartment geometry drives the number, location, and specification of fire-rated openings. Getting this sequence right at the drawing stage prevents costly revisions during permitting. When compartmentalisation sizing is relevant to a project, standards such as NEN 6060 and NEN 6079 may apply; for car parks, NEN 6067 is the relevant equivalent standard. Given the complexity of these calculations, we recommend consulting a qualified fire safety engineer or contacting Metacon-Next directly rather than drawing conclusions from general guidance.<\/p>\n
Contact us<\/a>\n <\/div>\n<\/div>\n A fire compartment boundary is formed by a continuous assembly of fire-resistant construction elements: walls, floors, roof structures where applicable, and the closures within them such as doors, windows, and service penetrations. Every element in the boundary must achieve the same fire resistance classification, because the compartment is only as strong as its weakest point. A single unprotected cable penetration or an undersized door is sufficient to invalidate the compartment.<\/p>\n In warehouse construction, the boundary elements that most frequently require careful specification are:<\/p>\n The continuity principle is non-negotiable. Architects specifying compartment boundaries should verify at the drawing stage that every element \u2014 including junctions between wall types and the perimeter sealing of door frames \u2014 has a documented fire resistance classification that matches the overall compartment requirement.<\/p>\n The fire resistance classification required for a warehouse door depends on the compartment classification established by the project-specific fire safety calculation, not on a single fixed rule. Classification is expressed per EN 13501-2 in terms of performance criteria and duration. The three performance criteria are:<\/p>\n These criteria are combined with a duration in minutes \u2014 for example EW 60, EI1 60, or EI2 120. It is important never to write “EI” without specifying whether it is EI1 or EI2, as these are distinct performance levels with different insulation requirements.<\/p>\n It is equally important not to conflate EW and EI classifications. EW means the door maintains integrity and limits radiant heat transfer, but does not fully insulate against temperature rise on the unexposed side \u2014 this is the Dutch regulatory baseline. EI1 and EI2 both add an insulation requirement on top of integrity, with EI1 being the stricter of the two. Which classification is required for a specific warehouse door depends on the project’s fire safety calculation, not on a general rule. A fire safety engineer or the local authority is the correct point of reference for that determination.<\/p>\n The duration component \u2014 30, 60, 90, or 120 minutes \u2014 is also project-specific. A warehouse compartment wall requiring EI1 60 requires doors that are independently tested and classified to EI1 60 or higher. Specifying a door with a lower classification or a different performance criterion, even marginally, means the compartment boundary is not compliant. Metacon-Next’s fire-rated industrial doors<\/a> are available across a range of EW, EI1, and EI2 classifications and durations, tested in accordance with EN 1634-1 and classified per EN 13501-2 by Efectis, giving architects a documented basis for specification.<\/p>\n A fire-rated industrial door fits into a compartment wall through a certified installation assembly that includes the door leaf, the frame, the anchoring into the surrounding structure, and the perimeter seal between frame and wall. The classification \u2014 for example EI1 60 \u2014 applies to this complete assembly as tested, not to the door leaf in isolation. Any deviation from the tested configuration, such as a different frame depth, altered anchoring method, or modified perimeter seal, can invalidate the certification.<\/p>\n In warehouse environments, the installation conditions are more demanding than in standard commercial construction. Openings are often significantly wider and taller to allow forklift passage, pallet racking access, or internal transport vehicles. This means the door must be an industrial-scale product \u2014 a fire-rated roller door, overhead door, or sliding door \u2014 rather than a standard personnel door. The structural wall around the opening must be capable of carrying the door’s dead load and the reaction forces from the frame anchoring without deflection that would compromise the seal.<\/p>\n The frame-to-wall junction is a critical detail. Gaps between the frame and the surrounding masonry or concrete must be filled with fire-rated intumescent or mineral wool sealing, specified and executed in accordance with the manufacturer’s installation instructions. Architects reviewing shop drawings should confirm that the installation detail submitted by the contractor matches the tested configuration documented in the manufacturer’s classification report. Metacon-Next<\/a> supplies full installation documentation and technical drawings for each product type, allowing this verification to happen before work begins rather than during a fire safety inspection.<\/p>\n Contact us<\/a>\n <\/div>\n<\/div>\n For a fire-rated warehouse door, an architect must be able to demonstrate that the specified product is CE-certified, independently tested to EN 1634-1, and classified in accordance with EN 13501-2. For industrial fire doors, CE marking is governed by two standards that apply simultaneously: EN 16034, which covers fire- and smoke-resisting closing elements, and EN 13241, which applies to industrial doors generally and is mandatory regardless of fire rating. The minimum documentation set consists of the CE declaration of performance, the classification report from the accredited test laboratory, and the manufacturer’s installation instructions that define the tested configuration. For projects with sustainability requirements, an Environmental Product Declaration (EPD) is increasingly required at the specification stage.<\/p>\n In practice, this documentation serves two purposes. First, it supports the building permit application by demonstrating that the specified product meets the fire resistance classification required by the fire safety calculation. Second, it provides the basis for inspection \u2014 both during construction and in any post-occupancy fire safety review. An incomplete documentation set creates professional liability for the architect if a question arises about product compliance.<\/p>\n The documentation an architect should request and retain for each fire-rated door specification includes:<\/p>\n One practical challenge architects face is that not all manufacturers make this documentation publicly available before an order is placed. Requesting it at the specification stage \u2014 before a contractor is appointed \u2014 is the correct approach, and a manufacturer’s willingness to provide it promptly is itself an indicator of product maturity. Metacon-Next publishes classification reports and EPDs<\/a> for its product lines, and the MetaConfigurator portal gives registered architects direct access to technical drawings, BIM files, and dimensional data without requiring a sales inquiry. For architects closing a specification file, that level of documentation transparency<\/a> removes a significant source of delay and uncertainty.<\/p>\n If you are specifying fire-rated openings for a warehouse project and need product documentation or technical support, contact Metacon-Next directly<\/a> or request a quotation<\/a> through the dealer network to confirm product availability and classification for your specific opening dimensions.<\/p>\n","protected":false},"excerpt":{"rendered":" Discover how fire compartmentation works in large warehouses \u2014 from EI-rated doors to documentation architects must retain.<\/p>\n","protected":false},"author":12,"featured_media":27736,"template":"","categories":[],"tags":[],"class_list":["post-27408","knowledge-base","type-knowledge-base","status-publish","has-post-thumbnail","hentry"],"yoast_head":"\n\n
What fire resistance classification does a warehouse door need?<\/h2>\n
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How do fire-rated industrial doors fit into a compartment wall?<\/h2>\n
What documentation must an architect provide for a fire-rated warehouse door?<\/h2>\n
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