Shower enclosure standards: EN 14428, CE marking and the DoP
Anyone who sells or installs shower enclosures must be able to answer a very practical question: does the product really comply with the standards in force? Meeting shower enclosure standards is not just a sales slogan, but a legal requirement that directly concerns the safety of the people who use the enclosure every day. The reference standard in Europe is EN 14428, which sets out the functional requirements and test methods for shower enclosures intended for domestic use. Knowing what this standard requires, what CE marking means and how to read a Declaration of Performance (DoP) is essential for everyone in the sector, from retailers to designers and installers.
What EN 14428 is and why it defines a compliant shower enclosure
EN 14428 is the harmonised standard governing shower enclosures for domestic use in the European Union, implementing Construction Products Regulation (EU) 305/2011. It is not an optional guideline: a compliant shower enclosure must pass a series of laboratory tests covering cleanability, impact resistance, corrosion resistance, resistance to chemicals and staining, resistance to wet-dry cycles, fatigue resistance, stability and watertightness. Only by passing all of these tests can the manufacturer affix the CE marking and declare the product compliant.
Cleanability and impact resistance
The first requirement of a shower enclosure that meets the standard concerns the cleanability of its surfaces: glass and plastic materials must be able to be cleaned without being damaged or losing transparency over time. Alongside this comes impact resistance, assessed differently depending on whether the doors are made of glass or plastic. For glass, safety is also guaranteed by a further specific standard, EN 12150-2:2005, which covers the thermally toughened safety glass used in doors and fixed panels.
Fatigue resistance: the 20,000-cycle test
One of the most frequently cited requirements for a compliant shower enclosure is fatigue resistance, in other words the ability of the doors to withstand everyday use over time. The test involves opening and closing the shower enclosure for at least 20,000 cycles, after which the product must show no functional deterioration: hinges, wheels, tracks and sliding systems must continue to work properly. Anyone buying a shower enclosure should always ask the supplier for the documentation of this test, because it is one of the most tangible indicators of build quality.
Watertightness and stability
Watertightness is another essential requirement: under the test conditions set out in the standard, a compliant shower enclosure must keep water inside the shower area, without leaks into the rest of the bathroom. The stability test, on the other hand, checks that the structure can withstand an impact representative of the human body over a wide area without suffering damage that could injure the user. The corrosion resistance of the profiles, often made of coated or anodised aluminium, is also verified with specific tests such as the cross-cut test.
CE marking and Declaration of Performance: what retailers and specifiers should demand
The CE marking on a compliant shower enclosure is not just a sticker, but confirmation that the manufacturer has carried out all the tests required by EN 14428 and has drawn up the Declaration of Performance, the document that accompanies the construction product and describes its essential characteristics. A retailer or specifier selecting a supplier should always request this document before adding the product to their range, because it is the only tool that allows the declared conformity to be checked objectively.
What the Declaration of Performance must contain
The Declaration of Performance of a compliant shower enclosure must state the product’s unique identification code, the reference to the harmonised standard EN 14428, the essential characteristics tested – such as cleanability, impact resistance and durability – with their results, as well as the details of the manufacturer and of any authorised representative. Without this document, the CE marking on the packaging or product label has no legal value, and the retailer takes on a risk that also falls on the end customer.
The consequences of a non-compliant shower enclosure
Selling or installing a product without valid CE marking exposes the retailer to real consequences: from withdrawal of the product from the market ordered by the market surveillance authorities, to the administrative penalties provided for placing on the market construction products that do not comply with Regulation (EU) 305/2011. In the event of an accident, the absence of the Declaration of Performance also makes it harder to demonstrate professional due diligence in the face of any dispute. That is why keeping the technical documentation of every compliant shower enclosure sold, together with the supplier’s purchase invoices, is a practice that protects both the retailer and the end customer.
Questions to ask before choosing a supplier
Before signing a supply agreement, anyone wanting to sell shower enclosures that meet the standards should check a few points: the availability of an up-to-date Declaration of Performance, the date and the laboratory that carried out the EN 14428 tests, the thickness and type of glass used, toughened in accordance with EN 12150-2, and the presence of a certified quality management system, such as EN ISO 9001, which attests to the repeatability of production processes over time.
CSA certifications: the guarantee of a shower enclosure that meets the standards
CSA Box Doccia builds every compliant shower enclosure on a verifiable system of certifications. The company is certified to UNI EN ISO 9001:2015 for its quality management system, has been awarded the EURAS/EWAA quality label and submits its products to the tests required by EN 14428. The glass used in doors and fixed panels complies with EN 12150-2:2005, while CE marking covers the entire range, from corner and quadrant models to walk-in solutions and those designed for accessibility. Retailers of CSA Box Doccia can therefore rely on a supply chain that documents every stage of compliance, from raw material to finished product. For more on the company’s philosophy and certifications, see the CSA About Us page.
Compliant shower enclosures for accessible bathrooms too
Compliance with EN 14428 also applies to products designed for older people or those with reduced mobility. A compliant shower enclosure for an accessible bathroom must meet the same strength, watertightness and safety requirements as other models, with the addition of design features such as a floor-level shower tray, wide-opening doors and glass available in different thicknesses, for example 4 or 6 millimetres. CSA’s solutions for disabled and elderly users follow this twin track: regulatory compliance and genuine accessibility.
FAQ
How can you tell if a shower enclosure meets the standards?
A compliant shower enclosure can be recognised by the CE marking on the packaging or label, accompanied by the Declaration of Performance, which the manufacturer must make available on request. Without these two elements, it is impossible to verify the product’s compliance with EN 14428.
How many cycles must a shower enclosure withstand to be considered compliant?
The fatigue resistance test set out in the standard requires at least 20,000 opening and closing cycles without functional deterioration. It is one of the most objective parameters for assessing the build quality of a compliant shower enclosure.
Is CE marking enough to guarantee safety?
CE marking indicates that the manufacturer declares conformity with the requirements of EN 14428, but it should always be checked together with the Declaration of Performance. A reliable compliant shower enclosure is one for which both documents are consistent and available.
What is the difference between a shower enclosure and a shower tray from a regulatory point of view?
Shower enclosures are governed by EN 14428, while shower trays fall under EN 14527, which defines their cleanability, surface appearance, water drainage and base stability. A complete project should therefore check both certifications, not just that of the shower enclosure.
Choosing a shower enclosure that meets the standards means protecting the end user and, for those who sell or install it, reducing the commercial and legal risk associated with non-compliant products. EN 14428, CE marking and the Declaration of Performance are the practical tools for checking this, but they must always be requested and verified, never simply taken for granted. CSA Box Doccia offers its retailers a fully certified range: to request information or become a retailer, you can contact CSA.
