What are the most commonly used NEN standards in construction?

The construction industry relies heavily on standards and guidelines that ensure the safety, quality, and durability of structures. NEN standards play a central role in this. Whether you are a contractor, a structural engineer, or an industrial company working with heavy installations such as crane systems, familiarity with the right standards is essential. In this article, we answer the most frequently asked questions about NEN standards in construction, so you know exactly where you stand.

What are NEN standards and why are they important in construction?

NEN standards are technical agreements and guidelines established by the Royal Netherlands Standardization Institute (NEN) to guarantee quality, safety, and interoperability in products, processes, and services. In construction, they provide a common language between clients, contractors, structural engineers, and suppliers.

Without shared standards, every party would apply its own interpretation of what is safe or high-quality. NEN standards prevent this by establishing clear minimum requirements. In the construction sector, these cover matters such as structural strength, fire safety of materials, floor load capacity, and the safety of machinery and lifting equipment. They form the basis for permits, tenders, and technical inspections. Anyone who builds or installs without knowing the relevant standards risks rejections, liability, and unsafe situations.

Which NEN standards are most commonly used in construction?

The most widely used NEN standards in construction are NEN 6700 and the Eurocode series (NEN-EN 1990 through NEN-EN 1999) for structural safety, NEN 2580 for area measurement, NEN 8700 for existing buildings, and NEN-EN 13001 for crane structures. Together, these standards form the backbone of technically sound construction in the Netherlands.

An overview of the most commonly applied standards by category:

• Structural safety: The Eurocodes (NEN-EN 1990 through NEN-EN 1999) determine how structures must be calculated and designed based on loads, material properties, and safety margins.
• Existing buildings: NEN 8700 and NEN 8701 apply to the assessment and renovation of existing structures and use adapted safety levels compared to new construction.
• Area measurement: NEN 2580 is the standard for measuring and calculating usable floor areas in buildings, widely applied in real estate and construction.
• Fire safety: NEN 6069 and NEN-EN 13501 govern the fire reaction and fire resistance of building materials and structural components.
• Hoisting and lifting: NEN-EN 13001 and NEN-EN 14492 are essential for the safe design and use of crane systems and lifting equipment in industrial environments.

For companies working with heavy lifting and crane installations, the standards relating to hoisting and lifting are particularly relevant. A specialized partner that designs and builds crane systems in full compliance with the applicable NEN-EN standards ensures that every installation meets the highest safety requirements.

What is the difference between NEN, NEN-EN, and NEN-ISO standards?

The difference lies in the origin and scope of the standard. NEN is a purely Dutch standard, established by the Royal Netherlands Standardization Institute. NEN-EN is a European standard developed by the European Committee for Standardization (CEN) and subsequently adopted in the Netherlands. NEN-ISO is an international ISO standard that has been adopted in the Netherlands.

In practice, this means the following:

• NEN: Valid in the Netherlands only. Increasingly being replaced by European or international equivalents, but remains relevant for specifically Dutch regulations and situations.
• NEN-EN: Applies in all EU member states. When a NEN-EN standard is introduced, conflicting national standards must be withdrawn. This creates a level playing field across Europe.
• NEN-ISO: Has global reach. Often applied in sectors with international supply chains, such as manufacturing, logistics, and technology.

In construction and industry today, NEN-EN standards are predominantly used, particularly the Eurocodes for structural design. NEN-ISO standards are more common in quality management systems (such as ISO 9001) and specific technical product standards.

When are NEN standards mandatory and when are they voluntary?

NEN standards are in principle voluntary, unless they have been made legally mandatory through legislation and regulations, or have been contractually included in an assignment or specification. In construction, many standards are indirectly mandatory because they are embedded in the Building Decree (now: the Decree on Construction Works in the Living Environment) or in European directives.

The reality is more nuanced than a simple yes or no:

• Legally mandatory: When a standard is incorporated into a law, general administrative order, or ministerial regulation, compliance is legally enforceable. The Eurocodes have been made mandatory in the Netherlands for new construction through the Building Decree.
• Contractually mandatory: In tenders and construction contracts, standards are often explicitly prescribed. Anyone who submits a bid for a project thereby commits to compliance.
• Voluntary but authoritative: Standards that are not legally anchored still represent the recognized state of the art. In the event of an incident or dispute, a court or insurer will assess whether you deviated from that standard and whether such deviation was justified.

For machinery and lifting equipment, the Machinery Directive (and from 2027, the Machinery Regulation) also applies, whereby harmonized NEN-EN standards confer a presumption of conformity. If you comply with the standard, you are in principle compliant with the directive.

How can a construction company stay up to date on new NEN standards?

As a construction company, the best way to stay informed about new NEN standards is to subscribe to the NEN Connect database, actively participate in standards committees or industry associations, and regularly follow publications from NEN and relevant regulatory authorities. Standards are revised with some regularity, and it is crucial to know in good time when a standard changes.

Concrete steps you can take:

1. NEN Connect: Through NEN’s online platform, you can consult standards, track changes, and set up alerts for standards relevant to your sector.
2. Industry associations: Organizations such as Bouwend Nederland, FME, or the Association of Crane Hirers actively inform members about changes to standards and their practical implications.
3. Standards committees: Companies can participate in NEN standards committees and thereby directly influence the development of new standards.
4. Education and training: Regular continuing education for technical staff ensures that knowledge of applicable standards remains current.
5. Collaboration with certified partners: Working with suppliers and installers who are themselves certified and actively keep up with standards reduces the risk that you, as a client, overlook something.

It is wise to continuously monitor developments relating to relevant NEN-EN standards for crane systems and lifting equipment. This guarantees that every installation you design, build, and maintain complies with the current standards and legislation — providing certainty not only at the time of commissioning, but also during annual inspections and reviews.

How BKRS helps with NEN standard compliance

BKRS specializes in designing, building, and maintaining crane systems and lifting equipment that fully comply with the applicable NEN-EN standards. Whether it concerns a new installation or the re-inspection of an existing system, BKRS offers a complete solution with standards compliance at its core.

What BKRS does for you:

• Design and realization of crane systems in accordance with NEN-EN 13001 and NEN-EN 14492
• Support during inspections and reviews, ensuring you always meet current requirements
• Active monitoring of changes to standards, keeping your installations up to date
• Advice on which standards apply to your specific situation or project
• Maintenance and certification of lifting and crane installations for industrial environments

Want to be certain that your installations comply with all applicable NEN standards? Contact BKRS and receive no-obligation advice from a specialist.