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infoAPA in Europe information wizard A quick and easy first step to finding out about products, standards and design tips

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Specifiers can now locate CE-marked North American plywood, oriented strand board, and engineered wood products throughout Europe.

APA wood-based products comply with the standards and regulations required in Europe and  by third party certification bodies.  Whatever your construction needs, this guide helps you find the right set of European standards  for your specific purpose. Check APA updates for news on which standards are being reviewed.

From loadbearing advice to environmental exposure, the APA tables are easy to access, even on a smart phone.

APA explains how to assess a product’s environmental impact and the role of Environmental Product Declaration (EPD).  Learn more about EN 15804, designed to assess construction sustainability.  APA also provides insights into green buildings and  how to determine a product has been legally harvested.  Check the obligations of the European Timber Regulation (EUTR) and the Construction Products Regulation (CPR).

Technical information includes the updated EN 335: 2013 with APA’s moisture content guide matching the standard’s Use Classes with the Services Classes in Eurocode 5.  Find out about specifying APA concrete formwork panels , understanding trademarks, and access the performance characteristics and application tables for US trademarked products, from plywood and OSB to Structural Composite Lumber.

APA-The Engineered Wood Association is respected worldwide as an authority on engineered wood products. If you have a question on APA resources in Europe, start with our information wizard or contact our technical desk.


Publications Library


Technical publications and guidelines explaining how to use APA products in both structural and non-structural applications. Specially for architects and specifiers, case studies illustrating the creative use of engineered wood.

Free to download

Technical Support

Access to engineered wood specialists to answer your questions about the specification and application of APA products. Ask a question online or telephone 001 253 620 7400.

Online Wood University

The online research centre for learning more about engineered wood. Learn more


Quality Control

Quality auditing and laboratory testing are integral to APA. Its OSB and plywood member mills operate one of the strictest systems of third-party certification, based on ISO 9000, in the global structural panel industry.


Engineered wood products offer strength, dependability, versatility and value for a variety of construction projects – from homes to bridges, even for those structures facing severe weather challenges. For wood-frame construction, APA provides architects and specifiers with more than 200 free CAD details and detailed product specification guides to plywood, OSB, LVL and I-joists.


Plywood and OSB panels are suitable for a host of non-construction applications, from upholstered furniture and truck linings to shelving and pallets. They offer increased value, better ability, and long-term performance.   For more details, see APA’s Performance Panels and the Industrial Panel Selection Guide (download here) to help complete your selection.


Green Topics

Life Cycle Assessment

Life cycle analysis (LCA) is an essential part of green building, offering an objective and consistent way to measure the environmental impact of all types of constructions and the materials from which they are made. See APA’s Role of LCA in Green Building and LCA terms.

Sustainability & Standards

The construction industry has developed the Environmental Product Declaration (EPD) to support a low carbon, more resource efficient, sustainable built environment. This provides information on a product’s environmental impact, and EPDs are available for US plywood, OSB, I-Joists and LVL. These work in conjunction with EN 15804, the most important set of European standards for assessing the sustainability of construction products and buildings.

Forest Management & Certification

US wood products come from sustainably managed resources. They consume far less energy than metal and petroleum based products, with a significantly smaller carbon footprint. This renewable, recyclable and biodegradable resource is easily manufactured into products which reduce waste, by decreasing disposal costs and product damage.

APA in Europe Wizard

All Questions OSBPlywood

What is a ‘life cycle stage’ and how do these link to the environmental assessment of whole buildings?

A good starting point is our Green Topics section and  Types of EPD and the five life cycle stages

How do core category rules link with environmental product declarations?

Whose responsibility is it to check that wood products being imported into the EU do not originate from illegally sourced timber supplies?

Does the EUTR require mills to provide any extra documentation for customs entry into the European Union?

Must all plywood and OSB panels carry a CE marking?

What is the definition of a construction product under the CPR?

What is a Declaration of Performance referred to under the Construction Products Regulation?

What is the difference between Structural 1 and Exposure 1?

The CE-mark on an APA plywood panel means it conforms to European Standards – but which ones?

I want to use a Rated Sheathing panel for flooring/ roofing application, what info do I need to know?

Plywood: Span rating
OSB: Span rating

What extra strength benefits do Structural 1 OSB panels provide over standard Rated Sheathing panels?

Do APA panels give off formaldehyde?

Plywood: Formaldehyde
OSB: Formaldehyde

What is the difference between a touch-sanded panel and sanded panel?

How do APA veneer grades match those given in the European standards

APA has produced two easy to follow guides to help match the grade numbers given on a US finished plywood panel with the requirements of  EN 635-3.

Detailed guide (below) listing permissible defects – with maximum sizes.

Simplified guide to the US PS 1-09 veneer grading rules and appearance grades in EN 635-3 based on the appearance of the surface veneers. Equivalents cannot be exactly compared as two different sets of grading rules apply.

How do I correctly gauge the face appearance a plywood Siding panel?

I want to specify an APA panel for concrete formwork – what do I need to know?

Are APA panels tongue and grooved on all four edges?

I am not familiar with the term ‘Sized for Spacing’ – what is its significance?

How are Performance Category and thickness related?

I’d like to know more about a panel’s Span Rating and how it links to thickness.

Plywood: Span rating
OSB: Span rating

What is Span Rating on the APA trademark and why is it important?

Plywood: Span rating
OSB: Span rating

What is the difference between Exposure 1 and Exterior plywood panels? What are their appropriate uses?

What are the main OSB panels likely to be available in Europe?

What are the main plywood panels likely to be available in Europe?

What are the main European standards that I would need to be aware of for OSB panels?

The main standards are: EN 13986 and EN 300

What are the main European standards that I would need to be aware of for plywood panels?

The main standards are: EN 13986, EN 636, EN 314, EN 635-3