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EN 12369-2: 2011

Wood-based Panels – Characteristic Values for Structural Design – Plywood

This provides information on the characteristic values for designing structures incorporating plywood.  These characteristic values given are for use in accordance with Eurocode 5.

The characteristic values tabulated in EN 12369-2:2011 (Table 2) for strength, tension and compression are based on the bending strength class limits appearing in Table 1 of EN 636:2003.  It is important to point out that the inclusion of the new class F35  shown in Table 1 of the updated EN 636:2012 will not be included in Table 2 of EN 12369-2:2011 until its five-year review in 2016.

This means that the current Table 2 of EN 12369-2 :2011 does not reflect the changes in Table 1 of EN 636:2012.

It is the same for the characteristic values tabulated in Table 3 of EN 12369-2:2011.  These values for strength, tension and compression are based on the bending modulus classes and lower limit values appearing in Table 2 of EN 636:2003.  The inclusion of the new class E35 and all changes to the bending modulus lower limit values in Table 2 of the revision to EN 636 dated 2012 will not be reflected in Table 3 of EN 12369-2 until its 5 yearly review in 2016.

This means that the current Table 3 of EN 12369-2:2011 does not reflect the changes in Table 2 of EN 636:2012.

The panel shear modulus, strength in panel shear and planar shear are all related to the density of the wood species used.  In the case of single species panels the density is determined according to EN 323 are expresses as pp,mean.  For panels combining more than one species, the density shall be determined by the species with the lowest density in the composition.  The property value shall be taken from the bottom of the range of density the wood species belong to and is expressed as pw,mean.

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

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?

Does structural panel siding have shear values?

What are mould and mildew, and do they compromise the integrity of engineered wood?

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?

I’d like to know how APA veneer grades match those given in the European standards

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