Section Contents

EN 12369-1: 2001

Wood-based Panels – Characteristic Value for Structural Design – OSB, particleboard and fibreboards

Part 1 provides information on the characteristic values (both the mechanical properties and the density) for use in designing structures incorporating Oriented Strand Board (OSB).  The characteristic values given are defined in Eurocode 5.

The types of OSB panel for which the characteristic values are given comply with the requirements of EN 300: Oriented Strand Boards (OSB) – Definitions, classification and specifications.

  • OSB/2 – Load-bearing panels for use in dry conditions
  • OSB/3 – Load-bearing panels for use in humid conditions
  • OSB/4 – Heavy-duty load-bearing panels for use in humid conditions

The characteristic values given have been determined using the sampling techniques set out in EN 1058 and the testing procedures given in EN 789. Strength and stiffness values are for bending, tension, compression (both parallel and perpendicular), panel shear and planar shear.  The density is also given. The values given in the tables appearing in the standard will need to be modified for duration of load (kmodkdef) and for changes in the service class depending on which panel type is being used in which climatic environment.  The modification factors can be found in Eurocode 5.

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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