Section Contents

EN 12871 : 2013

Wood-based panels – Determination of performance characteristics for load bearing panels for use in floors, walls and roofs

This standard provides methods for determining performance characteristics for concentrated loads and impact on wood-based panels used for

  • structural floor and roof decking and
  • wall sheathing

Additional information is now contained in Annex B, giving proposals for national performance requirements.  These should be applied where there are no national requirements. EN 12871 is referenced in the harmonised European standard for wood-based panels, EN 13986.

The following modifications have been made to the original EN 12871:2010:

  1. Examples of national performance requirements are given in the new section, Annex B
  2. Annex B.2.3 includes a new reduction factor for ultimate limit state
  3. New info on soft body impact tests: three impact classes have been defined relating to performance.  These can be linked to load categories as suggested in Annex B3
  4. Information on testing of racking behaviour or uniformly distributed loads are not covered in this standard – refer to EN 594 (not given here) or EN 1995-1-1 (Eurocode 5) respectively
  5. The option to increase the span based on the roof slope is included in Annex B.2.4
  6. This revision now incorporates the evaluation methods from EN 1058
  7. The load pad used for point load testing has changed and is now 50 mm x 50 mm in all cases, see Annex A

Panel product specification standards and technical classes for structural decking (floors/roofs) and wall sheathing

Panel Type  Technical Class Relevant European Standards

OSB

OSB/2

OSB/3

OSB/4

EN 300

Plywood

EN 636-1

EN 636-2

EN 636-3

EN 636

LVL

LVL-1

LVL-2

LVL-3

EN 14279

EN 14374

EN 1195 applies to floors but not roofs. However, the test procedure in EN 1195 is also relevant to roofing provided that the apparatus is appropriately modified.  Annex A (normative) of EN 12871 gives a modification to EN 1195 to cover this issue.

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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