SIST EN 12369-3:2022

Wood-based panels - Characteristic values for structural design - Part 3: Solid wood panels

This document provides information on the characteristic values for use in designing structures incorporating wood-based panels. The characteristic values given are as defined in EN 1995-1-1.
This document includes the characteristic values of the mechanical properties and of the raw density for solid-wood panels complying with EN 13353:2022 technical classes SWP/1 S, SWP/2 S, SWP/3 S.

Holzwerkstoffe - Charakteristische Werte für die Berechnung und Bemessung von Holzbauwerken - Teil 3: Massivholzplatten

Dieses Dokument gibt Informationen über charakteristische Werte für die Berechnung und Bemessung von Bauwerken, in denen Holzwerkstoffe eingesetzt werden. Die angegebenen charakteristischen Werte entsprechen den Definitionen in EN 1995-1-1.
Dieses Dokument enthält die charakteristischen Werte der mechanischen Eigenschaften und der Rohdichte von Massivholzplatten der technischen Klassen SWP/1 S, SWP/2 S und SWP/3 S nach EN 13353:2022.

Panneaux à base de bois - Valeurs caractéristiques pour la conception des structures - Partie 3 : Bois panneautés

Le présent document donne des informations sur les valeurs caractéristiques à utiliser dans la conception des structures incorporant des panneaux à base de bois. Les valeurs caractéristiques données sont telles que définies dans l’EN 1995 1 1.
Le présent document contient les valeurs caractéristiques des propriétés mécaniques et de la masse volumique des bois panneautés conformes à l’EN 13353:2022, classes techniques SWP/1 S, SWP/2 S, SWP/3 S.

Lesne plošče - Karakteristične vrednosti za projektiranje - 3. del: Masivne lesne plošče

Ta dokument vsebuje informacije o značilnih vrednostih za uporabo pri načrtovanju struktur, ki vključujejo lesne plošče. Podane značilne vrednosti so opredeljene v standardu EN 1995-1-1.
Ta dokument vključuje značilne vrednosti mehanskih lastnosti in gostote za masivne lesne plošče, ki so skladne s tehničnimi razredi SWP/1 S, SWP/2 S, SWP/3 S standarda EN 13353:2021.

General Information

• Status: Published
• Public Enquiry End Date: 14-Mar-2021
• Publication Date: 23-Aug-2022
• ICS: 79.060.99 - Other wood-based panels
• Technical Committee: LLZ - Les, lesni izdelki in zaščita lesa
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 05-Aug-2022
• Due Date: 10-Oct-2022
• Completion Date: 24-Aug-2022
• Directive: 305/2011 - Regulation (eu) No 305/2011 of the European Parliament and of the Council of 9 march 2011 laying down harmonised conditions for the marketing of construction products and repealing council directive 89/106/eec
• Mandate: M/113 - Mandate to CEN/CENELEC concerning the execution of standardization work for harmonized standards on wood based panels
• Ref Project: EN 12369-3:2022 - Wood-based panels - Characteristic values for structural design - Part 3: Solid wood panels

Relations

• Replaces: SIST EN 12369-3:2009 - Wood-based panels - Characteristic values for structural design - Part 3: Solid-wood panels
• Effective Date: 01-Sep-2022

Overview

EN 12369-3:2022 - "Wood‑based panels - Characteristic values for structural design - Part 3: Solid wood panels" (CEN) defines the characteristic mechanical properties and raw density values to be used when designing structures that incorporate solid wood panels (SWP) complying with EN 13353:2022. The values are given in the format required by EN 1995‑1‑1 (Eurocode 5) and are intended as minimum characteristic values for use in structural design.

Key topics and requirements

• Scope: Characteristic strength, stiffness (modulus of elasticity) and raw density for SWP technical classes SWP/1 S, SWP/2 S, SWP/3 S.
• Data presentation: Tables provide characteristic densities, strength properties (bending, tension, compression, shear) and mean stiffness values for specified nominal thickness ranges (single‑layer and multi‑layer panels).
• Stiffness convention: Mean stiffness values are listed; the 5‑percentile stiffness used in design should be taken as 0.85 × mean stiffness.
• Modification factors: Values must be adjusted for service class and load duration using modification factors (k_mod, k_def) in EN 1995‑1‑1:
  • Single‑layer SWP: apply solid wood modification factors.
  • Multi‑layer SWP: apply plywood modification factors.
  • Chemically/thermally treated wood: EN 1995‑1‑1 factors cannot be used - use testing per EN 1156 to derive factors.
• Testing and sampling: Where manufacturers declare values different from the standard tables, values must be determined using EN 1058 sampling and EN 789 test methods.
• Minimum appearance/class: Panels must meet minimum appearance classes per EN 13017‑1/2 as applicable.

Practical applications and users

• Structural engineers and designers using Eurocode 5 to model and dimension timber floors, walls, roofs or structural panel systems with solid wood panels.
• Manufacturers of solid wood panels (SWP) preparing technical datasheets, conformity documentation and performance declarations.
• Product certifiers, specifiers, building authorities and contractors verifying that panel properties meet design assumptions.
• Researchers and test laboratories conducting EN 789/EN 1058 testing to produce certified characteristic values.

Related standards

• EN 1995‑1‑1 (Eurocode 5) - Design rules and modification factors
• EN 13353:2022 - Solid wood panels requirements
• EN 789 - Test methods for mechanical properties of wood‑based panels
• EN 1058 - Determination of characteristic 5‑percentile and mean values
• EN 1156 - Duration of load and creep factors
• EN 13017‑1/2 - Surface appearance classification
• EN 338, EN 13986 - Strength classes and construction product rules

EN 12369-3:2022 provides the standardized characteristic values and the rules to adapt them for service conditions - essential reference for safe, code‑compliant structural design using solid wood panels.

Standards Content (Sample)

SLOVENSKI STANDARD
01-september-2022
Nadomešča:
SIST EN 12369-3:2009
Lesne plošče - Karakteristične vrednosti za projektiranje - 3. del: Masivne lesne
plošče
Wood-based panels - Characteristic values for structural design - Part 3: Solid wood
panels
Holzwerkstoffe - Charakteristische Werte für die Berechnung und Bemessung von
Holzbauwerken - Teil 3: Massivholzplatten
Panneaux à base de bois - Valeurs caractéristiques pour la conception des structures -
Partie 3 : Bois panneautés
Ta slovenski standard je istoveten z: EN 12369-3:2022
ICS:
79.060.99 Druge lesne plošče Other wood-based panels
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 12369-3
EUROPEAN STANDARD
NORME EUROPÉENNE
July 2022
EUROPÄISCHE NORM
ICS 79.060.99 Supersedes EN 12369-3:2008
English Version
Wood-based panels - Characteristic values for structural
design - Part 3: Solid wood panels
Panneaux à base de bois - Valeurs caractéristiques Holzwerkstoffe - Charakteristische Werte für die
pour la conception des structures - Partie 3 : Bois Berechnung und Bemessung von Holzbauwerken - Teil
panneautés 3: Massivholzplatten
This European Standard was approved by CEN on 20 April 2022.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 12369-3:2022 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions and symbols . 4
3.1 Terms and definitions . 4
3.2 Symbols . 6
3.2.1 General. 6
3.2.2 Main symbols . 7
3.2.3 Subscripts . 7
4 General. 7
5 Characteristic values for solid wood panels . 8
5.1 General. 8
5.2 Load-bearing panels for use in all service classes . 8
Annex A (informative) Presentation of characteristic values . 10
Bibliography . 11
European foreword
This document (EN 12369-3:2022) has been prepared by Technical Committee CEN/TC 112 “Wood-
based panels”, the secretariat of which is held by DIN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by January 2023, and conflicting national standards shall
be withdrawn at the latest by January 2023.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 12369-3:2008.
This document is intended to be used in conjunction with EN 1995-1-1.
The EN 12369 series Wood-based panels – Characteristic values for structural design is currently
composed of the following parts:
— Part 1: OSB, particleboards and fibreboards;
— Part 2: Plywood;
— Part 3: Solid wood panels;
Annex A is informative.
Compared to EN 12369-3:2008 the following changes have been made:
a) modification of the thickness range and of the values for single-layer panels given at Table 2 in
conjunction with changes in EN 13353;
b) modification the thickness ranges and of the values for multi-layer panels given at Table 3 in
conjunction with changes in EN 13353;
c) editorial changes.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia,
Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland,
Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North
Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United
Kingdom.
1 Scope
This document provides information on the characteristic values for use in designing structures
incorporating wood-based panels. The characteristic values given are as defined in EN 1995-1-1.
This document includes the characteristic values of the mechanical properties and of the raw density for
solid-wood panels complying with EN 13353:2022 technical classes SWP/1 S, SWP/2 S, SWP/3 S.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN 789, Timber structures - Test methods - Determination of mechanical properties of wood based panels
EN 1058, Wood-based panels - Determination of characteristic 5-percentile values and characteristic mean
values
EN 1156, Wood-based panels - Determination of duration of load and creep factors
EN 1995-1-1, Eurocode 5: Design of timber structures - Part 1-1: General - Common rules and rules for
buildings
EN 13017-1, Solid wood panels - Classification by surface appearance - Part 1: Softwood
EN 13017-2, Solid wood panels - Classification by surface appearance - Part 2: Hardwood
3 Terms and definitions and symbols
3.1 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp
— IEC Electropedia: available at https://www.electropedia.org/
3.1.1
characteristic values
3.1.1.1
characteristic strength value
population 5-percentile value obtained from the results of tests with a duration of 300 s at an equilibrium
moisture content of the test pieces relating to a temperature of 20 °C and a relative humidity of 65 %
3.1.1.2
characteristic stiffness value
either the population 5-percentile or the mean value obtained
...