M/113 - CPD: Wood based 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 both the mechanical properties and density for the panels set out below:
—   OSB/2, OSB/3 and OSB/4, complying with EN 300;
—   Particleboard, P4, P5 P6, P7 complying with EN 312;
—   Hardboard, HB.HLA2 complying with EN 622 2;
—   Medium board, MBH.LA2 complying with EN 622 3;
—   MDF.LA and MDF.HLS complying with EN 622 5;
—   MDF.RWH complying with EN 622 5.

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.
When utilizing the classification system for derivation of plywood characteristic values, this document can only be applied with reference to EN 636.
This document includes the characteristic values of the mechanical properties for plywood complying with EN 636 in bending, tension, compression, panel shear and planar shear. EN 636 classifies bending properties into two sets of classes, one for stiffness and another for strength. Stiffness and strength in tension and compression are related to the same properties in bending.
For shear properties, fixed values determined by correlation to density are provided.
Where optimized values are needed, the characteristic values are determined directly by testing in accordance with EN 789 and EN 1058 or by combination of testing according to the latter two standards and calculation according to EN 14272.
This document applies to panels complying with the three following conditions:
—   5 layers or more and 6 mm overall thickness and more;
—   the ratio of the cumulative thickness of veneers in alternate directions does not exceed 2.5;
—   wood species with a mean density greater than 350 kg/m3 and not exceeding 750 kg/m3.

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.
When utilizing the classification system for derivation of plywood characteristic values, this document can only be applied with reference to EN 636.
This document includes the characteristic values of the mechanical properties for plywood complying with EN 636 in bending, tension, compression, panel shear and planar shear. EN 636 classifies bending properties into two sets of classes, one for stiffness and another for strength. Stiffness and strength in tension and compression are related to the same properties in bending.
For shear properties, fixed values determined by correlation to density are provided.
Where optimized values are needed, the characteristic values are determined directly by testing in accordance with EN 789 and EN 1058 or by combination of testing according to the latter two standards and calculation according to EN 14272.
This document applies to panels complying with the three following conditions:
—   5 layers or more and 6 mm overall thickness and more;
—   the ratio of the cumulative thickness of veneers in alternate directions does not exceed 2.5;
—   wood species with a mean density greater than 350 kg/m3 and not exceeding 750 kg/m3.

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 both the mechanical properties and density for the panels set out below:
—   OSB/2, OSB/3 and OSB/4, complying with EN 300;
—   Particleboard, P4, P5 P6, P7 complying with EN 312;
—   Hardboard, HB.HLA2 complying with EN 622 2;
—   Medium board, MBH.LA2 complying with EN 622 3;
—   MDF.LA and MDF.HLS complying with EN 622 5;
—   MDF.RWH complying with EN 622 5.

This document specifies the determination of free melamine in coated and uncoated wood-based-panels.
NOTE 1   It is also applicable to other wood-based products, to other solid products e.g. impregnates or decorative paper and to liquid materials.
The determination of melamine is performed by extraction using dimethyl sulfoxide (DMSO) and subsequent high-performance liquid chromatography (HPLC) analysis and ultraviolet (UV) detection.
NOTE 2   For determination of melamine in foodstuff, EN 16858 is applicable. For determination of melamine in animal feeding stuffs, EN 17212 is applicable. For determination of melamine in textiles, EN ISO 1833-26 is applicable.

This document specifies the determination of free melamine in coated and uncoated wood-based-panels.
NOTE 1   It is also applicable to other wood-based products, to other solid products e.g. impregnates or decorative paper and to liquid materials.
The determination of melamine is performed by extraction using dimethyl sulfoxide (DMSO) and subsequent high-performance liquid chromatography (HPLC) analysis and ultraviolet (UV) detection.
NOTE 2   For determination of melamine in foodstuff, EN 16858 is applicable. For determination of melamine in animal feeding stuffs, EN 17212 is applicable. For determination of melamine in textiles, EN ISO 1833-26 is applicable.

On the basis of test results from wood-based panel products for structural purposes, this document specifies a method for the determination of:
-   characteristic 5-percentile values of mechanical properties under the assumption of a log-normal distribution of the test data according to EN 14358; and
-   characteristic mean values (50-percentile values) of physical properties under the assumption of a normal distribution of the test data according to EN 14358.
Test data can be determined from tests using the test methods outlined in the test standard EN 789 or other relevant test standard, performance standard or product standard normatively referring to EN 1058.
NOTE   See e.g. EN 1195 and EN 12871.
The statistical evaluation follows the principles of EN 1990:2023 , Annex D of EN 1995-1-1:2004  and of EN 14358:2016.

On the basis of test results from wood-based panel products for structural purposes, this document specifies a method for the determination of:
-   characteristic 5-percentile values of mechanical properties under the assumption of a log-normal distribution of the test data according to EN 14358; and
-   characteristic mean values (50-percentile values) of physical properties under the assumption of a normal distribution of the test data according to EN 14358.
Test data can be determined from tests using the test methods outlined in the test standard EN 789 or other relevant test standard, performance standard or product standard normatively referring to EN 1058.
NOTE   See e.g. EN 1195 and EN 12871.
The statistical evaluation follows the principles of EN 1990:2023 , Annex D of EN 1995-1-1:2004  and of EN 14358:2016.

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.

This document specifies requirements for solid wood panels as specified in EN 12775 with a maximum thickness of 80 mm for use in dry, humid and exterior conditions as specified in service classes 1, 2 and 3 of EN 1995-1-1.
Additional information on supplementary properties for certain applications is given in Annex A.

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.

This document specifies requirements for solid wood panels as specified in EN 12775 with a maximum thickness of 80 mm for use in dry, humid and exterior conditions as specified in service classes 1, 2 and 3 of EN 1995-1-1.
Additional information on supplementary properties for certain applications is given in Annex A.

This document specifies test methods for the determination of characteristics of melamine faced boards (MFB) in accordance with EN 14322.

This document specifies the surface requirements and dimensional tolerances for decorative melamine faced boards for interior use which are common for particleboards, extruded particleboards fibreboards and sandwich boards for furniture.
This document is not applicable to boards laminated with so called priming foils or finish foils and laminates according to EN 438-1 and EN 438-2.
This document is not applicable to laminate floor coverings.
Melamine faced wood-based boards in accordance with this document can be referred to as MFB.

This document specifies test methods for the determination of characteristics of melamine faced boards (MFB) in accordance with EN 14322.

This document specifies the surface requirements and dimensional tolerances for decorative melamine faced boards for interior use which are common for particleboards, extruded particleboards fibreboards and sandwich boards for furniture.
This document is not applicable to boards laminated with so called priming foils or finish foils and laminates according to EN 438-1 and EN 438-2.
This document is not applicable to laminate floor coverings.
Melamine faced wood-based boards in accordance with this document can be referred to as MFB.

ISO 12572:2016 specifies a method based on cup tests for determining the water vapour permeance of building products and the water vapour permeability of building materials under isothermal conditions. Different sets of test conditions are specified.
The general principles are applicable to all hygroscopic and non-hygroscopic building materials and products, including insulation materials and including those with facings and integral skins. Annexes give details of test methods suitable for different material types.
The results obtained by this method are suitable for design purposes, production control and for inclusion in product specifications.

ISO 12572:2016 specifies a method based on cup tests for determining the water vapour permeance of building products and the water vapour permeability of building materials under isothermal conditions. Different sets of test conditions are specified.
The general principles are applicable to all hygroscopic and non-hygroscopic building materials and products, including insulation materials and including those with facings and integral skins. Annexes give details of test methods suitable for different material types.
The results obtained by this method are suitable for design purposes, production control and for inclusion in product specifications.

This Technical Report gives guidance on the use of wood-based panels in structural applications as structural floor and roof decking on joists or structural wall sheathing on studs in accordance with EN 12871. It provides information on:
—   inspection at site;
—   transport and delivery;
—   handling;
—   stacking;
—   storage;
—   moisture content, conditioning and the effects of moisture;
—   cutting and machining;
—   selection;
—   installation.

This Technical Report gives guidance on the use of wood-based panels in structural applications as structural floor and roof decking on joists or structural wall sheathing on studs in accordance with EN 12871. It provides information on:
—   inspection at site;
—   transport and delivery;
—   handling;
—   stacking;
—   storage;
—   moisture content, conditioning and the effects of moisture;
—   cutting and machining;
—   selection;
—   installation.

This European Technical Specification specifies the requirements for uncoated particleboards for use in dry conditions in non load-bearing applications with density below 600 kg/m3.
This Technical Specification applies to particleboard which is mostly homogenous and continuous in its composition and which does not contain hollow spaces, chambers or other type of cavities which can be encountered as honeycombs in sandwich panels or as tubes in extruded boards.
This Technical Specification does not give requirements for extruded particleboards (see EN 14755), flaxboards (see EN 15197) and sandwich panels.
NOTE   Typical applications for lightweight boards are in furniture and non-structural applications e.g. in doors, packaging.

This European Technical Specification specifies the requirements for uncoated particleboards for use in dry conditions in non load-bearing applications with density below 600 kg/m3.
This Technical Specification applies to particleboard which is mostly homogenous and continuous in its composition and which does not contain hollow spaces, chambers or other type of cavities which can be encountered as honeycombs in sandwich panels or as tubes in extruded boards.
This Technical Specification does not give requirements for extruded particleboards (see EN 14755), flaxboards (see EN 15197) and sandwich panels.
NOTE   Typical applications for lightweight boards are in furniture and non-structural applications e.g. in doors, packaging.

This European Standard specifies:
-   concentrated load test and assessment methods for floor and roof decking;
-   soft body impact assessment methods and classification system for floors, roofs and walls.
This European Standard does not include racking testing or uniformly distributed loads as these are covered by testing according to EN 594 or calculation according to EN 1995-1-1 respectively.
This European Standard specifies the procedure for determining the performance characteristics through type testing, of load-bearing wood-based panels fitted on:
a)   structural joists for decking:
1)   in flooring applications in load categories A, B, C and D;
2)   in roof applications in load categories H and I;
for which type testing involves:
i)   punching shear under concentrated loading;
ii)   vertical soft body impact;
b)   studs for walling application for which type testing involves:
1)   pendular soft body impact.
Annex A (normative) lists modifications to EN 1195, particularly the contact area of the loading head that may be used for concentrated loading.
Annex B (informative) provides proposals for national performance requirements.
Annex C (informative) provides examples for a decking application in a floor and a roof.

This European Standard specifies:
-   concentrated load test and assessment methods for floor and roof decking;
-   soft body impact assessment methods and classification system for floors, roofs and walls.
This European Standard does not include racking testing or uniformly distributed loads as these are covered by testing according to EN 594 or calculation according to EN 1995-1-1 respectively.
This European Standard specifies the procedure for determining the performance characteristics through type testing, of load-bearing wood-based panels fitted on:
a)   structural joists for decking:
1)   in flooring applications in load categories A, B, C and D;
2)   in roof applications in load categories H and I;
for which type testing involves:
i)   punching shear under concentrated loading;
ii)   vertical soft body impact;
b)   studs for walling application for which type testing involves:
1)   pendular soft body impact.
Annex A (normative) lists modifications to EN 1195, particularly the contact area of the loading head that may be used for concentrated loading.
Annex B (informative) provides proposals for national performance requirements.
Annex C (informative) provides examples for a decking application in a floor and a roof.

This European Standard specifies a method of determining in a constant climate both a duration of load factor and a creep factor for wood-based panels stressed in flatwise bending with and without a shear component. Details of an alternative but provisional method employing medium sized test pieces are given in Annex A; this method can also be used for test pieces loaded under varying climates.
NOTE   The duration of load factor is necessary to modify the characteristic strength values obtained in short-term structural tests in order to derive long-term values. The creep factor obtained in the test is used to predict a long-term deflection from the initial elastic deflection.

This European Standard specifies a method of determining in a constant climate both a duration of load factor and a creep factor for wood-based panels stressed in flatwise bending with and without a shear component. Details of an alternative but provisional method employing medium sized test pieces are given in Annex A; this method can also be used for test pieces loaded under varying climates.
NOTE   The duration of load factor is necessary to modify the characteristic strength values obtained in short-term structural tests in order to derive long-term values. The creep factor obtained in the test is used to predict a long-term deflection from the initial elastic deflection.

This European Standard specifies the requirements for flat-pressed or calendar-pressed unfaced particleboards as defined in EN 309.
NOTE 1   This standard is called up in EN 13986 for construction applications. Products specified in this standard are referred to in EN 13986 as resin-bonded particleboards.
The values listed in this standard relate to product properties, but they are not characteristic values to be used in design calculations.
NOTE 2   Such characteristic values (e.g. for use in design calculation in EN 1995-1-1) are given either in EN 12369-1 or derived by testing according to EN 789, EN 1058 and ENV 1156.
Additional information on supplementary properties for certain applications is also given.
NOTE 3   Particleboards in accordance with this standard may be referred to as P1 to P7-boards.
Boards of type P4 to P7 are intended for use in design and construction of load-bearing or stiffening building elements, e.g. walls, flooring, roofing and I-beams (see EN 1995-1-1 and/or performance standards).
This standard does not apply to extruded particleboards and flaxboards, which are standardised in EN 14755 and EN 15197 respectively.

This European Standard specifies the requirements for flat-pressed or calendar-pressed unfaced particleboards as defined in EN 309.
NOTE 1   This standard is called up in EN 13986 for construction applications. Products specified in this standard are referred to in EN 13986 as resin-bonded particleboards.
The values listed in this standard relate to product properties, but they are not characteristic values to be used in design calculations.
NOTE 2   Such characteristic values (e.g. for use in design calculation in EN 1995-1-1) are given either in EN 12369-1 or derived by testing according to EN 789, EN 1058 and ENV 1156.
Additional information on supplementary properties for certain applications is also given.
NOTE 3   Particleboards in accordance with this standard may be referred to as P1 to P7-boards.
Boards of type P4 to P7 are intended for use in design and construction of load-bearing or stiffening building elements, e.g. walls, flooring, roofing and I-beams (see EN 1995-1-1 and/or performance standards).
This standard does not apply to extruded particleboards and flaxboards, which are standardised in EN 14755 and EN 15197 respectively.

This European Standard for cement-bonded particleboards specifies the requirements for particleboards bonded with Ordinary Portland Cement (OPC) for use in dry, humid ) and external ) conditions. Additional information on supplementary properties for certain applications is also given.
NOTE 1   Boards made with cement other than OPC may comply with this Standard if test values are declared according to EN 13986. However, further parts of EN 634 may be developed in the future to cover other types of cement or other materials.
NOTE 2   Cement-bonded particleboard does not contain any asbestos fibre.

This European Standard for cement-bonded particleboards specifies the requirements for particleboards bonded with Ordinary Portland Cement (OPC) for use in dry, humid ) and external ) conditions. Additional information on supplementary properties for certain applications is also given.
NOTE 1   Boards made with cement other than OPC may comply with this Standard if test values are declared according to EN 13986. However, further parts of EN 634 may be developed in the future to cover other types of cement or other materials.
NOTE 2   Cement-bonded particleboard does not contain any asbestos fibre.

This Technical Specification specifies small-scale test methods for estimating the following mechanical properties of wood-based panels:
-   indicative planar shear strength (sometimes referred to as block shear);
-   indicative panel shear strength;
-   indicative strength and modulus of elasticity in tension in the plane of the panel;
-   indicative strength in compression in the plane of the panel.
Reference should be made to EN 310 for bending properties. For plywood, EN 314 1 may also be used as an indicator of planar shear strength.
These test methods are intended for indicative purposes only and should not be used as a means of determining structural design values. They may not be suitable for all panel types. They may be used as a means of supporting quality control procedures for structural panels, if correlations with EN 789 test results can be established (CEN Technical Report in preparation).

This European Standard applies to Oriented Strand Boards (OSB). It defines terms, establishes a
classification and specifies requirements.
The values listed in this European Standard relate to product properties but they are not characteristic values to be used in design calculations.
NOTE   Test methods for determination of mechanical properties for structural purposes are given in EN 789.
Determination of characteristic values of mechanical properties and density for structural purposes is given in EN 1058. Design characteristic values for OSB are given in EN 12369-1.
Information on supplementary properties is given in Annex C.

This European Standard applies to Oriented Strand Boards (OSB). It defines terms, establishes a
classification and specifies requirements.
The values listed in this European Standard relate to product properties but they are not characteristic values to be used in design calculations.
NOTE   Test methods for determination of mechanical properties for structural purposes are given in EN 789.
Determination of characteristic values of mechanical properties and density for structural purposes is given in EN 1058. Design characteristic values for OSB are given in EN 12369-1.
Information on supplementary properties is given in Annex C.

This European Standard specifies the requirements for non load-bearing extruded particleboards for use in dry conditions.
NOTE   Dry conditions are defined in terms of service class 1 of EN 1995-1-1 which is characterized by a moisture content in the material corresponding to a temperature of 20°C and a relative humidity of the surrounding air only exceeding 65% for a few weeks per year. Boards of this type are only suitable in biological hazard class 1 of EN 335-3.

TC - Modification to Table 3

This European Standard specifies the requirements for non load-bearing extruded particleboards for use in dry conditions.
NOTE   Dry conditions are defined in terms of service class 1 of EN 1995-1-1 which is characterized by a moisture content in the material corresponding to a temperature of 20°C and a relative humidity of the surrounding air only exceeding 65% for a few weeks per year. Boards of this type are only suitable in biological hazard class 1 of EN 335-3.

TC - Modification to Table 3

This Technical Specification specifies small-scale test methods for estimating the following mechanical properties of wood-based panels:
-   indicative planar shear strength (sometimes referred to as block shear);
-   indicative panel shear strength;
-   indicative strength and modulus of elasticity in tension in the plane of the panel;
-   indicative strength in compression in the plane of the panel.
Reference should be made to EN 310 for bending properties. For plywood, EN 314 1 may also be used as an indicator of planar shear strength.
These test methods are intended for indicative purposes only and should not be used as a means of determining structural design values. They may not be suitable for all panel types. They may be used as a means of supporting quality control procedures for structural panels, if correlations with EN 789 test results can be established (CEN Technical Report in preparation).

This standard specifies test methods for determining some mechanical properties of commercial wood-based panel products for use in load-bearing timber structures. These properties are intended for the calculation of characteristic values for use in obtaining material design values. For each type and grade of panel product, as defined for example in an EN wood based panel standard, it is necessary to determine characteristic values of mechanical properties to enable it to be used for structural purposes.

This European Standard specifies a chamber method with three options of test chambers for the determination of the formaldehyde emission from wood-based panels in terms of the steady-state concentration in a climate chamber under defined conditions, which relate to typical conditions in real-life. This chamber method can also be applied to the estimation of formaldehyde concentrations under various conditions in practice, by the use of mathematical models.

This standard specifies test methods for determining some mechanical properties of commercial wood-based panel products for use in load-bearing timber structures. These properties are intended for the calculation of characteristic values for use in obtaining material design values. For each type and grade of panel product, as defined for example in an EN wood based panel standard, it is necessary to determine characteristic values of mechanical properties to enable it to be used for structural purposes.

This European Standard specifies a chamber method with three options of test chambers for the determination of the formaldehyde emission from wood-based panels in terms of the steady-state concentration in a climate chamber under defined conditions, which relate to typical conditions in real-life. This chamber method can also be applied to the estimation of formaldehyde concentrations under various conditions in practice, by the use of mathematical models.

This European Standard specifies the requirements for medium boards according to EN 316.  The values listed in this standard relate to product properties but they are not characteristic values to be used in design calculations.

This European Standard specifies the requirements for hardboards as defined in EN 316.  The values listed in this standard relate to product properties but they are not characteristic values to be used in design calculation.

This European Standard specifies the requirements for medium boards according to EN 316.  The values listed in this standard relate to product properties but they are not characteristic values to be used in design calculations.

This European Standard specifies the requirements for hardboards as defined in EN 316.  The values listed in this standard relate to product properties but they are not characteristic values to be used in design calculation.

This European Standard specifies the requirements for some properties which are common for all uncoated fibreboard types according to EN 316.

This European Standard specifies the requirements for some properties which are common for all uncoated fibreboard types according to EN 316.

This standard specifies test methods for determining the performance of structural floor decking subjected to: - specified concentrated static load (due e.g. to imposed action from persons, furniture and equipment) and - specified impact load (produced e.g. by human motion). The decking considered is constructed of boards, laminated boards or wood based panel products supported on timber joists.

This standard specifies test methods for determining the performance of structural floor decking subjected to: - specified concentrated static load (due e.g. to imposed action from persons, furniture and equipment) and - specified impact load (produced e.g. by human motion). The decking considered is constructed of boards, laminated boards or wood based panel products supported on timber joists.