Standards by Category
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Design: EuroCode 5
EuroCode 5 (BS) EN 1995-1-1:2004+A2:2014
This is the core standard for designing timber structures, but each country has its own national annexes giving individual requirements. It also includes values for modification factors (kmod and kdef) which are specific to LVL
Harmonised/Designated Standards
(BS) EN 13986:2004 +A1:2015
As the overall standard for wood-based products for construction, it applies to all applications. See separate listings for specific characteristics
(BS) EN 14374:2004
This specifies the requirements for LVL in structural applications, including the tests to be used and methods for conformity evaluation
Product Standards
(BS) EN 14279:2004+A1:2009
Laminated Veneer Lumber (LVL) – Definitions, classification and specifications
(BS) EN 300:2006
The core product standard for OSB providing definitions, classification and specification
(BS) EN 636:2012+A1:2015
The core plywood standard – for general purpose load-bearing applications in all conditions, with a classification for bending properties
Sustainability
(BS) EN 15804:2012+A2:2019
This is relevant to all structural applications – the most important environmental standard, providing core rules for creating an Environmental Product Declaration (EPD)
Engineering values
(BS) EN 14272:2011
(BS) EN 14272 : 2011
Plywood – Calculation method for some mechanical properties
(BS) EN 1195:1998
Specifies two aspects for floor decking: how to determine the strength and stiffness under a point load and separately impact resistance. See also (BS) EN 12871
(BS) EN 12871:2013
Performance characteristics for load-bearing in floors, walls and roofs – specifying a method for determining the performance characteristics through type testing
(BS) EN 12369-2:2011
Provides information on the characteristic values for the use of plywood in structural design
(BS) EN 1156:2013
This standard specifies how to determine duration of load and creep factors. Use to determine mechanical durability or take the appropriate modification factors from (BS) EN 1995-1-1
(BS) EN 1058:2009
This covers specific engineering values for design ie determining the characteristic five percentile values for mechanical properties and 50 percentile values for physical properties from test data
Dimensions
(BS) EN 318:2002
(BS) EN 318 : 2002
Wood-based panels – Determination of dimensional changes associated with changes in relative humidity
Moisture
(BS) EN 321:2002
Specifies how to determine the moisture resistance under cyclic test conditions for wood-based panels
(BS) EN 1087-1:1995
For a boil test, (BS) EN 1087-1 provides a test method for evaluating OSB bond quality
Density
Sampling and Quality Control
(BS) EN 326-2:2010+A1:2014
Methods for internal initial type testing and factory production control
(BS) EN 326-1:1994
This covers rules for test piece sampling & cutting and how to record, express and present test results. For determining bond quality in plywood and internal bond for OSB
Bond Quality
(BS) EN 314-2:1993
Specifies the requirements for bonding classes of veneer plywood according to their end uses. Also useful for LVL
Durability
(BS) EN 350:2016
Testing and classification of the durability to biological agents of wood and wood-based materials
(BS) DDCEN/TS 1099 : 2007
Plywood: biological durability – guidance for the assessment of plywood for use in different use classes
Sound
Formaldehyde release
(BS) EN ISO 12460-5:2015
Guidance for all products to determine any formaldehyde release by the extraction (or perforator) method. Refer also to (BS) EN 717-1 & -2 for plywood and LVL
(BS) EN 717-1:2004
(BS) EN 717-1 specifies how to determine formaldehyde emission by the chamber method
(BS) EN ISO 12460-3:2020
How to determine formaldehyde release by the gas analysis method (see part 3 in standard. For plywood and LVL, also refer to (BS) EN 717-2:1994
(BS) EN 717-2:1994
Specifies a method for determining formaldehyde emission by the gas analysis method
Product Appearance
(BS) EN 635-5:1999
Part of a series relating the surface appearance of plywood. This sets down the methods for measuring & expressing characteristics & defects
(BS) EN 635-3:1995
Part of a series, this gives the classification by surface appearance for softwood plywood. Does not apply to overlaid panels
(BS) EN 635-1:1995
This part of the series on surface appearance sets down five appearance classes – E, I, II, III and IV. This is based on the number and extent of certain natural characteristics of wood and manufacturing defects. Also see (BS) EN 635-3 and (BS) EN 635-5
Air Permeability
(BS) EN 12114:2000
(BS) EN 12114 determination of and how to express the air permeability coefficient
Thermal Conductivity
(BS) EN 12664:2001
This provides a testing method for determining the thermal performance of plywood, OSB and LVL
Water Vapour Permeability
(BS) EN ISO 12572:2001
Specifies how to determine water vapour resistance and water vapour transmission properties by the cup method
Miscellaneous
Embedment Strength
(BS) EN 383:2007
Optional standard to consider for determining the embedment strength of fasteners
Common Technical Symbols
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