M/112 - CPD: Structural timber prod.

This document sets out requirements regarding the performance of characteristics of the following types of cross laminated timber to be used in buildings and bridges:
-   type 1: Straight or curved cross laminated timber comprising only timber layers but no large finger joints;
-   type 2: Straight cross laminated timber comprising only timber layers and large finger joints;
-   type 3: Straight cross laminated timber comprising timber and wood-based panel layers but no large finger joints.
It also lays down procedures for assessment and verification of constancy of performance (AVPC) of characteristics and specifies marking and labelling of cross laminated timber.
This document covers cross laminated timber of all three types of cross laminated timber:
-   manufactured according to this standard, which sets up provisions for:
-   boundary conditions during manufacture of cross laminated timber;
-   moisture content and temperature of timber to be bonded;
-   production of finger joints and bonds between layers;
-   to be used in service class 1 or 2 according to EN 1995 1 1;
-   made of coniferous species and poplar listed in this standard;
-   which may be made of layers made of different species having similar properties;
-   bonded with phenolic or aminoplastic or moisture curing one-component polyurethane or emulsion polymer isocyanate adhesives of adhesive type I according to the respective standard;
-   built up of at least three orthogonally bonded layers (at least two of them timber layers);
-   which may have, depending on the number of layers, adjacent layers bonded parallel to the grain;
-   made of timber layers which are made of strength graded timber according to EN 14081 1;
-   made of timber layers having nominal thicknesses between 6 mm (including) and 60 mm (including) depending on the layup;
-   made of timber layers
-   which may comprise non-structural edge bonds; and
-   have a mean gap width of less than or equal to 0,6 mm and a 90th percentile of the gap width of 2 mm;
-   having nominal overall thicknesses up to 500 mm.
Additional provisions of this document apply for straight cross laminated timber comprising only timber layers and comprising large finger joints (type 2):
-   made from cross laminated timber pieces having the same cross-section and layup;
-   made from cross laminated timber pieces having nominal cross-sectional thicknesses from 51 mm (including) up to 345 mm (including) and nominal minimum thicknesses of the outer layers not less than 17 mm (including).
-   made from cross laminated timber pieces solely comprising timber layers;
-   made from plane cross laminated timber pieces;
-   with parallel x-axes of the jointed components;
-   with finger joints having a finger length of at least 45 mm and fingers which are visible at the two narrow sides of the components;
-   bonded with phenolic or aminoplastic or moisture curing one-component polyurethane adhesives of adhesive type I according to the respective standard.
Additional provisions of this document apply for straight cross laminated timber comprising timber and wood-based panel layers but no large finger joints (type 3):
-   made of structural wood-based panels specified in this European standard;
-   made of one panel per layer and;
-   having thicknesses between 6 mm (including) and 45 mm (including);
This document applies to cross laminated timber untreated or treated against biological attack.
This document  does not cover:
-   cross laminated timber treated with fire retardants;
-   cross laminated timber which is produced from re-used timber or wood-based panels comprising re-used timber.

This document specifies test methods for the determination of the suitability of two component epoxy and two component polyurethane adhesives for glued-in steel rods in glued laminated timber (GLT) and glued solid timber (GST) according to EN 14080, cross laminated timber (CLT) according to EN 16351 and laminated veneer lumber (LVL) according to EN 14374.
It specifies performance requirements and the determination of characteristic bond strength values for such adhesives for the prefabrication under factory or factory-like conditions of load-bearing timber-steel rod joints only. This document does not cover the performance of adhesives for on-site gluing (except for factory-like conditions).
Several provisions of this document can apply to repair and upgrading of existing timber structures including (cracked/fissured) solid wood beams. For adhesives for on-site repair or applications with solid timber additional provisions need to be taken into account. Such provisions are not part of this document.
This document also covers glued–in rods in surface treated wood. It does not cover glued-in rods in modified and stabilized wood with considerably reduced swelling and shrinkage properties, e.g. such as acetylated wood, heat treated wood, polymer impregnated wood and preservative treated wood.
The joints are intended for load-bearing timber structures subjected to temperatures up to 60 °C over a longer time in service classes 1 and 2 which are loaded predominantly static or quasi static according to EN 1990 and EN 1991-1-1.
A design procedure for glued-in rods for timber structures is given in an informative Annex A.

This European standard specifies test methods for determination of the suitability of two component epoxy and polyurethane adhesives for on-site repair of cracked timber structures. The standard specifies minimum requirements on bond strength and integrity. The standard provides minimum on-site repair provisions and specifies test and minimum strength requirements with drill cores from on-site repaired timber structures for verification of bond strength and integrity.

This European Standard specifies requirements additional to those given in EN 14081-1 for factory production control of machine graded structural timber with rectangular cross-sections shaped by sawing, planing or other methods, and having deviations from the target sizes corresponding to EN 336.

This European Standard specifies requirements, additional to those in EN 14081-1, for type testing of machine graded structural timber with rectangular cross-sections shaped by sawing, planing or other methods, and having deviations from the target sizes corresponding to EN 336. This includes requirements for strength grading machines.

This document specifies requirements, additional to those of EN 14081-1, for type testing of machine graded structural timber with rectangular cross-sections shaped by sawing, planning or other methods, and having deviations from the target sizes corresponding to EN 336. This includes requirements for strength grading machines.

This European Standard specifies requirements additional to those given in EN 14081-1 for factory production control of machine graded structural timber with rectangular cross-sections shaped by sawing, planing or other methods, and having deviations from the target sizes corresponding to EN 336.

This European Standard gives guidance on methods for determining and classifying the durability of wood against biological wood-destroying agents, its permeability to water and its performance in use.
The methods can be applied either to individual wood species, batches of wood and wood-based materials.
This standard is not intended to test the efficacy of biocides.
The wood-destroying agents considered under in this standard are:
-   wood-destroying fungi (basidiomycete and soft-rot fungi);
-   beetles capable of attacking dry wood;
-   termites;
-   marine organisms.
Data on the biological durability of selected wood species considered of economic importance in European countries are presented in Annex B (informative), which also provides information relating to their geographical origin, density, sapwood width and treatability.
NOTE 1   The guidance on the durability classification appropriate for a particular use class is given in the EN 460 standard.
NOTE 2   Annex C (informative) provides a methodology allowing the classification of wood treatability
Wood durability is an important factor that influences service life of a wood product. This standard provides input to service life prediction of wood and wood-based products as it ranks durability against wood-destroying organisms of various wood species thereby allowing species of appropriate durability to be selected for a particular use class. It shall however be emphasized that the biological durability rating of wood species given in Annex B cannot be regarded as any guarantee of performance in service.
NOTE 3   There are many other factors influencing service life of a wood product, such as principles of good design, use conditions, climate, maintenance (…) and should be taken into consideration.

This European Standard gives guidance on methods for determining and classifying the durability of wood and wood-based materials against biological wood-destroying agents.
The methods can be applied either to individual wood species, batches of wood and processed wood-based materials, including heat-treated, preservative-treated wood and modified wood. However, this standard is not intended to replace testing of the efficacy of biocides.
The wood-destroying agents considered in this standard are:
—   wood-decay fungi (basidiomycete and soft-rot fungi);
—   beetles capable of attacking dry wood;
—   termites;
—   marine organisms capable of attacking wood in service.
Data on the biological durability of selected wood species considered of economic importance in European countries are presented in Annex B (informative), which also provides information relating to their geographical origin, density, sapwood width and treatability.
NOTE   Treatability, durability to disfiguring fungi, permeability to water and performance in use of wood and wood-based materials are also important issues. However, because standardized methods aiming to assess and classify these factors do not exist and/or have not been extensively experienced yet, preliminary guidance is given in Annex C (informative) for the classification of wood treatability with aqueous wood preservatives, Annex D (informative) for the classification of the permeability to water, Annex E (informative) for the durability to disfiguring fungi, and Annex F (informative) for the classification of performance.

EN 326-2+A1 specifies methods for internal initial type testing (ITT) and internal factory production control (FPC) as well as external control of wood-based panels for their compliance with EN 13986 and other relevant product specifications. However, it may also apply, at the option of the manufacturer, to wood-based panels applied for non-construction purposes. This European Standard is not applicable for the assessment of compliance with specifications of panels comprised in consignments. In such cases, EN 326-3 applies. For internal factory production control, if required, methods for the assessment of conformity of batches and of production over longer periods are given. For external control, if required, methods for the initial inspection of a factory and initial type testing of a product, and for the surveillance of the factory production control, are given. In the factory production control small test pieces are used. The statistics of evaluation is based on normal distribution.

This European Standard specifies methods for internal initial type testing (ITT) and internal factory production control (FPC) as well as external control of wood-based panels for their compliance with EN 13986 and other relevant product specifications. However, it may also apply, at the option of the manufacturer, to wood-based panels applied for non-construction purposes.
This European Standard is not applicable for the assessment of compliance with specifications of panels comprised in consignments. In such cases, EN 326-3 applies.
For internal factory production control, if required, methods for the assessment of conformity of batches and of production over longer periods are given.
For external control, if required, methods for the initial inspection of a factory and initial type testing of a product, and for the surveillance of the factory production control, are given.
In the factory production control small test pieces are used. The statistics of evaluation is based on normal distribution.

EN 15497 sets out provisions regarding the performance characteristics for structural finger jointed timber with rectangular cross section for use in buildings and bridges. The use of structural finger jointed timber may be limited to certain service classes in some member states. It also lays down minimum production provisions and procedures for Assessment and Verification of Constancy of Performance for structural finger jointed timber. This European Standard is applicable to structural finger jointed timber made of coniferous timber species listed in this standard or poplar. Although it may be possible to produce structural finger jointed timber made from specific broadleaf species based on some provisions of this European Standard, this standard is not applicable to these products. This European Standard is only applicable to finger joints between timber sections of the same species. This European Standard does not cover impressed (die-formed) finger joints. This European Standard covers structural finger jointed timber untreated or treated against biological attack. Structural finger jointed timber treated with fire retardants is not covered.

This European Standard sets out provisions regarding the performance characteristics for structural finger jointed timber with rectangular cross section for use in buildings and bridges.
The use of structural finger jointed timber may be limited to certain service classes in some member states.
It also lays down minimum production provisions and procedures for Assessment and Verification of Constancy of Performance for structural finger jointed timber.
This European Standard is applicable to structural finger jointed timber made of coniferous timber species listed in this standard or poplar.
Although it may be possible to produce structural finger jointed timber made from specific broadleaf species based on some provisions of this European Standard, this standard is not applicable to these products.
This European Standard is only applicable to finger joints between timber sections of the same species.
This European Standard does not cover impressed (die-formed) finger joints.
This European Standard covers structural finger jointed timber untreated or treated against biological attack. Structural finger jointed timber treated with fire retardants is not covered.

This European Standard sets the performance requirements of the following glued laminated products: - Glued laminated timber (glulam); - Glued solid timber; - Glulam with large finger joints; - Block glued glulam for use in buildings and bridges. It also lays down minimum production requirements, provisions for evaluation and attestation of conformity and marking of glued laminated products. This European Standard is applicable for glued laminated timber made of coniferous species listed in this standard or poplar consisting of two or more laminations having a thickness from 6 mm up to 45 mm (inclusive). It may be possible to produce glulam made from specific hardwood species based on some provisions of this European Standard. In this case, Annex ZA does not apply. This European Standard is applicable for glued solid timber made of coniferous species listed in this standard or poplar consisting of two to five laminations having a thickness greater than 45 mm and less than or equal to 85 mm. This European Standard is applicable for large finger joints in glued laminated timber with a finger length of at least 45 mm. This European Standard is applicable for block glued glulam having solid rectangular cross sections. This European Standard also gives the requirements for glued laminated products treated against biological attack. Glued laminated products treated with fire retardants are not covered.

This European Standard sets the performance requirements of the following glued laminated products:
-   Glued laminated timber (glulam);
-   Glued solid timber;
-   Glulam with large finger joints;
-   Block glued glulam
for use in buildings and bridges.
It also lays down minimum production requirements, provisions for evaluation and attestation of conformity and marking of glued laminated products.
This European Standard is applicable for glued laminated timber made of coniferous species listed in this standard or poplar consisting of two or more laminations having a thickness from 6 mm up to 45 mm (inclusive).
It may be possible to produce glulam made from specific hardwood species based on some provisions of this European Standard. In this case, Annex ZA does not apply.
This European Standard is applicable for glued solid timber made of coniferous species listed in this standard or poplar consisting of two to five laminations having a thickness greater than 45 mm and less than or equal to 85 mm.
This European Standard is applicable for large finger joints in glued laminated timber with a finger length of at least 45 mm.
This European Standard is applicable for block glued glulam having solid rectangular cross sections.
This European Standard also gives the requirements for glued laminated products treated against biological attack. Glued laminated products treated with fire retardants are not covered.

This European Standard specifies the requirements and test methods for materials, geometry, strength, stiffness and durability ascpects (i.e. corrosion protection) of dowel-type fasteners for use in load bearing timber structures. Only dowel-type fasteners manufactured from steel are covered by this European Standard. For the purpose of this standard, dowel-type fasteners for timber structures are taken to be nails, staples, screws, dowels, and bolts with nuts. Definitions of these items are given in Clause 3. This European Standard specifies also the evaluation of conformity procedures and includes requirements for marking of these products. This European Standard does not cover fasteners treated with fire retardants to improve their fire performance. This European Standard covers fasteners that may be coated for the following purposes: 1. Corrosion protection (e.g. hot dip galvanization, epoxy coating); 2. Lubricants (to facilitate insertion); 3. Withdrawal enhancement and/or collation (adhesive coating).

This European Standard specifies the requirements and test methods for materials, geometry, strength, stiffness and durability ascpects (i.e. corrosion protection) of dowel-type fasteners for use in load bearing timber structures.
Only dowel-type fasteners manufactured from steel are covered by this European Standard. For the purpose of this standard, dowel-type fasteners for timber structures are taken to be nails, staples, screws, dowels, and bolts with nuts.  Definitions of these items are given in Clause 3. This European Standard specifies also the evaluation of conformity procedures and includes requirements for marking of these products.
This European Standard does not cover resin coated dowel-type fasteners and fasterners treated with fire retardants to improve their fire performance. It also does not cover resin coated fasteners.

This European Standard covers requirements for single untreated or preservative treated wood poles for overhead lines under cantilever or compression loading (it does not cover poles used as beams). It covers test methods, determination of characteristic values and methods of specifying durability and sizes. It also establishes principles for visual grading. This European Standard applies to both softwood and hardwood poles. This European Standard specifies the evaluation of conformity requirements and the marking of wood poles.
This standard specifies:
-       the methods of measuring the sizes of solid wood poles for overhead transmission and telecommunication lines and permissible deviations that are taken into account for the acceptance of the poles,
-       the requirements for handling and the characteristics for visual strength grading of softwood and hardwood poles. It also specifies the marking requirements,
-       the methods of test to determine characteristic values for modulus of elasticity and bending strength of any population of wood poles, and moisture content of solid wood poles,
-   the requirements for natural durability and preservative treatment of wood poles.

This European Standard covers requirements for single untreated or preservative treated wood poles for overhead lines under cantilever or compression loading (it does not cover poles used as beams). It covers test methods, determination of characteristic values and methods of specifying durability and sizes. It also establishes principles for visual grading.
This European Standard applies to both softwood and hardwood poles.
This European Standard specifies the evaluation of conformity requirements and the marking of wood poles.
This European Standard does not specify wood poles treated against fire to improve their fire performance.
This European Standard does not quantify the service life that may be expected from a wood pole.
NOTE   The service life of a wood pole depends on its geographical location, the associated climate of its service environment and either the natural durability of the heartwood of the species selected, or the combination between selection of species, preservative type, and requirements of retention and any incised zones.

This European Standard specifies material, product and documentation requirements for prefabricated structural members (e.g. trusses for roofs, walls and floors, frames, composite beams and girders) for use in buildings made from solid structural timber according to EN 14081-1 with or without finger joints assembled with punched metal plate fasteners. This document is valid for trusses with lengths up to 35 m and for other prefabricated structural members with spans up to 12 m. The standard also covers tests and/or calculation methods to carry out the evaluation of conformity, requirements for the marking of these members, and external conditions (service class 3 in accordance with EN 1995-1-1 or use classes 3, 4 and 5 in accordance with EN 335-1). As regards resistance to biological organisms, this standard covers prefabricated structural members manufactured from either untreated timber or timber treated to improve its natural durability. This standard does not cover prefabricated timber structural members intended to be used in constructions under predominantly dynamic loads (e.g. bridges) or for use in unprotected external conditions (i.e. use class 3 in accordance with EN 335-1). Furthermore, it does not cover members treated to improve their fire performance.

On the basis of test results from wood-based panel products for structural purposes, this European Standard 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. Test data should be determined from tests using the test methods outlined in EN 789.

This European Standard specifies material, product and documentation requirements for prefabricated structural members (e.g. trusses for roofs, walls and floors, frames, composite beams and girders) for use in buildings made from solid structural timber according to EN 14081-1 with or without finger joints assembled with punched metal plate fasteners.
The standard also covers tests and/or calculation methods to carry out the evaluation of conformity and requirements for the marking of these members.
As regards resistance to biological organisms, this standard covers prefabricated structural members manufactured from either untreated timber or timber treated to improve its natural durability.
This standard does not cover prefabricated timber structural members intended to be used in constructions under predominantly dynamic loads (e.g. bridges) or for use in unprotected external conditions (i.e. use class 3 in accordance with EN 335-1).
Furthermore, it does not cover members treated to improve their fire performance.

This European Standard specifies requirements and test metods for materials, geometry, strength, stiffness and durability aspects (i.e. corrosion protection) of connectors  for use in load bearing timber structures.
Only connectors manufactured from steel are covered by this European Standard, like shear plates, split ring connectors, tooth plate connectors, punched metal plate fasteners and nailing plates. Definitions of these items are given in Clause 3.
This European Standard specifies also the evaluation of conformity procedures and includes requirements for marking of these products.
This European Standard does not cover connectors treated with fire retardants to improve their fire performance.

On the basis of test results from wood-based panel products for structural purposes, this European Standard 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.
Test data should be determined from tests using the test methods outlined in EN 789.

This European Standard specifies a method for determining the yield moment of dowel type fasteners.

This European Standard specifies general requirements for structural timber that has been treated with preservatives against biological attack. This European Standard also specifies requirements for the evaluation of conformity and marking of preservative treated timber products when they are placed on the market. Treatments which include a biocide are covered by this standard. It does not provide details of which preservative treatments are necessary for a particular type of structural timber product to achieve a required service life, as regional climatic differences and prevalent biological agents would need to be taken into account for that purpose. This European Standard does not cover any subsequent treatment which may be required for structural timber products which have been machined, bored or planed after the CE marking has been applied. This standard does not cover the qualification of preservation products used to treat structural timber.

This European Standard specifies a method for determining the yield moment of dowel type fasteners.

This European Standard specifies general requirements for structural timber that has been treated with preservatives against biological attack.
This European Standard also specifies requirements for the evaluation of conformity and marking of preservative treated timber products when they are placed on the market.
Treatments, which include a biocide, are covered by this standard.
It does not provide details of which preservative treatments are necessary for a particular type of structural timber product to achieve a required service life, as regional climatic differences and prevalent biological agents would need to be taken into account for that purpose.
This European Standard does not cover any subsequent treatment which may be required for structural timber products which have been machined, bored or planed after the CE marking has been applied.
This standard does not cover the qualification of preservation products used to treat structural timber.

This European Standard specifies requirements and test metods for materials, geometry, strength, stiffness and durability aspects (i.e. corrosion protection) of connectors  for use in load bearing timber structures.
Only connectors manufactured from steel are covered by this European Standard, like shear plates, split ring connectors, tooth plate connectors, punched metal plate fasteners and nailing plates. Definitions of these items are given in Clause 3.
This European Standard specifies also the evaluation of conformity procedures and includes requirements for marking of these products.
This European Standard does not cover connectors treated with fire retardants to improve their fire performance.

This part of EN 351 provides guidance on the general procedures used in obtaining samples of preservative-treated wood to determine the penetration and retention of wood preservative.
This part of EN 351 is applicable for the production of preservative-treated solid wood, including glued laminated timber, suitable for use in those service conditions defined by the use classes in EN 335-1. However, the sampling guidance provided within this part of EN 351 may be applied for the subsequent examination of treated wood in service.

This part of EN 351 establishes classification for preservative-treated wood in terms of preservative penetration and gives guidance on a classification of retention. These should be used as a basis for specifying preservative treatments for particular products.
This part of EN 351 provides terminology to be used by the specifier when preparing a preservative treatment specification or product standard. It is not a treatment specification in itself.
This part of EN 351 is applicable to the production of preservative-treated solid wood, including glued laminated timber, suitable for use in those service conditions defined by the use classes in EN 335-1. It does not apply to any subsequent examination of treated wood in service.
This part of EN 351 is applicable to the protection of wood against attack by wood-destroying and wood disfiguring fungi, insects and marine organisms.
This part of EN 351 does not consider other properties of treated wood, for example odour, corrosiveness and compatibility with other materials, nor does it consider any properties from the health, safety and environmental point of view.
This part of EN 351 does not apply to wood treated with formulations that are applied to timber in service to eliminate or control an existing fungal or insect infestation, or to prevent attack by sapstain fungi, or insects in green timber.

This part of EN 351 establishes classification for preservative-treated wood in terms of preservative penetration and gives guidance on a classification of retention. These should be used as a basis for specifying preservative treatments for particular products.
This part of EN 351 provides terminology to be used by the specifier when preparing a preservative treatment specification or product standard. It is not a treatment specification in itself.
This part of EN 351 is applicable to the production of preservative-treated solid wood, including glued laminated timber, suitable for use in those service conditions defined by the use classes in EN 335-1. It does not apply to any subsequent examination of treated wood in service.
This part of EN 351 is applicable to the protection of wood against attack by wood-destroying and wood-disfiguring fungi, insects and marine organisms.
This part of EN 351 does not consider other properties of treated wood, for example odour, corrosiveness and compatibility with other materials, nor does it consider any properties from the health, safety and environmental point of view.
This part of EN 351 does not apply to wood treated with formulations that are applied to timber in service to eliminate or control an existing fungal or insect infestation, or to prevent attack by sapstain fungi, or insects in green timber.

This part of EN 351 provides guidance on the general procedures used in obtaining samples of preservative-treated wood to determine the penetration and retention of wood preservative.
This part of EN 351 is applicable for the production of preservative-treated solid wood, including glued laminated timber, suitable for use in those service conditions defined by the use classes in EN 335-1. However, the sampling guidance provided within this part of EN 351 may be applied for the subsequent examination of treated wood in service.

This document sets out provisions regarding the performance of characteristics of the following Types of cross laminated timber for use in buildings and bridges:
- Type 1: Straight or curved cross laminated timber comprising only timber layers but no large finger joints;
- Type 2: Straight cross laminated timber comprising only timber layers and large finger joints;
- Type 3: Straight cross laminated timber comprising timber and wood-based panel layers but no large finger joints.
This document covers cross laminated timber of all three Types of cross laminated timber:
- manufactured according to this document, which sets up provisions for:
- boundary conditions during manufacture of cross laminated timber;
- moisture content and temperature of timber to be bonded;
- production of finger joints and bonds between layers;
- to be used in service class 1 or 2 according to EN 1995-1-1;
- made of coniferous species and poplar listed in this document;
- which may be made of layers made of different species;
- bonded with phenolic or aminoplastic or moisture curing one-component polyurethane or emulsion polymer isocyanate adhesives of adhesive Type I according to the respective standard;
- made of timber laminations having a nominal width between 40 mm (including) and 300 mm (including);
- built up of at least three orthogonally bonded layers (at least two of them timber layers);
- which may have, depending on the number of layers, adjacent layers bonded parallel to the grain;
- made of timber layers which are made of strength graded timber according to EN 14081-1;
-made of timber layers having nominal thicknesses between 6 mm (including) and 47 mm (including);
- made of timber layers which may comprise edge bonds;
- having nominal overall thicknesses up to 500 mm.
Additional provisions of this document apply for straight cross laminated timber comprising only timber layers and comprising large finger joints (Type 2):
- made from cross laminated timber pieces having the same cross-section and layup;
- made from cross laminated timber pieces having nominal cross-sectional thicknesses from 51 mm (including) up to 345 mm (including) and nominal minimum thicknesses of the outer layers not less than 17 mm (including);
- made from cross laminated timber pieces solely comprising timber layers;
- made from plane cross laminated timber pieces;
- with parallel x-axes of the jointed components;
- with large finger joints having a finger length of at least 45 mm and fingers which are visible at the two narrow sides of the components;
- having large finger joints bonded with phenolic or aminoplastic or moisture curing one-component polyurethane adhesives of adhesive Type I according to the respective standard.
Additional provisions of this document apply for straight cross laminated timber comprising timber and wood-based panel layers but no large finger joints (Type 3):
- made of structural wood-based panels specified in this document;
- made of one panel per layer and;
- having thicknesses between 6 mm (including) and 45 mm (including).
This document applies to cross laminated timber untreated or treated against biological attack.
This document does not cover:
- cross laminated timber treated with fire retardants;
- cross laminated timber which is produced from re-used timber or wood-based panels comprising re-used timber.
It also lays down procedures for assessment and verification of constancy of performance (AVPC) of cross laminated timber.

This document specifies test methods for the determination of the suitability of two component epoxy and two component polyurethane adhesives for glued-in steel rods in glued laminated timber (GLT) and glued solid timber (GST) according to EN 14080, cross laminated timber (CLT) according to EN 16351 and laminated veneer lumber (LVL) according to EN 14374.
NOTE 1 The English term "glued-in rods" has been chosen as the established term instead of "bonded-in rods".
It specifies performance requirements and the determination of characteristic bond strength values for such adhesives for the prefabrication under factory or factory-like conditions of joints between load-bearing timber products and steel rods only. This document does not cover the performance of adhesives for on-site gluing (except for factory-like conditions).
NOTE 2 Factory like conditions provide shelter from direct weathering and dirt, prevent undue movement of the joints during curing of the adhesive and provide temperature and relative humidity conditions and control as in factory production environment.
This document also covers glued-in rods in surface treated wood. It does not cover glued-in rods in modified and stabilized wood with considerably reduced swelling and shrinkage properties, e.g. acetylated wood, heat treated wood, polymer impregnated wood and preservative treated wood.
The joints are intended for load-bearing timber structures in service classes 1 and 2 according to EN 1995-1-1 which are loaded predominantly static or quasi static according to EN 1990 and EN 1991-1-1. The joints are intended for load-bearing timber structures which are not subjected to a prolonged exposure to temperatures over 60 °C.
A design procedure for glued-in rods in glued structural timber products is given in the informative Annex A.
NOTE 3 Several provisions of this document can apply to in situ repair and upgrading of existing timber structures including (cracked/fissured) solid wood beams. For adhesives for glued-in rods used in on-site repair or applications with solid timber additional provisions apply, e.g. related to rheology and site temperature conditions. Such provisions are not part of this document.

This document specifies test methods and requirements for two-component epoxy and polyurethane adhesives for on-site repair of cracks in timber structures made of strength graded structural timber with rectangular cross-section, structural finger-jointed timber, glued solid timber and glued laminated timber made of softwood species by injection of the repair adhesive with glue line thicknesses up to 8 mm. The adhesive can also be used to rehabilitate cracks in the area of joints made by nails, screws, dowel-type fasteners and dowels with threads. The adhesive can also be used to fill gaps between the faces of structural components. This document addresses exclusively adhesives which fulfil the requirements according to Clause 8.
NOTE There is no sufficient experience with adhesives which do not fulfil the requirements in 8.4.4.
This document also covers the repair of surface treated wood. It does not cover the repair of preservative treated wood, modified and stabilized wood with considerably reduced swelling and shrinkage properties, e.g. acetylated wood, heat treated wood and polymer impregnated wood.
The adhesive is intended for the repair of load bearing timber structures not subjected to temperatures more than 60 °C over a longer time in service classes 1 and 2 according to EN 1995-1-1 which are loaded predominantly static or non-fatigue quasi static, see EN 1990 and EN 1991-1-1. A verification of quality and bond line integrity of the on-site repair bonding is given in an informative Annex A.

This document specifies the requirements for laminated veneer lumber for structural applications. The tests to be used, methods to carry out the evaluation of conformity and content of the marking of the product are given.
This document does not cover laminated veneer lumber treated against biological attack or fire.

This document specifies the requirements for laminated veneer lumber for structural applications. The tests to be used, methods to carry out the evaluation of conformity and content of the marking of the product are given.
This document does not cover laminated veneer lumber treated against biological attack or fire.

This standard applies for structural round wood timber other than specified in EN 12509.
This test standard specifies test methods for determining the following properties of structural round timber; the bending strength, modulus of elasticity in bending; the compressive strength parallel to the grain and modulus of elasticity in compression parallel to the grain.
In addition, the determination of dimensions, moisture content and density is specified. The methods apply to debarked round timber.
This standard is not intended for quality-control test purposes.

This standard applies for structural round wood timber other than specified in EN 12509.
This test standard specifies test methods for determining the following properties of structural round timber; the bending strength, modulus of elasticity in bending; the compressive strength parallel to the grain and modulus of elasticity in compression parallel to the grain.
In addition, the determination of dimensions, moisture content and density is specified. The methods apply to debarked round timber.
This standard is not intended for quality-control test purposes.

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.

Applies to joints made with mechanical fasteners used in statically loaded timber structures. Covers the conditioning of test specimens and explains the apparatus to be used for measuring the geometry of the test specimens, their moisture content and other characteristics. Details the loading procedure and specifies the details to be included in the test report.

This standard specifies the general principles to be adopted for static load testing of timber structures or components. It is intended for use where it is necessary to verify by test that a structure or components complies with stated criteria. Relevant parts may be used for proof loading or for the testing of structures in service. This standard is not intended to be used for testing of individual pieces of timber, individual joints or structural scaled models

This standard specifies the test procedures for determining the strength and deformation behaviour of trusses. Note: The tests are based on EN 380.

This European standard gives guidance on the selection of wood species based on their natural durability to attack by wood-destroying organisms for use as solid wood or as glued laminated timber (glulam) in the hazard classes defined in EN 335-1. This standard does not consider the durability characteristics of the glue used in glued laminated timber.

This standard specifies the test procedures for determining the strength and deformation behaviour of trusses. Note: The tests are based on EN 380.

This European standard gives guidance on the selection of wood species based on their natural durability to attack by wood-destroying organisms for use as solid wood or as glued laminated timber (glulam) in the hazard classes defined in EN 335-1. This standard does not consider the durability characteristics of the glue used in glued laminated timber.

This standard specifies the general principles to be adopted for static load testing of timber structures or components. It is intended for use where it is necessary to verify by test that a structure or components complies with stated criteria. Relevant parts may be used for proof loading or for the testing of structures in service. This standard is not intended to be used for testing of individual pieces of timber, individual joints or structural scaled models

Applies to joints made with mechanical fasteners used in statically loaded timber structures. Covers the conditioning of test specimens and explains the apparatus to be used for measuring the geometry of the test specimens, their moisture content and other characteristics. Details the loading procedure and specifies the details to be included in the test report.