Structural Timber - Strength classes - Assignment of visual grades and species

This European Standard lists the visual grades, species and sources of timber, and specifies the strength classes to which they are assigned, as documented in EN 338.
NOTE   For the grades, species and sources included, there is a long history of use and/or satisfactory test data. The sources listed therefore are largely determined by existing commercial practices.

Bauholz für tragende Zwecke - Festigkeitsklassen - Zuordnung von visuellen Sortierklassen und Holzarten

Diese Europäische Norm gibt visuelle Festigkeitsklassen, Holzarten und deren Herkunft an und legt die Festigkeitsklassen nach EN 338 fest, denen sie zugeordnet sind. ANMERKUNG Für die angegebenen Sortierklassen, Holzarten und Herkünfte liegen langjährige praktische Erfahrungen und/oder befriedigende Prüfdaten vor. Die angegebene Herkunft orientiert sich daher weitestgehend an der gewerblichen Praxis.

Bois de structure - Classes de résistance - Affectation des classes visuelles et des essences

La présente Norme Européenne répertorie les classes visuelles de résistance, les essences et les origines
d’approvisionnement de bois et spécifie les classes de résistance, fixées par la norme européenne EN 338,
auxquelles elles se rapportent.
NOTE Pour les classes, essences et origines d'approvisionnement incluses, il existe une grande expérience
d'utilisation et/ou de données d'essai satisfaisantes. Les origines sont donc largement déterminées par la pratique
commerciale existante.

Konstrukcijski les - Trdnostni razredi - Določitev trdnostnih razredov na podlagi vizualnega razvrščanja in vrste lesa

Ta evropski standard navaja trdnostne razrede na podlagi vizualnega razvrščanja, vrste in virov lesa ter določa trdnostne razrede, v katere so razvrščeni, kot so navedeni v standardu EN 338.

General Information

Status
Withdrawn
Publication Date
17-Apr-2012
Withdrawal Date
13-Apr-2025
Technical Committee
CEN/TC 124 - Timber structures
Current Stage
9960 - Withdrawal effective - Withdrawal
Start Date
22-May-2024
Completion Date
14-Apr-2025

Relations

Effective Date
08-Jun-2022
Effective Date
20-Jun-2018
Effective Date
03-Jul-2013
Effective Date
13-Jun-2009

Frequently Asked Questions

EN 1912:2012 is a standard published by the European Committee for Standardization (CEN). Its full title is "Structural Timber - Strength classes - Assignment of visual grades and species". This standard covers: This European Standard lists the visual grades, species and sources of timber, and specifies the strength classes to which they are assigned, as documented in EN 338. NOTE For the grades, species and sources included, there is a long history of use and/or satisfactory test data. The sources listed therefore are largely determined by existing commercial practices.

This European Standard lists the visual grades, species and sources of timber, and specifies the strength classes to which they are assigned, as documented in EN 338. NOTE For the grades, species and sources included, there is a long history of use and/or satisfactory test data. The sources listed therefore are largely determined by existing commercial practices.

EN 1912:2012 is classified under the following ICS (International Classification for Standards) categories: 79.040 - Wood, sawlogs and sawn timber. The ICS classification helps identify the subject area and facilitates finding related standards.

EN 1912:2012 has the following relationships with other standards: It is inter standard links to EN 1912:2004+A4:2010, EN 1912:2024, EN 1912:2012/AC:2013, EN 1912:2004+A3:2009. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

EN 1912:2012 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.

Standards Content (Sample)


2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Bauholz für tragende Zwecke - Festigkeitsklassen - Zuordnung von visuellen Sortierklassen und HolzartenBois de structure - Classes de résistance - Affectation des classes visuelles et des essencesStructural Timber - Strength classes - Assignment of visual grades and species79.040Les, hlodovina in žagan lesWood, sawlogs and sawn timberICS:Ta slovenski standard je istoveten z:EN 1912:2012SIST EN 1912:2012en,fr,de01-oktober-2012SIST EN 1912:2012SLOVENSKI
STANDARDSIST EN 1912:2004+A4:20101DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 1912
April 2012 ICS 79.040 Supersedes EN 1912:2004+A4:2010English Version
Structural Timber - Strength classes - Assignment of visual grades and species
Bois de structure - Classes de résistance - Affectation des classes visuelles et des essences
Bauholz für tragende Zwecke - Festigkeitsklassen - Zuordnung von visuellen Sortierklassen und Holzarten This European Standard was approved by CEN on 9 March 2012.
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, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1912:2012: ESIST EN 1912:2012

Grading standards . 15Bibliography . 17 SIST EN 1912:2012

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 1912:2004+A4:2010. This revised version contains assignments of additional grades and species. According to the CEN/CENELEC Internal Regulations, the national standards organizations 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, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
3.1 timber source geographical area of growth of the trees from which the timber is sawn 3.2 timber species individual species or combination of species 3.3 Nordic countries Denmark, Finland, Iceland, Norway and Sweden 4 Symbols and abbreviations CNE Europe
Central, Northern and Eastern Europe NNE Europe
Northern and North Eastern Europe NC Europe
Northern and Central Europe SIST EN 1912:2012

The timber grades, species and sources listed meet the requirements of the strength classes to which they are assigned in Table 1 and Table 2. Table 3 and Table 4 identify the botanical species for the commercial names listed in Table 1 and Table 2. NOTE 1 Timber graded by machine to EN 14081 may be graded directly to the strength classes and marked accordingly, and is therefore not referenced in this document. NOTE 2 For combinations of species and visual grades which meet the requirements of EN 14081 but are not listed in this standard, the assignment to strength classes can be made according to EN 338 using characteristic values determined in accordance with EN 384. The accepted assignments to strength classes given in this European Standard are based on initial type testing (ITT) and initial type calculation (ITC). The ITT and ITC documentation from the manufacturers has been evaluated by CEN/TC124/WG2/TG1 and the accepted values given in an ITT report. This report is the basis for the attestation of conformity by the Notified Body conducting the certification of the producer’s factory production control (FPC). Further ITT reports may be used as documentation before the information they contain becomes available in an amendment or revision of this European Standard, EN 1912. SIST EN 1912:2012

Strength Class Grading rule publishing country Grade (see Note 2) Species commercial name Source Botanical identification (see Table 3) Comments C35 Germany & Austria
S13, S13K Douglas Fir Germany & Austria 54
C30 France
ST-I
Spruce & Fir
France
1, 22
Germany, Austria & Czech Republic
S13, S13K S13, S13K S13, S13K S13, S13K
Spruce Pine Fir Larch
CNE Europe CNE Europe CNE Europe CNE Europe
22 47 1 15
Italy
S1
Douglas fir
Italy
Maximum width and thickness 100 mm Nordic countries
T3 T3 T3 T3 Pine (Redwood) Spruce (Whitewood) Fir Larch NNE Europe NNE Europe NNE Europe NNE Europe 47 22 1 15
Slovak Republic S0
Spruce Slovak Republic 22
Spain ME1 Laricio pine
Spain 39
The Netherlands T3 T3 T3 T3
Pine (Redwood) Spruce (Whitewood) Fir Larch NNE Europe NNE Europe NNE Europe NNE Europe 47 22 1 15
C27 France ST-I Larch France 15
Germany LS13 Poplar Germany 51
Spain ME1 Scots pine Spain 47
C24
France
ST-II ST-II ST-II ST-II ST-II
Spruce & Fir Douglas Fir Pines Poplar (see note 1) Larch
France France France France France
1, 22 54 39, 44, 47 50 15
Germany & Austria
S10, S10K Douglas Fir
Germany & Austria
Germany, Austria & Czech Republic S10, S10K S10, S10K S10, S10K S10, S10K Spruce Pine Fir Larch CNE Europe CNE Europe CNE Europe CNE Europe 22 47 1 15
Italy
S2 & better S2 & better
Corsican pine Spruce & fir
Italy Italy
39 1, 22
Nordic countries
T2 T2 T2 T2 T2 & better Pine (Redwood) Spruce (Whitewood) Fir Larch Sitka spruce NNE Europe NNE Europe NNE Europe NNE Europe Denmark and Norway
47 22 1 15 28
Slovak Republic SI Spruce Slovak Republic
Slovenia
S10 Spruce & fir
Slovenia 1, 22
Spain
ME1 ME1
Radiata pine Maritime pine
Spain Spain
49 44
Canada
J&P Sel J&P Sel J&P Sel
Douglas fir-Larch Hem-fir S-P-F
USA & Canada USA & Canada USA & Canada
18, 54 2, 4, 5, 7, 8, 62 3, 6, 23, 25, 26, 27, 32, 34, 45
Canada
SLF Sel SLF Sel SLF Sel
Douglas fir-Larch Hem-fir S-P-F
USA & Canada USA & Canada USA & Canada
18, 54 2, 4, 5, 7, 8, 62 3, 6, 23, 25, 26, 27, 32, 34, 45
UK SS SS SS SS SS SS
SS SS SS
Paraná pine Redwood Whitewood Douglas fir-Larch Hem-fir S-P-F
Southern pine Caribbean pitch pine Larch
Brazil CNE Europe CNE Europe USA & Canada USA & Canada USA & Canada
USA Caribbean UK
12 47 1, 22 18, 54 2,
...

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