EN 14519:2026

• Abstract:

  This document specifies characteristics of solid wood panelling and cladding with tongue and groove machined from softwoods (wood of trees of the botanical group gymnosperms).; Products are intended for interior or exterior use.; This document covers treated, untreated and surface treated products, including those made of thermally and chemically modified wood, as well as finger jointed products.; This document does not cover processes for treatment, surface coating or modification.; NOTE Where further regulatory provisions (e.g. durability, reaction to fire, dangerous substances and generally CE-marking according to CPR) are required, harmonized EN 14915 applies.

• Status: Published
• Publication Date: 21-Jul-2026
• ICS: 79.080 - Semi-manufactures of timber
• Technical Committee: CEN/TC 175 - Round and sawn timber
• Drafting Committee: CEN/TC 175/WG 38 - Specific user requirements - Timber in cladding and panelling
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 22-Jul-2026
• Due Date: 02-Oct-2026
• Completion Date: 22-Jul-2026
• Ref Project: SIST EN 14519:2026 - Solid softwood panelling and cladding - Machined profiles with tongue and groove

• Replaces: EN 14519:2005 - Solid softwood panelling and cladding - Machined profiles with tongue and groove
• Effective Date: 19-Jan-2023
• Refers: EN 13756:2018 - Wood flooring and parquet - Terminology
• Effective Date: 12-Aug-2026
• Refers: EN 13307-1:2006 - Timber blanks and semi-finished profiles for non-structural uses - Part 1: Requirements
• Effective Date: 12-Aug-2026
• Refers: EN 13183-1:2002 - Moisture content of a piece of sawn timber - Part 1: Determination by oven dry method
• Effective Date: 12-Aug-2026
• Refers: EN 1309-3:2018 - Round and sawn timber - Methods of measurements - Part 3: Features and biological degradations
• Effective Date: 12-Aug-2026
• Refers: EN 13183-2:2002 - Moisture content of a piece of sawn timber - Part 2: Estimation by electrical resistance method
• Effective Date: 12-Aug-2026
• Refers: EN 844:2019 - Round and sawn timber - Terminology
• Effective Date: 12-Aug-2026
• Refers: EN 13183-3:2005 - Moisture content of a piece of sawn timber - Part 3: Estimation by capacitance method
• Effective Date: 12-Aug-2026
• Refers: EN 13647:2021 - Wood flooring and wood panelling and cladding - Determination of geometrical characteristics
• Effective Date: 12-Aug-2026

Overview

EN 14519:2026 is a European standard developed by CEN that specifies the characteristics of solid softwood panelling and cladding featuring machined profiles with tongue and groove joints. This standard applies to products made from softwood species, including treated, untreated, surface treated, thermally and chemically modified, as well as finger jointed wood products. It is suitable for both interior and exterior applications, providing guidance on dimensional tolerances, grading, moisture content, and marking. EN 14519:2026 enhances product consistency, improves quality assurance, and supports the use of wood in construction and decorative finishes by providing a clear set of requirements.

Key Topics

• Scope and Applicability

  • Covers solid softwood panelling and cladding elements machined with tongue and groove
  • Applies to both interior and exterior uses
  • Includes treated, untreated, surface treated, thermally/chemically modified, and finger jointed products

• Characteristics and Requirements

  • Outlines grading classes for visual and structural features
  • Defines moisture content requirements for interior (12 ± 2%) and exterior (17 ± 2%) usage at time of production
  • Specifies tolerances for thickness (≥ 9.5 mm, ±0.5 mm), width (≥ 40 or 100 mm, ±1 or ±1.5 mm), and minimum length (750 mm)
  • Details rules for profile types including tongue and groove geometry and finish

• Grading and Quality

  • Provides classification for defects such as knots, fissures, resin pockets, pith, and discoloration
  • Supplements national grade systems by allowing for manufacturer-declared “free grades” with defined criteria
  • Specifies face grading unless otherwise stated

• Marking and Documentation

  • Requires marking of key product information, including:
    • Product and profile type
    • Wood species
    • Grading class or free grade
    • Intended field of use (interior/exterior)
    • Dimensions and moisture content
    • Type of treatment (if applicable)
    • End-matching or finger jointing
  • Refers to additional regulatory requirements found in EN 14915 if CE marking or fire/durability performance is needed

Applications

EN 14519:2026 serves manufacturers, designers, architects, and builders by:

• Product Standardization: Establishes common manufacturing criteria for manufacturers of softwood panelling and cladding, improving consistency across the European market.
• Certification and Compliance: Supports CE marking and compliance with the Construction Products Regulation (CPR) through clear product specification and documentation requirements.
• Design and Construction Guidance: Provides specifiers and construction professionals with a clear reference for product selection, ensuring suitability and durability for interior and exterior installations.
• Quality Control: Helps buyers and project managers assess conformity via visual grades, dimensions, moisture content, and structural features, reducing the risk of defects in finished installations.
• Versatility: Applicable to a range of products, from untreated to highly modified softwood, meeting needs in both decorative and functional cladding and panelling.

Related Standards

For broader regulatory and technical context, the following standards are closely related:

• EN 14915: Solid wood panelling and cladding - Characteristics, requirements and marking (applies for further regulatory provisions such as durability, fire performance, and CE-marking)
• EN 13307-1: Timber blanks and semi-finished profiles for non-structural uses - Requirements
• EN 13556: Nomenclature of timbers used in Europe
• EN 844: Round and sawn timber - Terminology
• EN 13647: Wood flooring and cladding - Determination of geometrical characteristics
• EN 13183 (1–3): Moisture content of sawn timber - Determination methods

By complying with EN 14519:2026, stakeholders in the timber and construction industries ensure high-quality, standardized wood panelling and cladding for a range of environments and applications.

SLOVENSKI STANDARD
01-september-2026
Notranje in zunanje obloge (opaž) iz masivnega lesa iglavcev - Profili z utorom in
peresom
Solid softwood panelling and cladding - Machined profiles with tongue and groove
Innen- und Außenbekleidungen aus massivem Nadelholz - Profilholz mit Nut und Feder
Lambris et bardages en bois massif résineux - Profilés usinés avec rainure et languette
Ta slovenski standard je istoveten z: EN 14519:2026
ICS:
79.080 Polizdelki iz lesa Semi-manufactures of timber
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 14519
EUROPEAN STANDARD
NORME EUROPÉENNE
July 2026
EUROPÄISCHE NORM
ICS 79.080 Supersedes EN 14519:2005
English Version
Solid softwood panelling and cladding - Machined profiles
with tongue and groove
Lambris et bardages en bois massif résineux - Profilés Innen- und Außenbekleidungen aus massivem
usinés avec rainure et languette Nadelholz - Profilholz mit Nut und Feder
This European Standard was approved by CEN on 4 June 2026.

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, Türkiye 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
© 2026 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 14519:2026 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Symbols and abbreviations . 5
5 Requirements . 5
5.1 General. 5
5.2 Grading . 5
5.2.1 General. 5
5.2.2 Grading classes . 5
5.2.3 Free grade . 9
5.3 Moisture content . 9
5.4 Geometrical characteristics . 9
5.4.1 General. 9
5.4.2 Profiles . 9
5.4.3 Dimensions and tolerances . 9
5.4.4 Machining . 11
6 Sampling . 11
7 Technical specifications and marking . 11
Annex A (normative) Requirements for the classification of a free grade . 13
Bibliography . 14

European foreword
This document (EN 14519:2026) has been prepared by Technical Committee CEN/TC 175 “Round and
sawn timber”, the secretariat of which is held by AFNOR.
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 2027, and conflicting national standards shall be
withdrawn at the latest by January 2027.
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 14519:2005.
In comparison with the previous edition, the following technical modifications have been made:
— alignment of the series of product standards: EN 14519, EN 15146 and EN 14951:
— scope, normative references and terms and definitions updated;
— scope opened to all softwood species;
— ranges of moisture content for panelling and cladding were specified more precisely;
— CEN/TS 12169 was referenced for sampling methods instead of Annex C;
— clauses “Technical specifications” and “Marking” were merged and aligned;
— Annex B and Annex C were deleted.
This document is one of a series of standards concerning solid wood panelling and cladding and wood
flooring (including parquet).
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, Türkiye and the United
Kingdom.
1 Scope
This document specifies characteristics of solid wood panelling and cladding with tongue and groove
machined from softwoods (wood of trees of the botanical group gymnosperms).
Products are intended for interior or exterior use.
This document covers treated, untreated and surface treated products, including those made of thermally
and chemically modified wood, as well as finger jointed products.
This document does not cover processes for treatment, surface coating or modification.
NOTE Where further regulatory provisions (e.g. durability, reaction to fire, dangerous substances and generally
CE-marking according to CPR) are required, harmonized EN 14915 applies.
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 844, Round and sawn timber — Terminology
EN 1309-3, Round and sawn timber — Methods of measurements — Part 3: Features and biological
degradations
EN 13183-1, Moisture content of a piece of sawn timber — Part 1: Determination by oven dry method
EN 13183-2, Moisture content of a piece of sawn timber — Part 2: Estimation by electrical resistance method
EN 13183-3, Moisture content of a piece of sawn timber — Part 3: Estimation by capacitance method
EN 13307-1, Timber blanks and semi-finished profiles for non-structural uses — Part 1: Requirements
EN 13647, Wood flooring and wood panelling and cladding — Determination of geometrical characteristics
EN 13756, Wood flooring and parquet — Terminology
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 13756, EN 844 and the following
apply.
ISO and IEC maintain terminology 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
panelling
elements of solid wood mainly for interior use which have been machined on the face and have been
regularised on the back
3.2
cladding
elements of solid wood mainly for exterior use which have been machined on the face and have been
regularised on the back
3.3
face
visible surfaces of an element when installed
Note 1 to entry: This includes edges and chamfers.
3.4
regularised
feature of the surface of an element where some areas of a face remain untouched during
the machining process
3.5
tongue and groove
elements with groove on one edge and a corresponding tongue on the opposite edge (or similar
interlocking profiles)
3.6
end matching
profile at the end of the panelling or cladding including tongue and/or groove
4 Symbols and abbreviations
Symbols and abbreviations used in this document are given in Figure 1, in Table 3 and Table 4.
5 Requirements
5.1 General
The softwood species shall be selected with regard to the appearance expected, the suitability for the
intended purpose and the general characteristics of the species itself. All requirements apply at the time of
production, unless otherwise specified.
Finger jointing according to EN 13307-1 is permitted if specified e.g. by the manufacturer and agreed upon
by the parties.
NOTE Regarding the bonding and glue type other standards and regulations can apply.
5.2 Grading
5.2.1 General
Grading applies to the face only, unless otherwise specified. Machining requirements are covered in 5.4.4
and apply to all grades of all species.
The measurement of features shall be in accordance with EN 1309-3.
The elements may be finished with surface coating. The grading shall be done before coating.
Additionally, to the grading classes given in 5.2.2 different grading classes and quality criteria for panelling
and cladding exist on national and company levels in Europe. Hence, free grades according to 5.2.3 may
also be used.
5.2.2 Grading classes
Grading classes and the features for softwoods (except maritime pine) are given in Table 1. Grading and
the features for maritime pine (Pinus pinaster) are given in Table 2.
A combined grading class, e.g. A/B, is permitted if agreed upon and specified e.g. by the manufacturer.
Table Error! Unknown op code for conditional.1 — Grading classes of softwoods (except maritime
pine)
a b
Features Grade A Grade B
...