SIST 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: Not Published
• Public Enquiry End Date: 16-Jul-2025
• ICS: 79.080 - Semi-manufactures of timber
• Technical Committee: LLZ - Les, lesni izdelki in zaščita lesa
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 30-Jul-2026
• Due Date: 04-Oct-2026
• Ref Project: EN 14519:2026 - Solid softwood panelling and cladding - Machined profiles with tongue and groove

• Revises: SIST EN 14519:2006 - Solid softwood panelling and cladding - Machined profiles with tongue and groove
• Effective Date: 19-Jan-2023

Overview

SIST EN 14519:2026 specifies the characteristics of solid softwood panelling and cladding products featuring machined tongue and groove profiles. Applicable to both interior and exterior applications, this standard provides a uniform reference for products manufactured from softwoods, including treated, untreated, and surface-treated materials. It also addresses products made from thermally or chemically modified wood, as well as finger-jointed profiles. Notably, the standard does not cover specific treatment, coating, or modification processes. For regulatory requirements such as durability, fire performance, and CE-marking, EN 14915 should be consulted.

Key Topics

• Scope of Products: Encompasses solid softwood panelling and cladding machined with tongue and groove joints for both indoor and outdoor use.
• Material Types: Covers untreated, preservative-treated, thermally modified, chemically modified, and finger-jointed softwood products.
• Grading and Quality Classes: Specifies grading criteria for different softwood species and distinguishes between grading classes for non-maritime and maritime pine. Allows for “free grade” classification as defined by manufacturers.
• Moisture Content: Establishes recommended moisture levels for interior and exterior uses, with tolerance requirements and test methods.
• Geometric and Surface Characteristics: Defines minimum thickness, width, length, machining tolerances, and surface finish requirements, including planed and alternative surface treatments.
• Marking and Identification: Details mandatory marking information to ensure traceability and suitability for intended application.

Applications

Solid softwood panelling and cladding manufactured to SIST EN 14519:2026 are widely used in:

• Residential and Commercial Interiors: For decorative wall and ceiling panelling, offering both aesthetic and functional benefits.
• Exterior Facades: Providing weather-resistant cladding solutions with enhanced durability when treated or modified.
• Renovation and Restoration Projects: Ensuring compliance with modern standards while respecting traditional woodwork aesthetics.
• Industrial and Public Buildings: As non-structural timber elements requiring specified performance and appearance.
• Specialty Uses: Including thermally or chemically modified profiles for increased durability and finger-jointed products for enhanced dimensional stability.

The standard’s focus on various wood treatments broadens suitability across environments with different exposure risks. Furthermore, its clear marking and specification requirements assist in the straightforward selection and procurement of wood panelling and cladding products in line with project needs.

Related Standards

For a comprehensive approach to softwood panelling and cladding, reference the following related standards:

• EN 14915: Solid wood panelling and cladding - Characteristics, requirements and marking (essential for regulatory requirements, CE-marking, durability, fire performance).
• EN 844: Terminology for round and sawn timber.
• EN 1309-1/3: Methods for dimension measurement and biological degradation features in sawn timber.
• EN 13183 (Parts 1-3): Methods for determining and estimating moisture content in sawn timber.
• EN 13647: Determination of geometrical characteristics for wood flooring and cladding.
• EN 13756: Wood flooring and parquet terminology.
• EN 13307-1: Requirements for finger-jointed timber blanks and semi-finished profiles.
• EN 13556: Nomenclature of timbers used in Europe.
• CEN/TS 12169: Criteria for assessment of conformity of sawn timber lots.

Practical Value

By complying with SIST EN 14519:2026, manufacturers, specifiers, and users benefit from:

• Assured Product Quality: Defined grading, dimensional tolerances, and moisture requirements improve consistency and performance.
• Clear Communication: Standardized marking supports correct product selection and application.
• Regulatory Readiness: Fulfilling prerequisites for CE-marking and meeting project-specific regulations through reference to harmonized standards.
• Versatile Use: Applicability to a wide range of interior and exterior construction and design projects.

Adhering to this standard ensures products meet European market expectations for solid softwood panelling and cladding with tongue and groove profiles.

SLOVENSKI STANDARD
oSIST prEN 14519:2025
01-julij-2025
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: prEN 14519
ICS:
79.080 Polizdelki iz lesa Semi-manufactures of timber
oSIST prEN 14519:2025 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

oSIST prEN 14519:2025
oSIST prEN 14519:2025
DRAFT
EUROPEAN STANDARD
prEN 14519
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2025
ICS 79.080 Will supersede 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 draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 175.
If this draft becomes a European Standard, 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.

This draft European Standard was established by CEN 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.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2025 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 14519:2025 E
worldwide for CEN national Members.

oSIST prEN 14519:2025
prEN 14519:2025 (E)
Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 5
4 Symbols and abbreviations . 5
5 Requirements . 5
5.1 General. 5
5.2 Grading . 6
5.2.1 General. 6
5.2.2 Grading classes . 6
5.2.3 Free grade . 10
5.3 Moisture content . 10
5.4 Geometrical characteristics . 10
5.4.1 General. 10
5.4.2 Profiles . 10
5.4.3 Dimensions and tolerances . 10
5.4.4 Surface machining . 12
6 Sampling . 12
7 Technical specifications and marking . 12
Annex A (normative) Requirements for the classification of a free grade . 14
Bibliography . 15

oSIST prEN 14519:2025
prEN 14519:2025 (E)
European foreword
This document (prEN 14519:2025) has been prepared by Technical Committee CEN/TC 175 “Round and
sawn timber”, the secretariat of which is held by AFNOR.
This document is currently submitted to the CEN Enquiry.
This document will supersede 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 wood flooring (including
parquet).
oSIST prEN 14519:2025
prEN 14519:2025 (E)
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, 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 1309-1:1997, Round and sawn timber - Method of measurement of dimensions - Part 1: Sawn timber
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 13647, Wood flooring and wood panelling and cladding - Determination of geometrical characteristics
EN 13756, Wood flooring and parquet - Terminology
oSIST prEN 14519:2025
prEN 14519:2025 (E)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 13756, EN 844 and
EN 1309-1:1997 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 (hit or missed)
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 the manufacturer states otherwise.
Finger jointing according to EN 13307-1 is permitted if agreed upon and specified by the manufacturer.
NOTE Regarding the bonding and glue type other standards and regulations can apply.
oSIST prEN 14519:2025
prEN 14519:2025 (E)
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 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 by the manufacturer.
Table 1 — Grading classes of softwoods (except maritime pine)
a b,
Grade A Grade B
Features ,
Permitted:
— black pin knots up to 5 mm if not in
clusters;
— sound intergrown knots up to 10 %
of width of the board + 30 mm;
— partially intergrown knots,
Permitted:
barkringed knots, splay knots and
— black pin knots up to 5 mm;
dead knots (not loose);
— sound intergrown knots, partially
Spruce/fir and larch: up to 10 % of
intergrown knots, barkringed knots,
width of the board + 15 mm
splay knots, and dead
...