EN 13228:2011

Wood flooring - Solid wood overlay flooring elements including blocks with an interlocking system

This European Standard specifies the characteristics of solid wood overlay flooring including blocks with an interlocking system for internal use as flooring. It applies to elements.
This standard covers elements with and without surface coating.

Holzfußböden - Massivholz-Overlay-Parkettstäbe einschließlich Parkettblöcke mit einem Verbindungssystem

Diese Europäische Norm legt die Merkmale von Overlay-Massivholzparkett einschließlich Parkettblöcken mit
einem Verbindungssystem für die Verwendung als Fußbodenbelag in Innenräumen fest. Sie bezieht sich auf
Elemente.
Diese Norm gilt für Elemente mit und ohne Oberflächenbehandlung.

Plancher en bois - Eléments de parquets en bois massifs de recouvrement, blocs anglais compris, avec systèmes de guidage

La présente norme européenne définit les caractéristiques des parquets en bois massif de recouvrement, blocs anglais compris, avec un système de guidage pour utilisation en intérieur comme plancher.  Elle s’applique aux éléments.
La présente norme couvre les éléments avec et sans traitement de surface.

Lesene talne obloge - Masivne lesene talne obloge, vključno s kockami za sisteme zapore

Ta evropski standard opredeljuje značilnosti masivnih lesenih talnih oblog, vključno s kockami za sisteme zapore, za notranjo uporabo kot talne obloge. Velja za elemente. Ta standard ne velja za plošče, narejene iz elementov, za katere je v pripravi ločen standard.
Ta standard zajema elemente s površinskim premazom in brez njega.

General Information

• Status: Published
• Publication Date: 17-May-2011
• Withdrawal Date: 29-Nov-2011
• ICS: 79.080 - Semi-manufactures of timber
• Technical Committee: CEN/TC 175 - Round and sawn timber
• Drafting Committee: CEN/TC 175/WG 33 - Specific user requirements - Timber in flooring
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Start Date: 28-Jun-2023
• Completion Date: 14-Apr-2025
• Ref Project: SIST EN 13228:2011 - Wood flooring - Solid wood overlay flooring elements including blocks with an interlocking system

Relations

• Replaces: EN 13228:2002/AC:2007 - Wood flooring - Solid wood overlay flooring elements including blocks with an interlocking system
• Effective Date: 21-May-2011
• Replaces: EN 13228:2002 - Wood flooring - Solid wood overlay flooring elements including blocks with an interlocking system
• Effective Date: 20-Jun-2009

Overview

EN 13228:2011 - "Wood flooring - Solid wood overlay flooring elements including blocks with an interlocking system" is a European Standard published by CEN (May 2011). It specifies the essential characteristics and product requirements for solid wood overlay flooring elements (including blocks) with an interlocking system for internal use. The standard applies to elements with or without surface coatings and replaces EN 13228:2002.

Key topics and technical requirements

EN 13228:2011 defines the technical and visual criteria that manufacturers, specifiers and testers use to assess solid wood overlay flooring. Major topics covered include:

• Scope and definitions
  • Terms such as overlay flooring element, block, interlocking system and thickness above the groove (defined relative to face and profile discontinuities).
• Wood species and appearance
  • A list of commonly used hardwood and softwood species is given (Annex A). Appearance classes are defined (including a normative “Free class” in Annex B) and classification rules for species like oak, ash, beech, birch and chestnut are provided.
• Moisture content
  • Requirements and references for determining moisture content (e.g., oven-dry and electrical methods) are referenced to relevant EN test methods.
• Geometrical characteristics and profiles
  • Profile definitions for interlocking systems, nominal dimensions, machining tolerances and limit deviations (including cup, bow and spring) are specified or referenced.
• Technical properties in service
  • Functional performance expectations during service, renovation and repair guidance, and marking requirements are addressed.
• Referenced test and measurement standards
  • Normative and informative references include EN 13183 (moisture), EN 13647 (geometrical characteristics), EN 1534 (resistance to indentation) and the EN 844 series (timber terminology).

Practical applications

EN 13228:2011 is used to:

• Standardize product specifications for manufacturers of solid wood overlay flooring and block parquet with interlocking joints.
• Provide procurement and product acceptance criteria for buyers, distributors and retailers.
• Guide architects, interior designers and specifiers on acceptable appearance classes and dimensional tolerances for internal flooring projects.
• Support quality control, inspection and conformity assessment during production and at delivery.
• Inform test laboratories by referencing the relevant measurement and test methods for moisture, geometry and mechanical performance.

Who uses this standard

• Flooring manufacturers and product developers
• Timber processors and millwork shops
• Architects, interior designers and specifiers
• Flooring contractors and installers
• Quality inspectors, testing laboratories and procurement professionals

Related standards

• EN 13756 - Wood flooring terminology and definitions
• EN 13183 - Moisture content measurement methods
• EN 13647 - Determination of geometrical characteristics
• EN 1534 - Resistance to indentation (test method)
• EN 844 series - Timber terminology

EN 13228:2011 provides the harmonized technical baseline for specifying and assessing solid wood overlay flooring elements with interlocking systems for internal use.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.]DSRUHHolzfussböden - Massivholz-Overlay-Parkettstäbe einschliesslich mit einem VerbindungssystemPlancher en bois - Lames de parquets en bois massifs de recouvrement, blocs anglais compris, avec systèmes de guidageWood flooring - Solid wood overlay flooring elements including blocks with an interlocking system97.150Netekstilne talne oblogeNon-textile floor coverings79.080Polizdelki iz lesaSemi-manufactures of timberICS:Ta slovenski standard je istoveten z:EN 13228:2011SIST EN 13228:2011en,fr,de01-oktober-2011SIST EN 13228:2011SLOVENSKI
STANDARDSIST EN 13228:2003/AC:2007SIST EN 13228:20031DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 13228
May 2011 ICS 79.080 Supersedes EN 13228:2002English Version
Wood flooring - Solid wood overlay flooring elements including blocks with an interlocking system
Plancher en bois - Eléments de parquets en bois massifs de recouvrement, blocs anglais compris, avec systèmes de guidage
Holzfußböden - Massivholz-Overlay-Parkettstäbe einschließlich Parkettblöcke mit einem VerbindungssystemThis European Standard was approved by CEN on 14 April 2011.
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 and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13228:2011: ESIST EN 13228:2011

Botanical and trade names of the most commonly used species for wood flooring (hardwood and softwood species) . 20 Annex B (normative)
Principles for the classification of the free class . 26 Bibliography . 28
 Test method 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 13647, Wood flooring and wood panelling and cladding  Determination of geometrical characteristics EN 13756:2002, Wood flooring  Terminology SIST EN 13228:2011

[EN 13756:2002] 3.3 interlocking system system of assembly based upon a male and a female profile that does not have a load-bearing function, allowing the positioning of elements during installation
[EN 13756:2002]
3.4 thickness above the groove thickness between the face and any discontinuity such as a change in the profile (excluding chamfering), a groove/glue pocket or a glue line (excluding the glue line of finger-joints)
[EN 13756:2002] 4 Symbols and abbreviations L Length of the face of the element b Width of the face of the element b1 Depth of the female profile b2 Width of the male profile b3 Undercut t Thickness between the face and the back of the element t1 Thickness above the groove t2 Width of the female profile t3 Thickness of the male profile t4 Thickness of the part below the male profile α Angle that an edge makes to a plane normal to adjacent face, in degrees SIST EN 13228:2011

Annex A. 5.2 Appearance
5.2.1 General rules Tables 1 to 6 define the classification relating to appearance rules for the face and for the non-visible parts (back and edges) of an element of the most commonly used species for solid wood flooring as defined in this standard. Features shall be measured according to EN 1310 (knots assessed according to the general method of 4.1 in EN 1310:1997). Bio deterioration is measured according to EN 1311. A classification with three appearance classes is specified, designated {, ∆ and …. A classification named "Free class" is based on the principles laid out in Annex B. To allow for unavoidable classification differences, 3 % of the strips in a batch may be other classes. Any additional strips from other classes are allowed as long as the general impression of the floor is not disturbed. The face shall include all the visible surface of the element. It shall therefore extend to the chamfering1)
if any. The face shall be free from shake and the wood shall be sound. Any continuous glue joint which allows renovation without significantly changing the appearance or the functional characteristics is acceptable.
1) The chamfering is visible when elements are assembled. SIST EN 13228:2011

Features Class { ∆∆∆∆ … Sound sapwood Not permitted Permitted Slight traces permitted Knots
Sound and intergrown
Unsound knots Permitted if: diameter ≤ 2 mm
Not permitted Permitted if: diameter ≤ 5 mm
diameter ≤ 3 mm Permitted if: diameter ≤ 15 mm
diameter ≤ 10 mm Checks Not permitted Permitted up to 15 mm in length All features permitted without limit to size or quantity if these do not impair the strength or the wearing quality of the wood flooring. Bark pockets Not permitted Not permitted Lightning shake Not permitted Not permitted Slope of grain Permitted, no limit Permitted, no limit
Colour variation Slight variation permitted Permitted a
Medullary ray Permitted Permitted Biodeterioration Not permitted Not permitted Not permitted, except blue stain and black holes Non-visible parts All features permitted without limit to size or quantity if these do not impair the strength or the wearing quality of the wood flooring. Sound sapwood is permitted from the back up to the upper part of the male profile of the interlocking system without taking into account the limits set for the face. a Brown oak.
5.2.2.2 Fraxinus excelsior (European ash) and Acer spp. (maple) Rules for European ash and maple are given in Table 2. Table 2 — Classification for Fraxinus excelsior (European ash) and Acer spp. (maple) Face of the element
Features Class { ∆∆∆∆ … Sound sapwood Not applicable Not applicable Not applicable Knots
Sound and intergrown
b < 70 mm
b ≥ 70 mm
Unsound knots Permitted if:
diameter ≤ 2 mm diameter ≤ 3 mm
Not permitted Permitted if:
diameter ≤ 5 mm diameter ≤ 10 mm
diameter ≤ 3 mm Permitted if:
diameter ≤ 15 mm diameter ≤ 30 mm
diameter ≤ 10 mm Checks Not permitted Not permitted Not permitted Bark pockets Not permitted Not permitted Not permitted Lightning shake Not permitted Not permitted Not permitted Slope of grain Permitted, no limit Permitted, no limit Permitted, no limit Colour variation Slight variation permitted. Slight traces of natural discoloration (mineral lines) permitted. Permitted Permitted Stick marks Not permitted Permitted Permitted Biodeterioration Not permitted Not permitted Not permitted, except blue stain and black holes Non-visible parts All features permitted without limit to size or quantity if these do not impair the strength or the wearing quality of the wood flooring.
5.2.2.3 Fagus sylvatica (European beech) Rules for European beech are given in Table 3. Table 3 — Classification for Fagus sylvatica (European beech) Face of the element
Features Class { ∆∆∆∆ … Sound sapwood Not applicable Not applicable Not applicable Knots
Sound and intergrown
b < 70 mm
b ≥ 70 mm
Unsound knots Permitted if:
diameter ≤ 2 mm diameter ≤ 3 mm
Not permitted Permitted if:
diameter ≤ 5 mm diameter ≤ 10 mm
diameter ≤ 3 mm Permitted if:
diameter ≤ 15 mm diameter ≤ 30 mm
diameter ≤ 10 mm Checks Not permitted Not permitted Not permitted Bark pockets Not permitted Not permitted Not permitted Lightning shake Not permitted Not permitted Not permitted Slope of grain Permitted, no limit Permitted, no limit Permitted, no limit Colour variation Slight variation permitted a. Slight traces of natural discoloration
permitted. Permitted Permitted Red heart Not permitted Permitted Permitted Stick marks Not permitted Permitted Permitted Medullary ray Permitted Permitted Permitted Biodeterioration Not permitted Not permitted Not permitted, except blue stain and black holes Non-visible parts All features permitted without limit to size or quantity if these do not impair the strength or the wearing quality of the wood flooring. a Permitted for steamed beech.
5.2.2.4 Betula spp. (birch) Rules for birch are given in Table 4. Table 4 — Classification for Betula spp. (birch) Face of the element
Features Class { ∆∆∆∆ … Sound sapwood Not applicable Not applicable Not applicable Knots
Sound and intergrown
b < 70 mm
b ≥ 70 mm
Unsound knots Permitted if:
diameter ≤ 2 mm diameter ≤ 3 mm
Not permitted Permitted if:
diameter ≤ 5 mm diameter ≤ 10 mm
diameter ≤ 3 mm Permitted if:
diameter ≤ 15 mm diameter ≤ 30 mm
diameter ≤ 10 mm Checks Not permitted Not permitted Not permitted Bark pockets Not permitted Not permitted Not permitted Lightning shake Not permitted Not permitted Not permitted Slope of grain Permitted, no limit Permitted, no limit Permitted, no limit Biodeterioration Not permitted Not permitted Not permitted, except blue stain and black holes Stick marks Not permitted Permitted Permitted Colour variation Slight variation permitted. Slight traces of natural discoloration and mineral lines permitted. Permitted Permitted Non-visible parts All features permitted without limit to size or quantity if these do not impair the strength or the wearing quality of the wood flooring.
5.2.2.5 Castanea sativa spp. (sweet chestnut) Rules for sweet chestnut are given in Table 5. Table 5 — Classification for Castanea sativa spp. (sweet chestnut) Face of the element
Features Class { ∆∆∆∆ … Sound sapwood Not permitted Not permitted Slight traces permitted Knots
Sound and intergrown
b < 70 mm
b ≥ 70 mm
Unsound knots Permitted if:
diameter ≤ 2 mm diameter ≤ 3 mm
diameter ≤ 1 mm Permitted if:
diameter ≤ 5 mm diameter ≤ 10 mm
diameter ≤ 3 mm Permitted if:
diameter ≤ 15 mm diameter ≤ 30 mm
diameter ≤ 10 mm Yellow stain Not permitted 50 % permitted Permitted Checks Not permitted Permitted when the length ≤ width of the element Permitted when the length ≤ 50 % of the length of the element Bark pockets Not permitted Not permitted Permitted Lightning shake Not permitted Not permitted Permitted Slope of grain Permitted, no limit Permitted, no limit Permitted, no limit Colour variation Slight variation permitted. Permitted Permitted
Biodeterioration Not permitted Not permitted Not permitted Non-visible parts All features permitted without limit to size or quantity if these do not impair the stren
...