SIST EN 13226:2003
(Main)Wood flooring - Solid parquet elements with grooves and/or tongues
Wood flooring - Solid parquet elements with grooves and/or tongues
This European Standard specifies the characteristics of solid parquet elements with grooves and/or tongues for internal use as flooring. This standard is not applicable to panels made from elements for which a separate standard ) is in course of preparation.
This standard covers elements with or without surface treatment.
Holzfußböden - Massivholz-Parkettstäbe mit Nut und/oder Feder
Diese Europäische Norm legt die Merkmale von Massivholz-Parkettstäben mit Nut und/oder Feder für die Verwendung als Fußbodenbelag in Innenräumen fest. Diese Norm betrifft nicht aus Stäben zusammengesetzte Parketttafeln; hierfür ist eine separate Norm in Vorbereitung.
Diese Norm gilt für Stäbe mit oder ohne Oberflächenbehandlung.
Planchers en bois - Eléments de parquet massif avec rainures et/ou languettes
La présente Norme européenne définit les caractéristiques des éléments de parquet massif avec rainures et/ou languettes pour utilisation en intérieur comme parquet. La présente norme ne s'applique pas aux panneaux constitués d'éléments pour lesquels une norme spécifique est en cours de préparation.
La présente norme couvre les éléments avec ou sans traitement de surface.
Wood flooring - Solid parquet elements with grooves and/or tongues
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 13226:2003
01-oktober-2003
Wood flooring - Solid parquet elements with grooves and/or tongues
Wood flooring - Solid parquet elements with grooves and/or tongues
Holzfußböden - Massivholz-Parkettstäbe mit Nut und/oder Feder
Planchers en bois - Eléments de parquet massif avec rainures et/ou languettes
Ta slovenski standard je istoveten z: EN 13226:2002
ICS:
79.080 Polizdelki iz lesa Semi-manufactures of timber
97.150 Netekstilne talne obloge Non-textile floor coverings
SIST EN 13226:2003 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 13226:2003
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SIST EN 13226:2003
EUROPEAN STANDARD
EN 13226
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2002
ICS 79.080
English version
Wood flooring - Solid parquet elements with grooves and/or
tongues
Planchers en bois - Eléments de parquet massif avec Holzfußböden - Massivholz-Parkettstäbe mit Nut und/oder
rainures et/ou languettes Feder
This European Standard was approved by CEN on 4 November 2002.
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 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 Management Centre has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,
Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels
© 2002 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 13226:2002 E
worldwide for CEN national Members.
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SIST EN 13226:2003
EN 13226:2002 (E)
Contents
page
Foreword. 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions. 6
4 Symbols and abbreviations . 6
5 Specific product requirements. 7
5.1 Wood species. 7
5.2 Appearance. 7
5.2.1 General rules . 7
5.2.2 Rules for the most commonly used species. 8
5.2.3 Free class. 17
5.2.4 Natural colours. 17
5.3 Moisture content . 17
5.4 Geometrical characteristics. 17
5.4.1 General. 17
5.4.2 Nominal dimensions. 21
5.4.3 Limit deviations. 21
5.4.4 Machining . 22
5.5 Technical specifications and properties . 22
5.5.1 Technical characteristics required when in service . 22
5.5.2 Specific site requirements . 22
5.5.3 Appearance. 23
5.5.4 Renovation and repair. 23
6 Marking . 23
Annex A (informative) Botanical and trade names of the most commonly used species for
wood flooring (hardwood and softwood species). 24
Annex B (normative) Principles for the classification of the free class . 31
Bibliography . 33
2
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SIST EN 13226:2003
EN 13226:2002 (E)
Foreword
This document (EN 13226:2002) 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 June 2003, and conflicting national standards shall be
withdrawn at the latest by June 2003.
In this European Standard the annex A is informative and the annex B is normative.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic,
Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands,
Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom.
3
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SIST EN 13226:2003
EN 13226:2002 (E)
Introduction
This European Standard is one of a series of standards concerning wood flooring and wood panelling
and cladding.
This standard specifies the characteristics of solid parquet elements. It is based upon current
dimensional standards within the industry and other characteristics together with functions which have
been verified by test.
A large amount of knowledge exists about solid parquet elements and values for product characteristics
are attested by long use and experience. It is therefore not necessary to have test results. For new
products technical data will have to be verified by testing.
The appearance of the parquet is mainly influenced by species, classification and the pattern.
4
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SIST EN 13226:2003
EN 13226:2002 (E)
1 Scope
This European Standard specifies the characteristics of solid parquet elements with grooves and/or
tongues for internal use as flooring. This standard is not applicable to panels made from elements for
which a separate standard is in course of preparation.
This standard covers elements with or without surface treatment.
2 Normative references
This European Standard incorporates by dated or undated reference, provisions from other publications.
These normative references are cited at the appropriate places in the text and the publications are listed
hereafter. For dated references, subsequent amendments to or revisions of any of these publications
apply to this European Standard only when incorporated in it by amendment or revision. For undated
references, the latest edition of the publication referred to applies (including amendments).
EN 844-1:1995, Round and sawn timber – Terminology – Part 1: General terms common to round
timber and sawn timber.
EN 844-3:1995, Round and sawn timber – Terminology – Part 3: General terms relating to sawn timber.
EN 844-4:1997, Round and sawn timber – Terminology – Part 4: Terms relating to structure content.
EN 844-6:1997, Round and sawn timber – Terminology - Part 6: Terms relating to dimensions of sawn
timber.
EN 844-7:1997, Round and sawn timber – Terminology - Part 7: Terms relating to anatomical structure
of timber.
EN 844-9:1997, Round and sawn timber – Terminology - Part 9: Terms relating to features of sawn
timber.
EN 844-10:1998, Round and sawn timber – Terminology - Part 10: Terms relating to stain and fungal
attack.
EN 844-11:1998, Round and sawn timber – Terminology - Part 11: Terms relating to degrade by
insects.
EN 844-12:2000, Round and sawn timber – Terminology - Part 12: Additional terms and general index.
EN 1310:1997, Round and sawn timber - Method of measurement of features.
EN 1311, Round and sawn timber - Method of measurement of biological degrade.
EN 1534, Wood and parquet flooring – Determination of resistance to indentation (Brinell) - 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 and parquet flooring and wood panelling and cladding - Measurement of geometrical
characteristics.
EN 13756:2002, Wood flooring – Terminology.
5
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SIST EN 13226:2003
EN 13226:2002 (E)
3 Terms and definitions
For the purposes of this European Standard, the terms and definitions given in EN 844-1:1995, EN
844-3:1995, EN 844-4:1997, EN 844-6:1997, EN 844-7:1997, EN 844-9:1997, EN 844-10:1998, EN
844-11:1998, EN 844-12:2000 and in EN 13756:2002 and the following apply.
3.1
left-handed strip
element having the end tongue on the left when viewed on the face with the edge tongue directed
towards the observer
[EN 13756:2002]
3.2
right-handed strip
element having the end tongue on the right when viewed on the face with the edge tongue directed
towards the observer
[EN 13756:2002]
3.3
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;
b Depth of the groove;
1
b Width of the tongue;
2
b Undercut;
3
t Thickness between the face and the back of the element;
t Thickness above the groove;
1
t Width of the groove;
2
t Thickness of the tongue;
3
t Thickness of the part below the tongue;
4
t Depth of optional glue pocket;
5
a Slope of the upper lip;
aArrow tail;
ß Slope of the under lip.
6
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SIST EN 13226:2003
EN 13226:2002 (E)
5 Specific product requirements
5.1 Wood species
A list of the most commonly used species for parquet elements as described in this standard is given in
Annex A.
5.2 Appearance
5.2.1 General rules
Tables 1 to 9 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). Biodeterioration is measured according to EN 1311.
A classification with three appearance classes is specified, designated , D and .
A classification named "Free class" is based on the principles laid out in Annex B.
1)
The face shall include all the visible surface of the element. It shall therefore extend to the chamfering ,
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.
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5.2.2 Rules for the most commonly used species
5.2.2.1 Quercus spp. (oak)
Rules for oak are given in Table 1.
Table 1 — Classification for Quercus spp. (oak)
Face of the element
Class
Features
D
.
Sound sapwood Not permitted Permitted Slight traces
permitted
Knots Permitted if: Permitted if:
Sound and intergrown
diameter £ 8 mm diameter £ 10 mm
All features
Unsound knots
diameter £ 1 mm diameter £ 5 mm
permitted without
Checks Not permitted Permitted up to 15 mm limit to size or
in length
quantity if these
do not impair the
Bark pockets Not permitted Not permitted
strength or the
wearing quality
Lightning shake Not permitted Not permitted
of the wood
Slope of grain Permitted, no limit Permitted, no limit
flooring.
a
Colour variation Slight variation permitted
Permitted
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 tongue without taking into account the
limits set for the face.
a
Brown oak.
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EN 13226:2002 (E)
Fraxinus excelsior Acer
5.2.2.2 (European ash) and 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
Class
Features
D
Sound sapwood Not applicable Not applicable Not applicable
Knots Permitted if: Permitted if:
Sound and intergrown diameter £ 2 mm diameter £ 10 mm
Unsound knots
diameter £ 1 mm diameter £ 5 mm
All features
Checks Not permitted Permitted up to 15 mm
permitted without
in length
limit to size or
Bark pockets Not permitted Not permitted quantity if these
do not impair the
Lightning shake Not permitted Not permitted
strength or the
wearing quality
Slope of grain Permitted, no limit Permitted, no limit
of the wood
Colour variation Slight variation permitted. Permitted
flooring.
Slight traces of natural
discoloration and mineral
lines permitted.
Stick marks Not 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.
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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
Class
Features
D
Sound sapwood Not applicable Not applicable Not applicable
Knots Permitted if: Permitted if:
Sound and intergrown diameter £ 2 mm diameter £ 10 mm
Unsound knots
diameter £ 1 mm diameter £ 5 mm
Checks Not permitted Permitted up to 15 mm
All features
in length
permitted
without limit to
Bark pockets Not permitted Not permitted
size or quantity
if these do not
Lightning shake Not permitted Not permitted
impair the
Slope of grain Permitted, no limit Permitted, no limit
strength or the
a
wearing quality
Colour variation Slight variation permitted . Permitted
of the wood
Slight traces of natural
flooring.
discoloration permitted.
Red heart Not permitted Permitted
Stick marks Not permitted Permitted
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.
a
Permitted for steamed beech.
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EN 13226:2002 (E)
5.2.2.4 Pinus pinaster (maritime pine)
Rules for maritime pine are given in Table 4.
Table 4 — Classification for Pinus pinaster (maritime pine)
Face of the element
Class
Features
D
Sound sapwood Permitted Permitted Permitted
Knots
Sound and intergrown Permitted if 35 mm knots permitted
b
with slight checks , if
a
diameter £ 2 mm . a
not grouped together .
No limit in diameter.
If grouped together,
Slight torn surface
c
their total area shall
permitted.
not exceed the
representative area of Knots holes or loose
one 35 mm diameter
knots not permitted
knot.
Unsound knots Not permitted Permitted if
diameter £ 15 mm
Resin pockets and traces of Resin pockets are
Length £ 10 mm permitted Length £ 70 mm
pith only permitted if the
permitted
hole does not go
through the thickness
of the element.
Checks and splits Hardly visible permitted Slight splits at the ends Splits at the ends
and checks permitted and checks permitted
Colour variation Permitted if natural colours of the wood
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 strength or the wearing quality of
the wood flooring.
a
Knots are grouped together if the distance separating them, measured from edge to edge, does not exceed 30 mm.
b
Knots are slightly checked provided the width of the check does not exceed 1 mm.
c
Area: (p x d x d )/4 + ( x d x d )/4 + … when d is the smallest and d the largest diameter of the first knot.
a1 b1pa2 b2 a1 b1
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5.2.2.5 Castanea sativa (sweet chestnut)
Rules for sweet chestnut are given in Table 5.
Table 5 — Classification for Castanea sativa (sweet chestnut)
Face of the element
Class
Features
D
Sound sapwood Not permitted Not permitted Not permitted
Knots Permitted if: Permitted if: Permitted if:
Sound and intergrown diameter £ 10 mm diameter £ 20 mm diameter £ 25 mm
Unsound knots
diameter £ 5 mm diameter £ 8 mm diameter £ 15 mm
Curly grain Permitted up to 50 % of Permitted Permitted
the face of the element
Sound heart Permitted up to 20 % of Permitted Permitted
the length of the element
Yellow stain Permitted up to 5 % of the 50 % permitted Permitted
face of the element
Checks and splits Not permitted Permitted when the Permitted when the
length £ width of the length £ 50 % of the
element length of the element
Ends checks going through Not permitted
Permitted if £ 10 mm in Permitted if £ 30 mm in
the element
length length
Red coloration / Blackheart Not permitted Permitted. when the Permitted when the
length £ 20 % of the length £ 50 % of the
length of the element length of the element
Slope of the grain Permitted, no limit Permitted, no limit Permitted, no limit
Bark pockets
Not permitted Not permitted Not permitted
Lightning shake
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 of the tongue without taking into account the limits set
for the face.
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5.2.2.6 Larix spp. (larch)
Rules for larch are given in Table 6.
Table 6 — Classification for Larix spp. (larch)
Face of the element
Class
Features
D
Sound sapwood Not permitted Permitted Slight traces
permitted
Knots Permitted if: Permitted if:
Sound and intergrown diameter £ 10 mm diameter £ 20 mm
Unsound knots
diameter £ 3 mm diameter £ 10 mm
All features
permitted without
Checks Not permitted Permitted up to 15 mm in
limit to size or
length
quantity if these
Bark pockets Not permitted Not permitted do not impair the
strength or the
Lightning shake Not permitted Not permitted
wearing quality of
the wood
Slope of grain Permitted, no limit Permitted, no limit
flooring.
Colour variation 5 % of the face permitted Permitted
Resin pockets Not permitted Permitted 2 mm in width
Permitted 25 mm in
length
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 tongue without taking into account the
limits set for the face.
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5.2.2.7 Pinus sylvestris (redwood; Scots pine)
Rules for redwood; Scots pine are given in Table 7.
Table 7 — Classification for Pinus sylvestris (redwood; Scots pine)
Face of the element
Class
Features
D
Sound sapwood Permitted Permitted
Knots Permitted if: Permitted if:
Sound and intergrown diameter £ 10 mm diameter £ 20 mm
Unsound knots
diameter £ 3 mm diameter £ 10 mm
All features
permitted without
Checks Not permitted Permitted up to 15 mm in
limit to size or
length
quantity if these do
not impair the
Bark pockets Not permitted Not permitted
strength or the
Lightning shake Not permitted Not permitted
wearing quality of
the wood flooring.
Slope of grain Permitted, no limit Permitted, no limit
Colour variation 5 % of the face permitted Permitted
Resin pockets Not permitted Permitted 2 mm in width
Permitted 25 mm in length
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.
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5.2.2.8 Picea spp. (spruce) and Abies spp. (fir)
Rules for spruce and fir are given in Table 8.
Table 8 — Classification for Picea spp. (spruce) and Abies spp. (fir)
Face of the element
Class
Features
D
Sound sapwood Permitted Permitted
Knots Permitted if: Permitted if:
Sound and intergrown diameter £ 10 mm diameter £ 20 mm
Unsound knots
diameter £ 3 mm diameter £ 10 mm
All features
permitted without
Checks Not permitted Permitted up to 15 mm in
limit to size or
length
quantity if these do
not impair the
Bark pockets Not permitted Not permitted
strength or the
Lightning shake Not permitted Not permitted
wearing quality of
the wood flooring.
Slope of grain Permitted, no limit Permitted, no limit
Colour variation 5 % of the face permitted Permitted
Resin pockets Not permitted Permitted 2 mm in width
Permitted 25 mm in length
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.
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5.2.2.9 Other hardwoods
Rules for other hardwoods are given in Table 9.
Table 9 — Classification for other hardwoods
Face of the element
Class
Features
D
Sound sapwood Not permitted Permitted Slight traces
permitted
Knots Permitted if: Permitted if:
Sound and intergrown
diameter £ 2 mm diameter £ 5 mm
a
a
if not grouped together
if not grouped together
Unsound knots
diameter £ 1 mm diameter £ 2 mm
a
a
All features
if not grouped together if not grouped together
permitted without
Checks Not permitted Not through going.
limit to size or
Permitted if the width
quantity if these do
£ 0,5 % of the width of the
not impair the
element
strength or the
wearing quality of
Bark pockets Not permitted Not permitted
the wood flooring.
Lightning shake Not permitted Not permitted
Slope of grain Permitted, no limit Permitted, no limit
Colour variation Permitted. Slight traces of Permitted
natural discoloration
(mineral lines) permitted.
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.
In class sound sapwood is permitted if in a corner and up to 50 % of the thickness of the element.
a
Knots are grouped together if the distance separating them, measured from edge to edge, does not exceed 30 mm.
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5.2.3 Free class
The free class covers any species which may be used for wood flooring and for which hardness HB has
2
a minimum mean value of 10 N/mm . Hardness shall be measured according to EN 1534. The free class
covers any classification which the producer wishes to offer or which is requested by the buyer. The
proportions or limits of features shall be specifically indicated in the producers' literature/data sheets, in
conformity with Annex B and stated according to table B.1 when it refers to hardwood and according to
Table B.2 when it refers to softwood.
2 2
NOTE 10 N/mm : approximately 1 kgf/mm
5.2.4 Natural colours
Timber colours are mainly dependent on the wood species.
NOTE All timber varies in colour when exposed to light over a period of time.
5.3 Moisture content
Individual elements shall have a moisture content at the time of the first delivery of the product of
between 7 % and 11 %. Chestnut and maritime pine elements shall have a moisture content at the time
of the first delivery of the product of between 7 % and 13 %.
The moisture content shall be measured with an electric moisture meter in accordance with EN 13183-
2. In case of dispute, the moisture content shall be determined by oven-drying in accordance with
EN 13183-1.
5.4 Geometrical characteristics
5.4.1 General
All forms of elements are permitted, provided that their actual dimensions are within the dimensions and
permitted deviations specified in this sub-clause.
All dimensions are given at a reference moisture content of 9 %, except dimensions for chestnut and
maritime pine elements are given at a reference moisture content of 10 %.
Unless there is evidence to the contrary, it shall be assumed that the thickness and width of a piece of
timber increase by 0,25 % for every 1 % of moisture content above the reference moisture content,
and decrease by 0,25 % for every 1 % of moisture content below the reference moisture content.
The methods of measurement of geometrical characteristics are given in EN 13647.
NOTE Traditionally wood flooring elements to be used for “strip- or brick-pattern flooring“ are manufactured
right-handed (except in the case of maritime pine).
All the elements shall have the four edges perpendicular to the face or with a maximum slope of 3° (see
Figure 1).
The arrisses may be chamfered.
The back may have (a) glue pocket(s).
5.4.1.1 Dimensional characteristics
The following dimensional characteristics given refer to Figures 1 and 2:
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- thickness above the groove: t ‡ 35 % of the total thickness t of the element,
1
- thickness of the tongue: t ‡ 22 % of the total thickness t of the element,
3
- thickness of the part below the tongue: t ‡ 22 % of the total thickness t of the element,
4
- depth of optional glue pocket: t £ t/5,
5
- width of the tongue: For b < 70 mm, b ‡ 3 mm (minimum 2,5 mm for 10 % of the
2
length),
For b ‡ 70 mm, b ‡ 5 mm (minimum 3 mm for 10 % of the
2
length),
- depth of the groove minus
the width of the tongue: b – b ‡ 1 mm,
1 2
- slope of the upper lip: 0 £ a£ 3°,
- undercut: 0 £ b £ 1,5 mm,
3
- arrow tail:a (indicative value) = 67°,
- slope of the underlip: ß(indicative value) = 30°.
5.4.1.2 Examples of profiles
Figure 1 and Figure 2 show the most common profiles of elements.
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Key
1 Face of the element
2 Slope a
3 Glue pockets
a) Element of type 1 – Cross section AA
Key
1 Face of the element
2 Edge groove
3 Edge tongue
4 End groove
5 End tongue
b) Element of type 1 - View of the face
Figure 1 — Element of type 1
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EN 13226:2002 (E)
Key
1 Face of the element
2 Slope a
3 Glue pockets
4 Detachable ton
...
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