General requirements for solid wood flooring

ISO 17959:2014 specifies the requirements and test methods of characteristics of solid wood flooring boards for internal (interior) use as flooring. It also specifies packaging and marking requirements. It is applicable to both finished and unfinished solid wood flooring board. Solid wood parquet is not covered.

Exigences générales pour revêtements de sol en bois massif

General Information

Status
Published
Publication Date
08-Dec-2014
Technical Committee
Current Stage
9093 - International Standard confirmed
Start Date
30-Mar-2020
Completion Date
30-Mar-2020
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ISO 17959:2014 - General requirements for solid wood flooring
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INTERNATIONAL ISO
STANDARD 17959
First edition
2014-12-15
General requirements for solid wood
flooring
Exigences générales pour revêtements de sol en bois massif
Reference number
ISO 17959:2014(E)
ISO 2014
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ISO 17959:2014(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2014

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form

or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior

written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of

the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2014 – All rights reserved
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ISO 17959:2014(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 1

4 Requirements .......................................................................................................................................................................................................... 4

4.1 Moisture content ................................................................................................................................................................................... 4

4.2 Geometrical characteristics ......................................................................................................................................................... 4

4.3 Paint film performance .................................................................................................................................................................... 5

4.4 Grading........................................................................................................................................................................................................... 5

4.5 Other declarations at the time of the first delivery ................................................................................................. 6

5 Test methods ............................................................................................................................................................................................................. 6

5.1 Geometrical characteristics ......................................................................................................................................................... 6

5.2 Test of moisture content and paint film performance .......................................................................................... 6

6 Packaging ..................................................................................................................................................................................................................... 7

7 Marking .......................................................................................................................................................................................................................... 7

Annex A (normative) Test methods of measuring geometrical characteristics ......................................................9

© ISO 2014 – All rights reserved iii
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ISO 17959:2014(E)
Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards

bodies (ISO member bodies). The work of preparing International Standards is normally carried out

through ISO technical committees. Each member body interested in a subject for which a technical

committee has been established has the right to be represented on that committee. International

organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.

ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of

electrotechnical standardization.

The procedures used to develop this document and those intended for its further maintenance are

described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the

different types of ISO documents should be noted. This document was drafted in accordance with the

editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any

patent rights identified during the development of the document will be in the Introduction and/or on

the ISO list of patent declarations received (see www.iso.org/patents).

Any trade name used in this document is information given for the convenience of users and does not

constitute an endorsement.

For an explanation on the meaning of ISO specific terms and expressions related to conformity

assessment, as well as information about ISO’s adherence to the WTO principles in the Technical Barriers

to Trade (TBT), see the following URL: Foreword — Supplementary information.
The committee responsible for this document is ISO/TC 218, Timber.
iv © ISO 2014 – All rights reserved
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INTERNATIONAL STANDARD ISO 17959:2014(E)
General requirements for solid wood flooring
1 Scope

This International Standard specifies the requirements and test methods of characteristics of solid

wood flooring boards for internal (interior) use as flooring. It also specifies packaging and marking

requirements.

It is applicable to both finished and unfinished solid wood flooring board. Solid wood parquet is not

covered.
2 Normative references

The following documents, in whole or in part, are normatively referenced in this document and are

indispensable for its application. For dated references, only the edition cited applies. For undated

references, the latest edition of the referenced document (including any amendments) applies.

ISO 2409, Paints and varnishes — Cross-cut test

ISO 3130:1975, Wood — Determination of moisture content for physical and mechanical tests

ISO 15184, Paints and varnishes — Determination of film hardness by pencil test
ISO 24294, Timber — Round and sawn timber — Vocabulary
ISO 16415, Non-structural timber grading requirements
3 Terms and definitions

For the purposes of this document, the terms and definitions given in ISO 24294 and the following apply.

3.1
solid wood flooring

assembly of individual solid wood boards installed either on the primary structure or on the sub-floor

3.2
solid wood flooring board

long solid (single-layer) wood piece with parallel sides prepared to a regular thickness and constant

profile(s) with or without profiled edges and/or ends, capable of being assembled with other analogous

wood pieces
Note 1 to entry: See Figure 1.
a) With profiled edges and/or ends b) Without profiled edges and/or ends
Key
1 face
2 end
© ISO 2014 – All rights reserved 1
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ISO 17959:2014(E)
3 edge
4 back
Figure 1 — Example of solid wood flooring board
3.3
finished solid wood flooring board
flooring board that has been surface-coated with lacquer, wax, oil, etc.
3.4
unfinished solid wood flooring board
flooring board without any surface coating
3.5
lipping
mismatch

difference in height between two adjacent faces of assembled flooring boards when laid on a flat surface

Note 1 to entry: See Figure 2
Key
1 lipping
2 face
Figure 2 — Example of lipping
3.6
bow
lengthwise curvature of a flooring board perpendicular to the face
Note 1 to entry: See Figure 3.
Key
1 bow
Figure 3 — Example of bow
2 © ISO 2014 – All rights reserved
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ISO 17959:2014(E)
3.7
cup
curvature of a flooring board across the width of the face
Note 1 to entry: See Figure 4.
Key
1 cup
Figure 4 — Example of cup
3.8
spring
lengthwise curvature of a flooring board perpendicular to the edge
Note 1 to entry: See Figure 5.
Key
1 spring
Figure 5 — Example of spring
3.9
twist

distortion of a solid wood flooring board in which one corner is out of the plane of the other three corners

Note 1 to entry: See Figure 6.
Key
1 twist
Figure 6 — Example of twist
© ISO 2014 – All rights reserved 3
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ISO 17959:2014(E)
4 Requirements
4.1 Moisture content

Unless otherwise agreed on the order between buyer and supplier, individual solid wood flooring board

shall have moisture content before the shipment of the first delivery between 6 % and the average

equilibrium moisture content of the wood found in the customer’s local climate.
NOTE For instance, the moisture content in France is between 7 % and 11 %.
4.2 Geometrical characteristics
4.2.1 General

Unless otherwise agreed on the order between buyer and supplier, all dimensions of solid wood flooring

board shall be given at a reference moisture content of 9 %. 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.
4.2.2 Dimensions and tolerance
4.2.2.1 Dimensions
The common dimensions are given in Table 1.
Table 1 — Dimensions for solid wood flooring board
Dimensions in millimetres
Thickness Width Length
≥10 ≥90 ≥ 400

NOTE The length and width of the solid wood flooring board refer to face size of the solid wood flooring

board.
4.2.2.2 Tolerances

Unless otherwise agreed on the order between buyer and supplier, solid wood flooring board shall have

the tolerances of dimensions at the time of the first delivery given in Table 2.
Table 2 — Tolerances
Dimensions in millimetres
Dimension Tolerance
Length ±2,0
Width ±1,0
Thickness ±1,0
Lipping (mismatch) ≤0,5
4.2.3 Deformation
4.2.3.1 General

Unless otherwise agreed on the order between buyer and supplier, the deformation limitations shall

meet the requirements in 4.2.3.2 to 4.2.3.5.
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ISO 17959:2014(E)
4.2.3.2 Cup
The cup shall not exceed 0,7 % of the width at the time of the first delivery.
4.2.3.3 Bow

The bow shall be evaluated taking into account the length and the method of laying.

If the flooring boards are to be installed by gluing only, this shall be stated when ordering. For such

flooring boards, the bow shall not exceed 0,5 % of the length at the time of the first delivery.

If the flooring boards are to be installed by nailing, the limit for the bow shall be determined by their

suitability to be laid using commercially available equipment.
4.2.3.4 Spring
The spring shall be evaluated taking into account the length.

For lengths not exceeding 1 m, the spring shall not exceed 0,1 % of the considered length at the time of

the first delivery.

For lengths more than 1 m, the spring shall not exceed 0,2 % of the considered length at the time of the

first delivery.
4.2.3.5 Twist

The twist shall be evaluated taking into account the length and the method of laying.

If the flooring boards are to be installed by gluing only, this shall be stated when ordering. For such

flooring boards, the twist shall not exceed 0,15 % of the length at the time of the first delivery.

If the flooring boards are to be installed by nailing, the limit for the twist shall be determined by its

suitability to be laid using commercially available equipment.
4.2.4 Squareness and other angular deviations

The deviation from all the 90° angles and from required angles for specific patterns shall not exceed

0,2 % measured across the width.
4.3 Paint film performance

4.3.1 This subclause is only applicable to finished solid wood flooring board coated with paint sand;

it is not applicable to finished solid wood flooring board coated with oil, wax and unfinished solid wood

floor
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