oSIST prEN 1729-1:2025

SLOVENSKI STANDARD
01-maj-2025
Pohištvo - Stoli in mize za vzgojno-izobraževalne ustanove - 1. del: Funkcionalne
mere
Furniture - Chairs and tables for educational institutions - Part 1: Functional dimensions
Möbel - Stühle und Tische für Bildungseinrichtungen - Teil 1: Funktionsmaße
Ameublement - Sièges et tables pour établissements d'enseignement - Partie 1 :
Dimensions fonctionnelles
Ta slovenski standard je istoveten z: prEN 1729-1
ICS:
97.140 Pohištvo Furniture
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
EUROPEAN STANDARD
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2025
ICS 97.140 Will supersede EN 1729-1:2015
English Version
Furniture - Chairs and tables for educational institutions -
Part 1: Functional dimensions
Ameublement - Sièges et tables pour établissements Möbel - Stühle und Tische für Bildungseinrichtungen -
d'enseignement - Partie 1 : Dimensions fonctionnelles Teil 1: Funktionsmaße
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 207.
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 1729-1:2025 E
worldwide for CEN national Members.

Contents Page
European foreword . 4
Introduction . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Functional dimensions for chairs, corresponding tables and stools . 12
4.1 General. 12
4.2 Functional dimensions and size marks for chairs with slopes between −5° and +7°
and associated tables . 13
4.3 Functional dimensions and size marks for tables for use with single sloped chairs . 18
4.3.1 General. 18
4.3.2 Dimensions and size marks for tables for use with chairs with seat slopes between
−5° and +7° . 18
4.3.3 Functional dimensions and sizemarks for standing-height tables . 22
4.3.4 Requirements for adjustable and multi-size chairs and tables . 23
4.3.5 Functional dimensions for stools and associated worksurfaces . 23
5 Determination of dimensions of chairs . 26
5.1 General. 26
5.2 The school chair measuring device (SCMD) . 26
6 Marking . 29
7 Instructions . 30
8 Approval of range . 30
9 Test report . 31
Annex A (informative) Guidance for the calculation of the height of adjustable chairs and
tables . 32
Annex B (normative) Functional dimensions for chairs with double-sloped seats and
associated tables . 33
B.1 Functional dimensions and size marks for chairs . 33
B.2 Functional dimensions and size marks for tables . 40
B.3 Legroom . 41
B.4 Requirements for adjustable high chairs with double-sloped seats and tables . 42
Annex C (informative) Guidance for the calculation of the height of chairs and tables in
Annex B . 43
Annex D (normative) Determination of dimensions of chairs . 45
D.1 Determination of dimensions of chairs with size marks 3 to 7 using SCMD . 45
D.1.1 General. 45
D.1.2 Preparation of the chair prior to measuring chairs . 46
D.1.3 Preparation of SCMD . 48
D.1.4 Initial placement of SCMD on the chair . 51
D.1.5 Final placement of SCMD on the chair . 57
D.1.6 Determination of MFP and verification of existence of lumbar support and backrest
height requirements . 58
D.1.7 Placement of mass on SCMD . 63
D.1.8 Measurement of seat angle, angle between seat and back, seat height and seat depth
with SCMD . 64
D.2 Determination of chair dimensions of chairs with size marks 3 to 7 without using
SCMD . 68
D.2.1 General . 68
D.2.2 Determination of backrest width (b ) . 68
D.2.3 Determination of seat width (b ) . 69
D.2.4 Determination of armrest length (n) . 69
D.2.5 Determination of armrest width (o) . 69
D.2.6 Determination of raised edges (e) . 69
D.3 Determination of dimensions of chairs with size marks 0 to 2 without using the
SCMD . 69
D.3.1 General . 69
D.3.2 Determination of seat height (h ) . 69
D.3.3 Determination of seat width (b ) . 70
D.3.4 Determination of backrest height (h ) . 70
D.3.5 Determination of raised edges and surfaces (e) . 70
Annex E (informative) Rationale . 71
Bibliography . 82

European foreword
This document (prEN 1729-1:2025) has been prepared by Technical Committee CEN/TC 207
“Furniture”, the secretariat of which is held by UNI.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 1729-1:2015.
EN 1729-1:202Y includes the following significant technical changes with respect to EN 1729-1:2015:
— rationalization of the annexes;
— improvement of the measurement method.

Introduction
This part of EN 1729 is based on the principle that chairs stools and tables, intended for use in
educational institutions for general-purpose education, should be designed to encourage good postures.
This part of EN 1729 takes selected national standards into consideration.
It does not specify design, but only those dimensions which promote good posture for either fixed or
adjustable furniture. The dimensional requirements of this document permit various interpretations of
design; hence customs, educational practices, technical and financial circumstances of individual
countries can be satisfied. It includes a rationale for the determination of functional dimensions.
The minimum dimensions specified are considered as the absolute minimum. They can be exceeded.
The maximum dimensions specified are considered as the absolute maximum; smaller dimensions can
be used.
EN 1729-2 specifies safety requirements and test methods.

1 Scope
This document specifies functional dimensions and markings for all chairs, stools and tables, for
educational institutions, including fixed and adjustable chairs and tables.
It applies to both un-upholstered and upholstered chairs and stools as well as to both non-swivel and
swivel chairs. It applies to furniture for use with laptop computers or portable devices.
It does not apply to ranked seating or special purpose workstations.
It does not apply to furniture used by teaching personnel.
Annex A (informative) includes guidance on size marks for adjustable chairs and tables.
Annex B (normative) includes double-sloped high chairs and associated tables.
Annex C (informative) includes guidance on calculating heights of double-sloped chairs and associated
tables.
Annex D (normative) includes chair measurement methods.
Annex E (informative) includes a rationale for functional dimensions.
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
...