School Desk and Chair Sizes: A Guide to EN 1729 Size Marks
The right size of desk and chair directly affects a student's posture and how comfortably they can work through a lesson. The European standard EN 1729-1 (TS EN 1729-1 in Turkey) defines the dimensions of chairs and tables used in educational institutions with eight size marks, from 0 to 7. Each size mark has a colour code, so the right chair and the right desk can be matched easily in the classroom.
In short: The size mark is chosen by the student's height, not by age. The chair and the desk should always have the same size mark.
LINX chair Nina chair Vega school desk
Left to right: LINX chair, Nina chair, Vega school desk
How do you choose a size mark?
A size mark is chosen by the student's height, not by age. Children of the same age can differ greatly in height, so one classroom may need more than one size mark. The chair and the desk are always chosen from the same size mark; the coloured marker on the product shows which mark it belongs to.
EN 1729 size mark table
Summary values for size marks 2–7, used for school-age children:
Size mark | Colour | Student height (cm) | Seat height (cm) | Table height (cm) |
2 | Violet | 108–121 | 31 | 53 |
3 | Yellow | 119–142 | 35 | 59 |
4 | Red | 133–159 | 38 | 64 |
5 | Green | 146–176.5 | 43 | 71 |
6 | Blue | 159–188 | 46 | 76 |
7 | Brown | 174–207 | 51 | 82 |
Size marks 0 (white) and 1 (orange) are smaller sizes for pre-school. The values in the table are a summary; when preparing a tender specification, refer to the tolerances and other dimensions (such as seat depth and backrest height) in the current text of the standard.
Practical steps for finding the right size in the classroom
Measure: Measure the students' heights and work out the height range in the class.
Group: If the height range does not fit one size mark, equip the class with two size marks.
Match: Choose the chair and the desk from the same size mark.
Check the posture: Feet should rest flat on the floor, knees should be at roughly a right angle, and arms should reach the desk top without raising the shoulders.
Allow for growth: Height differences grow in secondary and high school; desks in more than one height or height-adjustable chairs make it easier to bridge the gap.
Sizes in Pikade products
School chairs: 38, 42 and 46 cm seat height
School desks: 65, 70 and 75 cm height
As stated in the technical data sheets of the LINX chairs, these products comply with TS EN 1729-1 and TS EN 1729-2; a 46 cm seat height corresponds to size mark 6.
When ordering, simply give us your students' height range or the size mark you need, and we will choose the right desk and chair height together.
or call: +90 212 320 11 22
Source: SATRA, EN 1729 size marks and colour codes; seat and table heights from the EN 1729-1 summary table.
Comments