Postura+ Chair & Table Sizing Guide
In January 2007, British and European Standards were established for ‘chairs and tables for educational institutions.’ BS EN 1729 Part 1 ensures that furniture meets appropriate size, shape and ergonomic design to promote good posture and reduce RSI and back pain in students. This guide includes size marks for fixed seat and table heights suitable for students of different ages.
The correct seat height is determined by measuring the popliteal height, which is the distance from the floor to the back of the knee when seated with thighs horizontal and lower leg vertical with feet flat on the floor. This measurement is useful in determining the compatible size for existing or older furniture that does not comply with BS EN 1729. Stature is measured from the floor to the top of the head.
Popliteal height defines the correct seat height. The measurement is taken from the floor to the back of the knee when seated with thighs horizontal and lower leg vertical with feet flat to the floor. This measurement is useful when comparing existing or older furniture that does not comply with BS EN1729 to determine the compatible size.
Stature is from floor to the top of the head.
Identifying the size of your Postura+ chair
On Postura+ chairs you can find a colour-coded sticker on the top side of the backrest that corresponds to the table above. The example (below left) shows a blue sticker, so the chair can be identified as a Ash Grey size mark 6 chair.