For GS Mark (Tested Safety) certification, the Tripp Trapp® chair was tested according to various standards.

One of these is a standard called DIN 68 878, which is a quality norm for adult chairs.

This standard involves a dynamic test where 110 kg/ 242.5 lbs is placed on the seat, which is then tilted backwards 6000 times.

The Tripp Trapp® chair passes all the tests in that standard, which means a load of up to 110 kg/ 242.5 lbs can be safely placed on the chair.