These standards cover strength, durability, stability, flammability and safety.
The suppliers of the chairs have formally agreed to maintain quality and to submit their products to regular auditing.
AS/NZS 4688 (levels 4, 5 and 6)
Most certified fixed height chairs in Australia and NZ are tested to the requirements of AS/NZS 4688:2000 Furniture - Fixed height chairs. This standard states that it is not for more than occasional use by people over 100 kg.
- AFRDI Level 6 certified fixed height chairs are described as suitable for heavy commercial use.
- AFRDI Level 5 certified fixed height chairs are described as suitable for general commercial use.
- AFRDI Level 4 certified fixed height chairs are described as suitable for heavy domestic/light commercial use.
AFRDI 151 – Rated Load
This standard is designed to cater for chairs intended to be used by people heavier than 100 kg.
It is available in the following options:
| Options | Chairs for |
| 135 | Public space use for people up to and including 135 kg |
| 160 | Public space use for people up to and including 160 kg |
| 185 | Public space use for people up to and including 185 kg |
| 300 | Bariatric use for people up to and including 300 kg |
Certification requirements at the bariatric level of the Rated Load standard (AFRDI 151) include limited dimensional/ergonomic criteria. All Rated Load options apply equal or greater loads than AFRDI level 6.
