Section 4-2. Load classes

Scaffolding shall be classified in the following six classes:

Class	Uniformly distributed load kN/m² (kg/m²)	Concentrated load on an area of 500 mm x 500 mm kN (kg)	Load of one person on an area of 200 mm x 200 mm kN (kg)	Load on partial area
				kN/m² (kg/m²)	Partial area m²
1	0.75 (75)	1.50 (150)	1.0 (100)	Not permitted
2	1.50 (150)	1.50 (150)	1.0 (100)	Not permitted
3	2.00 (200)	1.50 (150)	1.0 (100)	Not permitted
4	3.00 (300)	3.00 (300)	1.0 (100)	5.00 (500)	0.4 A
5	4.50 (450)	3.00 (300)	1.0 (100)	7.50 (750)	0.4 A
6	6.00 (600)	3.00 (300)	1.0 (100)	10.00 (1000)	0.5 A

A = area between two pairs of posts.