AS 3996 Classification of Access Covers and Grates

Access Covers and Grates are designated by classes A, B, C, D, E, F & G according to load capacity set out in the table below.

Australia Loading Class	Typical Uses	Approximate Wheel Load	EN124 Loading Class
A 10kN Extra light duty	Footways and areas accwssible only to pedestrians & pedal cyclists	330kg	Class A 15kN
B 80kN Light Duty	Footways that can be mounted by vehicle or livestock, and light tractor paths	2,670kg	------
C 150kN Medium Duty	Malls and pedestrian areas open to slow moving commercial vehicles	5,000kg	Class B 125kN
D 210kN Heavy Duty	Carriageways of roads and areas open to commercial vehicles	8,000kg	Class C 250kN
E 400kN Extra Heavy Duty	General docks and aircraft pavements	13,700kg	Class D 400kN
F 600kN Extra Heavy Duty	Docks and aircraft pavements subject to high wheel loads	20,000kg	Class E 600kN
G 900kN Extra Heavy Duty	Docks and aircraft pavements subject to very high wheel loads	30,000kg	Class F 900kN