Depth 43.50 mm Length 450 mm Width 600 mm Weight 17 kg Load Capacity 5 Tonne. Manufactured using galvanised steel, this manhole cover by Clark-Drain creates a robust cover with a load rating of 10 tonnes. Ideal for use in driveways and restricted access areas, the manhole is internally sealed to prevent odours leaking and the cover can be rotated to fit with the design of the surface finish for convenience.