Surcharge Pit Grates

Surcharge Pit Grates

Surcharge Pit Grates are manufactured in a range of standard sizes and are hinged and bolted down with options for bolt down or cast-in legs, generally 300mm long. The bolt down range is suitable for existing pits or where the concrete has been poured before the grate arrives and bolted down to the pit surface wall as required. Cast-in legs are typically used when the grate is cast-in while the pit concrete wall is being poured.

Weldlok can manufacture most sizes and lengths to accommodate your requirements and all grates are tagged with manufacturer’s name, load class, grate weight and code number as required by AS 3996:2019.

Close Diamond Grating is designed for applications with sustained heavy wheel loads where multidirectional travel across the grating is required. Formed spacer bars can be varied in size to suit the depth of the load bars thus providing maximum lateral restraint for the load bars.


  • Hinged (where noted)
  • Bolt-down security
  • Trash Bar
  • AS3996 (compliant to Class A)

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