Why Terra Firma?

30 years of experience

Sustainable products

Innovative designers & a modern manufacturing operation

Engineering Excellence

Highest quality materials

Designed & customised for your needs

Designing improved
OH&S standards into every
product & solution

Local assembly options
for tailored projects

Standardised designs
for efficiency and affordability

Easier and faster installation,
monitoring and maintenance

Silver Award 2023
Australia’s 50 Most Innovative

ISO 9001 QMS Certification

MWOA member

Composites Australia member

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Firma difference

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Frequently asked questions


Our pit lids can be opened with a range of standard keys and lifters. See below for a full list of keys and lifters to find the right option for you:

  • Telstra Key – Endurotek range access covers, Telstra and NBN covers including P2, P3 and P5 pit covers
  • Toolbox Key – Classic range pit lids
  • Ergonomic Lifter – Classic range pit lids
  • Lifting Aid – ThruBeam range pit lids
  • Lifter with seal breaker – ThruBeam range pit lids and access covers
  • Ergo Gatic Lifter – Endurotek lids
The right cover and class rating will depend on the intended use and location. Please see the rating and uses below to determine which manhole cover suits your application:

  • B Class – Pedestrian and Walkways (Light Duty)
  • C Class – Incidental Traffic (Medium Duty)
  • D Class – In Roads (Heavy Duty)
  • E Class – Highways (Heavy Duty)
Old-fashioned access covers made with concrete or corroded iron put workers at high risk of back, finger, hand and shoulder injuries due to poor design and heavy weights.

Terra Firma has effectively engineered manual handling risks out of lifting access covers by utilising a fibre-reinforced plastic (FRP) in the production of our products, which are a fraction of the weight of traditional materials.


Yes, you can. FRP can be cut onsite using an angle grinder or handheld circular saw with a diamond-tip blade.

Yes, TerraGrate FRP Moulded and Mini Mesh Grating has been tested and approved to Bushfire Attack Level 40 (BAL40) rating in NATA-certified facilities.

Absolutely! Terra Firma can tailor make a solution for most projects. Please contact us for more information.

Terra Firma is a wholly Australian owned and managed company. All of our products are locally warehoused, assembled and shipped. However, some of our component products are manufactured offshore. We have resellers across Australia.

More questions? View our FAQ articles here

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