Pit Lids and Manhole Covers
Terra Firma composite access covers solve many of the problems caused by traditional iron, concrete pit lids and manhole covers. Our composite lids won’t crack, corrode, or break your back! Learn More

Terra Firma Industries is Australia’s leading manufacturer and supplier of fibreglass composite lids and access covers. Established in 1994, we saw the need for a better alternative to the heavy, and dangerous, concrete and metal lids in use. At Terra Firma, we’re dedicated to solving your problems with a vast range of innovative lightweight composite pit lid and access covers. To see our full range of products, visit our products page.
For more information on Terra Firma, contact us today
Our Pit Lid & ManHole Cover Product Range
Rectangular Access Covers

Multi-Part Pit Lids

Round Manhole Covers

Heavy-Duty Pit Covers

























Testimonials
Latest News
Metal manhole covers pose electrocution risk!
Composite covers insulate – Iron covers conduct!
Read MoreHow to improve water quality with art!
Among the team at Terra Firma we have surfers, sailors, divers and just plain sun lovers who enjoy nothing more than a day at the beach or spending time on the water.
Read MoreThe Keys are already in your toolbox!
If you wonder which keys open the Terra Firma Endurotek Slam Lock don’t worry – the answer is already in your toolbox.
Read MoreHOW TO ELIMINATE ACCESS COVER OH&S INJURY RISKS
An Ergonomic OH&S Analysis of Muscle Activation and Posture When Terra Firma Products are Utilised During Pit Lid Lifting and Replacing Operations. Authors: Dr Kevin Netto, Mr Caleb Lewis, Mr Gavin Lenton, School of Exercise and Nutrition Sciences, Deakin University Summary: Clear links can be seen between the OH&S risks for workers conducting manual handling […]
Read MoreHOW TERRA FIRMA ENGINEERED RISK OUT OF PIT LIDS
Some methods to protect workers from injury are more reliable than others. How effective different risk reduction strategies are is usuually measured using the OH&S Hierarchy of Controls. The Hierarchy ranks some types of risk reduction strategies above others. For example, it’s better to remove the hazard entirely rather than introduce a bunch of laws […]
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