Terra Firma B-Class is built for footpaths, parks and kerbside applications where incidental traffic mounting may occur. These strong, lightweight manhole covers solve the problem of broken put lids in residential areas.
Flexible Designs & Colours
Available in assorted colours and sizes to suit any streetscape
Flexible frame design
A variety of frame options are available to suit your specific application. Terra Firma pit lid frames are galvanised in compliance with AS/NZS 4680:2006. Galvanised steel conforming to AS/NZS 4680:2006 will typically last in excess of 20 years in drainage lid installation.
High structural performance
Independently tested to AS3996:2006.
Available in B-Class, load tested up to 80kN.
High destructive load tested
Performs well beyond the standard, has been tested by a NATA accredited facility. B-Class 112.4kN (B80)
Secure and lockable
Turning mechanism protects the pit from vandalism and unauthorised access. Terra Firma long-life special stainless-steel locks are designed to stay clear of dirt and grit.
Extended working life
Terra Firma composite pit lids have been in place for over 20 years.
A fraction of the weight of concrete and metal covers, Terra Firma pit lids can easily be opened by a single person well within WorkSafe requirements and with no need for additional lifting equipment. Installation and maintenance of pit lids is now a one-person job.
One Man Maintenance
A lightweight lid with one-man lifting mechanism allows single person maintenance and cleaning, saving dollars and injuries.
Tested to AS 4586:2004 V rating, the highest non-slip rating for pedestrian zones. The surface is integrated during the manufacturing process with open texture to resist dirt build-up and ensure non-slip resistance throughout working life.
Terra Firma composite lids will not corrode when in contact with other materials. Unaffected by sand, salt and all chemicals met in road environments.
Transparent to radio waves
Allows use of modern, radio-transmitted asset management and metering systems.
Non-combustible with high fire resistance properties.
Terra Firma Industries operates a quality management system in accordance with ISO: 9001:2008. Products are Australian made and owned, and endorsed by the five quality ticks logo.
Winner: 2011 Award for Sustainable Initiatives, Parks and Leisure Australia Awards of Excellence
Nominated: 2011 WorkSafe Awards (https://www.youtube.com/watch?v=LIPWRtAOdRs)
*Please note we only keep popular colours in stock, others are subject to order. We can also manufacture to a large range of colours or match any sample depending on quantity.
- Junction Frame
- Side Entry Frame
- Concrete Encased
- Concrete Surround Frame
- Reinforced Lintels
- B2 & SM2 Grate
Available in various framing materials including composites, aluminium, stainless steel, and galvanised.
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