Terra Firma Pit Lids

Light * Strong* Durable* Secure

Geotas is the Tasmanian agent for Terra Firma Pit Lids. The unique fibreglass composite construction weighs a fraction of concrete or metal covers yet is tough enough to drive a 90 tonne truck over.

Standard lids & frames are manufactured to suit most existing pit sizes.

  • All with stainless steel locks & galvanized steel frames.
  • All frames are nominally 50mm thick.
  • Special sizes can be manufactured to meet your requirements.

Standard products brochure


  • Terra Firma B-80 is built for footpaths, parks and kerbside applications where incidental traffic mounting may occur. These strong,lightweight lids solve the problem of broken pit lids in residential areas. B80 brochure
  • Terra Firma Freeway C-150 is suitable for areas open to slow moving traffic or shoulder areas of major roads and freeways. This lid was specifically designed for the VicRoads network. C150 brochure
  •  Terra Firma’s new D Class product range has an extended working life of over 20 years. Built on Thru-Beam technology, they incorporate a unique and innovative torsional resistant composite frame to eliminate many of the causes of wear with traditional cast iron covers. D class


To place an order, please supply the internal & external dimensions of your pit, and any other relevant information. Please note we will assume that pit walls are 150mm unless otherwise stated. Order Form

 More information is available on the Terra Firma website.