Australia-wide sales enquiries | 1300 885 295

Australia-wide sales enquiries | 1300 885 295


Mascot Engineering are Australia’s leading experts in providing approved solutions for use in infrastructure projects nationwide.

Since 1920, Mascot Engineering have worked in conjunction with the various authorities to provide certified solutions in accordance with AS3996, that are designed specifically for the heavy duty demands of infrastructure applications such as airports and rail.

Our range of cast iron access covers, gratings, pre-cast electrical and drainage pits are available in load ratings up to Class G, and have been certified for use in various projects such as:

  • Energy Utilities
  • Airports
  • Water treatment plants
  • Shipping ports
  • Defence
  • Road and rail
  • Retail
  • Council
  • And more…

Nationwide Warehousing and Distribution

Infrastructure projects such as roads, naval bases and water treatment facilities are often located in remote areas. We have this covered, as nationwide delivery is made possible due to our various warehouse locations around the country working in conjunction with our partner agency network.

Operating a nationwide distribution network enables us to deliver product to you with shorter lead times and more cost effectively, as we’re holding stock in more readily accessible locations around Australia.

Infrastructure Product Range

Mascot Engineering’s range of B, D, and G Class products have been certified to comply with AS3996 load classifications. Our product range is supported by a team of technical experts who are capable of providing not only advice on the right solution for your project, but also guidance on the appropriate installation of our entire range.


AS3996 Load Classifications


Mascot Engineering’s Range of Heavy Duty Access Covers (AS3996)

TypeClass RatingClass RatingClass Rating
Single Part InfillBDG
Two Part InfillBDG
Three Part InfillBDG
Multipart InfillBDG
Round InfillBD
Trench RunsBDG
Solid Top (Gastight)BDG
Solid Top (Non-Gastight)BDG
GMS Checkerplate (Boltdown)B
GMS Checkerplate PadlockableB
Concrete EncasedBDG
Custom Concrete Encased BDG


Mascot Engineering’s Range of Heavy Duty Grate and Frames (AS3996)

TypeClass RatingClass RatingClass Rating
GMS Grate and FrameBD
GMS Healproof Grate and FrameBD
GMS Trench Grate and FrameBD
Cast Iron Trench Grate and FrameBDG
Concrete Encased Grate and FrameBDG
Custom Concrete Encased Grate and FrameBDG


Custom Precast Concrete Pits and Covers

As experienced manufacturers supplying the needs of Australian infrastructure, we understand that standard sized pits and access covers may not be suitable for every project. We pride ourselves on our capabilities in customising a solution that is built for purpose. We regularly engineer specifically designed concrete, GRC, and cast iron products in accordance with the relevant load rating to suit individual project requirements. Our team are on hand to work with you from concept right through to delivery.

For more information on custom access covers, see Custom Concrete Encased Covers

For more information on custom pits, see Large Custom Precast Enclosures




Technical Support and Project Advice

Our technical support team are here to provide expert product and installation advice, depending on your project requirements. We also work to provide assistance in gaining approvals with the various authorities whenever needed for your custom projects.

Let us know what your project requires, and we’ll work with you to deliver the right solution.


Infrastructure Projects

  • Sydney Harbour Tunnel, NSW
  • Department of Defence Housing Projects
  • Darling Harbour, Sydney, NSW
  • Cockburn Shopping Centre, WA
  • Melbourne International Airport, VIC
  • Perth Airport, WA
  • Westmead Hospital Upgrade, NSW
  • Reedy Creek Mine, QLD
  • Australian Federal Police Forensics Facility, Majura, ACT
  • NSW Parliament House, NSW
  • Energex Facility, QLD
  • Karratha Water Treatment Plant, WA

Please see here for more information on the projects Mascot have supplied.