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Plastic Poly Pit P5-800

Features & Benefits 

  • Enhanced depth for efficient installation
  • Exceptional strength and durability
  • Versatile cover options for customization
  • VicTrack and ARTC approved
  • Environmentally friendly with recycled materials
SKU PPP58 Category


Plastic Poly Pit P5-800: The Ideal Solution for Depth and Durability

The Plastic Poly Pit P5-800 Pit is an integral component in infrastructural projects, specifically designed for road, rail, and electrical usage. Its standout feature is the enhanced depth, providing a cost-effective solution to meet installation requirements. Manufactured from high-density polyethylene (HDPE) in compliance with Australian Standard AS/NZ 3996, this pit boasts exceptional strength and carries a Class A & B load rating, depending on installation.

Added Depth & Strength

The P5-800 Poly Pit  is crafted from UV stabilized High-Density Polyethylene (HDPE), promising durability and longevity. Constructed through a rotational moulding process with UV-stabilised polyethylene, the P5-800 Pit is not just durable but also lightweight, making it easy to handle during installation. The product meets the demanding criteria for installation and long-term use.

Versatile Cover Options

The P5-800 Plastic Poly Pit  provides a range of cover options, including Class A, B & C covers made from concrete, composite, cast iron, and GMS. This diversity of options ensures you have the appropriate cover to match your pit and the nature of your project. It’s compatible with both standard and lockable lids which adds to its versatility.

Rail Approved

Used extensively in rail and electrical projects, the P5-800 Pit is VicTrack and ARTC approved, attesting to its robustness, quality and guaranteeing its compliance with the stringent requirements of these sectors. It’s the go-to pit solution for professionals seeking a high-quality, resilient, and approved product for their heavy-duty needs.

Compliance with Australian Standards

The Plastic Poly Pit P5-800 is designed and rigorously tested for Class A applications under Australian Standard AS/NZ 3996. Additionally, it can achieve a Class B rating when backfilled with crushed rock or stabilised sand, and supplemented with internal PVC pipe support.

Environmentally Friendly Solution

Made from up to 90% recycled materials, the  P5-800 is an ecologically conscious choice for your projects. Designed and manufactured to meet Australian Standard AS/NZ 3996, this Class B rated pit stands out as a top-tier selection that’s both environmentally and quality conscious.

Utilize the Benefits of the P5-800 Pit Extension

The P5-800 serves as a stronger, heavy-duty extension of the standard P5 pit, offering superior durability and size advantages. Equip your project with the best by choosing the Plastic Poly Pit P5-800 supplied by Convic Australia. Contact us today for more information and to discuss your project requirements.



Weight (kg)
Length (mm)
Width (mm)
Depth (mm)
Clear Opening
15 705 455 800 647 x 400


Detailed Dimensions:


705 647 565 455 400 330 310 800 791 391

*All measurements in millimetres 

Technical Specifications

Compressive strength: 58MPa D-695
Flexural strength: 15MPa D-790
Tensile strength: 14Mpa D638
Water absorption: +0.31% D-570
Water vapour transmission: WVT 0.1392g/m2 – 1,592hrs E96
Coefficient of friction (Mannings): n=0.010
Chemical resistance Good


Installation Instructions

Telstra Guidelines on Correct Pit Installation:

General Installation Instructions:

Installing pits is a crucial step in ensuring reliable utility access for various infrastructure projects. In this summarized guide, we will provide a comprehensive summary of Telstra’s installation instructions for pits. By following these step-by-step procedures, you can effectively install pits and optimize underground utility access. This is to be used as a general guide, to properly and effectively install pits, please refer to the above links only.


  1. Preparing for Installation: Before commencing the installation process, it is important to gather the necessary tools and materials. These may include the pit itself, a suitable base material (e.g., crushed rock or stabilized sand), backfill material, PVC pipe supports (if required), and cover options. Ensure you have all the necessary safety equipment, such as gloves and protective eyewear, and familiarize yourself with the pit’s specifications and load rating requirements.


  1. Excavation: Begin by marking the pit’s location according to the project requirements and local regulations. Excavate the designated area, ensuring the dimensions accommodate the pit’s size and any additional clearance requirements. Exercise caution when digging to avoid damaging existing utilities and ensure proper shoring or support for trench stability.


  1. Pit Placement and Alignment: Carefully lower the pit into the excavated area, ensuring proper alignment with the surrounding infrastructure. The pit should be securely positioned to support the required vertical loads and withstand compaction from the surrounding soil. Use appropriate techniques and equipment to ensure the pit is level and stable.


  1. Ducting and Conduit Access: Using the built-in cutting guides, adjust the pit’s height if necessary to accommodate the desired ducting and conduit access points. Carefully cut openings in the pit’s sidewalls using recommended tools and techniques. Take care to ensure clean cuts and remove any debris that may hinder the proper installation of ducts or conduits.


  1. Watertightness and Backfilling: To ensure watertightness, inspect the pit for any gaps or openings. Seal any potential entry points using suitable sealing materials or techniques recommended by the manufacturer. Once satisfied with the pit’s integrity, begin backfilling the excavated area with the specified base material, ensuring proper compaction to provide stability and load-bearing capacity. Follow any additional guidelines provided by local authorities or project specifications.


  1. Internal Support and Load Ratings: If required by the project or load rating specifications, install internal PVC pipe supports within the pit. These supports will enhance the pit’s structural integrity and contribute to achieving the desired load rating. Ensure the supports are securely in place and properly aligned with the designated conduits or ducts.


  1. Cover Installation: Select an appropriate cover option, considering factors such as load rating requirements, aesthetics, and accessibility. Follow the manufacturer’s instructions for installing the chosen cover, ensuring a secure and reliable fit. The cover should provide easy access to the pit while effectively protecting the utilities within.


Proper installation of pits is essential for ensuring reliable underground utility access in infrastructure projects. By following Telstra’s installation instructions summarized above, you can confidently install pits and create a robust foundation for your telecommunications, electrical, air, rail, or road projects. Always refer to the original document and consult with relevant authorities for specific guidelines and regulations pertaining to your installation.


AS/NZ 3996