G5 Filling (Engineered Sub-Base) – Road Spec Material

Build It Once, Build It Right.

G5 Filling is not just “dirt.” It is a carefully graded material containing a specific mix of fines (soil) and aggregate (small stones). This mix is designed to achieve a high compaction density, known in the industry as the G5 standard.

Why You Need G5 Filling:

High Compaction: When wetted and rolled, G5 packs down into a solid, near-impenetrable layer. This provides the structural strength needed to support cars and trucks.
Prevents Sinking: “Normal Filling” is too soft for driveways. Over time, tires will create ruts. G5 creates a stiff platform that distributes weight evenly, keeping your paving level for years.
Road Spec: This is the same class of material used under municipal roads. If it’s good enough for a public street, it’s good enough for your driveway.

Application Guide:

Driveways: The mandatory sub-base layer for any paved driveway.
Parking Areas: Ideal for creating hardstand areas for trailers or caravans.
Foundation Slabs: Often specified by engineers as the fill material under house slabs.

Delivery: We deliver bulk loads of G5 Filling to Pretoria East, servicing civil contractors and residential paving projects

Common Questions:

What is the difference between G5 and Normal Filling? Normal Filling is random earth dug from a hole. It might be soft or sandy. G5 Filling is selected material that meets a specific hardness and rock-ratio standard. It is engineered to hold weight.
Can I use G6 instead? G6 is very similar but slightly lower quality (less strength) than G5. For residential driveways, G5 is the “Gold Standard,” but G6 is often acceptable for lighter traffic.
How do I use it? You cannot just spread it. You must spread it in layers (max 150mm thick), water it, and compact it with a heavy vibrating roller or plate compactor to get the strength.

Disclaimer: At Topsoil Tippers, we strive to ensure that the products you receive match the images and descriptions provided. However, as our materials are sourced from various suppliers, there may be slight variations in color, texture, and composition. Rest assured, we exercise the utmost care to provide products that meet your expectations and are as close to the pictures as possible. Let us help you bring your projects to life with quality products and exceptional service!