Is Gap 20 Aggregate Good for Driveways in Auckland Conditions?
When planning a driveway in Auckland, the material beneath the surface matters more than most people realise. With regular rainfall, mixed soil types, and daily vehicle use, the long-term performance of a driveway depends heavily on the base layer. For most residential projects, Gap 20 aggregate is a proven and dependable option for Auckland conditions, provided it is installed correctly and matched to the site. What Gap 20 aggregate is and how it works under a driveway Gap 20 aggregate is a 20mm gap-graded crushed stone used for structural base layers. It compacts tightly while still allowing water to move through the base, which helps prevent moisture-related failure. This balance is why Gap 20 Aggregates Auckland is widely used beneath concrete, pavers, and other driveway finishes. Rather than sitting on soft ground, the driveway surface is supported by a stable, well-draining foundation. Why Auckland soil and climate affect driveway performance Auckland soils often contain clay, ...