Sand in Coomba Park

The best sand for building a patio or walkway is washed paving sand or coarse river sand. These types of sand compact tightly, creating a stable and level base that supports pavers or slabs over time. Washed sand is free from clay, silt, and organic matter, which means it won't shift or break down easily. A layer of paving sand is spread over a compacted road base or crushed rock foundation, usually about 30–50mm thick, before laying the pavers. After the pavers are installed, fine jointing sand can be swept into the gaps to lock them in place. Avoid beach sand or very fine sand, as these don't provide enough stability and can cause pavers to shift or settle unevenly.

The best soil mix for new garden beds in coastal areas is a rich, organic garden soil blend that improves water retention and adds essential nutrients. Coastal soils are often sandy and fast-draining, meaning they don’t retain moisture or nutrients. A quality garden soil should include compost, organic matter, and a balanced mix of sand and loam to help plants thrive. Adding composted mulch or manure can also boost soil structure and fertility. Choosing a soil blend designed explicitly for coastal conditions helps create a stronger foundation for vegetables, flowers, and native plants, reducing the need for constant watering and fertilising.

Gravel is commonly used to improve drainage around properties by allowing water to flow freely through the soil, preventing pooling and reducing erosion. It’s often placed in drainage trenches, French drains, or around foundations to redirect water away from structures. A layer of coarse gravel, typically around 20mm in size, creates gaps that help water move quickly without compacting the soil. Gravel can be used under topsoil in garden beds or along paths to improve drainage in heavy or clay soils. Proper installation, including geotextile fabric under the gravel, helps prevent the gravel from mixing with the surrounding soil and keeps the system working efficiently over time.