Concrete Slabs Northern Beaches

We provide concrete slabs of all sizes, tailored to fit any type of structure you’re planning—whether it’s a shed or carport. Each slab is designed for durability and strength, ensuring it supports your project perfectly. Our concrete slabs are ideal for a variety of applications, including:

• Shed slabs
• Carport or garage slabs
• Extensions
• Granny flats/bungalows
• Slabs for parking a caravan

Whatever your needs, we guarantee a premium-quality slab built to last.

Yes, a solid concrete base for a shed is essential for a durable, long-lasting structure. It provides the foundation that supports the whole shed, helping prevent shifting or sinking. The slab’s thickness depends on what you plan to store in the shed, and larger sheds for vehicles or heavy machinery need thicker reinforced concrete. Without a solid foundation, a shed can shift or sink over time.

While standard plain concrete is commonly used for slabs that aren’t highly visible, we also offer decorative finishes for exposed areas like carports. Our range includes:

• Plain concrete: ideal for hidden or utilitarian surfaces.
• Coloured concrete: adds a splash of colour to your outdoor space and enhances your property’s look.
• Exposed aggregate concrete: reveals the natural stones within the concrete for a stylish, textured finish, perfect for concrete driveways or carports.

These finishes let you customise the appearance of your slab to suit your space.

The required thickness depends on its intended use. For a shed pad or other lightweight structures like a patio, a typical slab is around 100mm thick. For a garage, driveway or commercial structure that needs to carry heavier loads, a thicker slab, usually 150mm or more, may be needed. Soil conditions and the weight of the structure or vehicles also influence the thickness. We’ll assess your project’s requirements to get the right thickness for long-lasting use.

Concrete slabs begin to set within 24-48 hours, allowing for light foot traffic during that time. However, full curing takes up to 28 days, during which the concrete continues to gain strength. For heavy use, like parking vehicles on a driveway or installing large structures, it’s best to wait the full curing period. Proper curing ensures your slab reaches maximum strength and durability, reducing the risk of cracking or damage.

Yes, we can install concrete slabs on uneven ground by preparing and levelling the site first. This involves grading or compacting the soil and, where needed, using additional formwork to create a stable base. Good site preparation is essential to keep the slab even and stable, whatever the original terrain. Whether your site has a slope or uneven areas, we’ll make sure the slab is poured on a solid, level foundation.

The coastal weather in the Northern Beaches, including high humidity, salt air, and frequent rain, can impact concrete slabs if they’re not installed or maintained properly. Salt can accelerate wear and corrosion, while moisture may seep into unsealed concrete, causing cracks or damage over time. To combat these effects, we use high-quality materials and proper sealing techniques to protect your slab from the elements. Regular maintenance, such as resealing, also helps to ensure your slab withstands the coastal climate for years to come.