How Much Does Concrete Cost in Australia? (2026 Prices + Calculator)

Concrete is one of the most searched DIY cost questions in Australia, and for good reason. Whether you're pouring a new driveway, laying a garden slab, or building a house foundation, concrete costs can vary dramatically depending on where you are, what strength you need, and whether you go DIY or hire a concretor.

This guide covers 2026 Australian concrete prices across states, the premix bag vs ready-mix decision, and how to calculate exactly how much concrete your project needs. Use our Concrete Calculator to get an instant volume and cost estimate for your project.

Ready-mix concrete prices by state (2026)

Ready-mix concrete (ordered by the cubic metre and delivered by a concrete truck) is priced per cubic metre (m³). Prices vary significantly by state due to cement supply chains, logistics costs, and local competition. The figures below are typical 2026 residential prices for N25 (25 MPa) standard concrete:

Prices are indicative 2026 estimates. Get at least 3 quotes from local suppliers — concrete pricing is competitive and negotiable, especially for larger pours.

Concrete pricing by strength grade (MPa)

Concrete strength is measured in megapascals (MPa). Higher-strength mixes use more cement, which increases cost. In Australia, the most common residential grades are:

For most residential jobs — driveways, house pads, paths, and garden slabs — N25 is the standard specification. Don't underpay for N20 on a driveway that will carry vehicle loads; you'll regret it in 10 years.

Premix bags vs ready-mix: which is cheaper?

Premix bags (DIY)

Premix concrete bags (20kg, available at Bunnings and Mitre 10) are convenient for small jobs. You add water, mix, and pour. No truck required. Current 2026 prices:

• Rapid Set 20kg: ~$7.90–$9.50 per bag (Boral/Hanson at Bunnings)
• General Purpose 20kg: ~$7.50–$8.50 per bag
• 40kg bags (specialty stores): ~$14–$18 per bag, better value per kg

How many bags per cubic metre?

• A 20kg bag yields approximately 9–10 litres of concrete
• 1 cubic metre (m³) = 1,000 litres
• Therefore: ~100–108 × 20kg bags per m³
• At $9/bag: ~$900–$970 in materials per m³

Compare that to ready-mix at $280–$380/m³ — premix bags are 2–3x more expensive per cubic metre in materials alone, before accounting for your labour mixing and pouring them.

When premix bags make sense

• Jobs under 0.3–0.5 m³ (e.g., setting a fence post, small garden edging)
• Access is impossible for a concrete truck
• You can't meet minimum order requirements (most suppliers require 1–3 m³)
• Rapid-setting applications where timing is critical

When to order ready-mix

• Any job over 0.5 m³ (one cubic metre is the sweet spot)
• Driveways, house slabs, and anything requiring reinforcement
• When you want controlled mix design and consistent strength

How much concrete does a driveway cost?

A standard double driveway (6m wide × 10m long × 100mm deep) requires:

• Volume: 6 × 10 × 0.1 = 6 m³
• Add 10% wastage: 6.6 m³
• Ready-mix at $350/m³: ~$2,310 in concrete
• Total installed (with labour, formwork, reinforcement, pump hire): $4,000–$8,000

A single driveway (3m wide × 10m long × 100mm deep):

• Volume: 3 × 10 × 0.1 = 3 m³
• Add 10% wastage: 3.3 m³
• Ready-mix at $350/m³: ~$1,155 in concrete
• Total installed: $2,500–$5,000

Common concrete project cost estimates

Note: "Installed" costs include delivery, labour for formwork and pouring, steel reinforcement mesh, and finishing. DIY-only costs are roughly 40–60% of installed prices, depending on equipment hire.

DIY concrete vs hiring a professional concretor

What DIY concrete involves

A small to medium DIY concrete pour (say, a 3m × 4m slab) involves:

1. Excavation and sub-base preparation (gravel, compaction)
2. Formwork (timber boards to frame the pour)
3. Reinforcement (mesh or rebar placement)
4. Ordering and receiving the ready-mix truck
5. Screeding and levelling while it's still workable (typically 60–90 minutes)
6. Finishing and curing (wet hessian, plastic sheeting, or curing compound)

Concrete does not wait. Once the truck arrives, you have a hard deadline before the mix starts to set. DIY pours require at least 2–3 experienced helpers. Mistakes are expensive and permanent.

When to hire a concretor

• Any job over 4–5 m³
• Structural applications (house foundations, suspended slabs)
• When specialist finishes are required (exposed aggregate, stencil, polished)
• When access is tight or equipment like concrete pumps are needed
• When you don't have enough helpers — this is the biggest DIY failure mode

Labour costs for professional concretors in Australia (2026)

• Standard pour and finish: $60–$90 per m² (including all labour)
• Exposed aggregate finish: $80–$120 per m²
• Stencil/pattern concrete: $100–$150 per m²
• Polished concrete (internal): $80–$150 per m²
• Call-out minimum (most jobs): $500–$1,000

Additional costs to budget for

The concrete itself is often 30–50% of total project cost. Don't forget:

• Pump hire: $400–$800 if the truck can't reach the pour area directly
• Formwork timber: ~$200–$400 for a typical driveway
• Steel reinforcement mesh (SL72): ~$25–$40 per sheet (6m × 2.4m); driveways need one layer, slabs may need two
• Concrete saw hire (for control joints): ~$80–$150/day from Kennards or Total Tools
• Curing compound or plastic sheeting
• Short load charge: Many suppliers add $100–$300 for orders under 3 m³
• Saturday delivery surcharge: $50–$150 extra

How to use the SmartKoala Concrete Calculator

Our Concrete Calculator calculates the exact volume of concrete your project needs, then estimates material cost based on your state and chosen concrete grade. To use it:

1. Enter the length, width, and thickness of your slab or area
2. Select your state to get local pricing
3. Choose your concrete grade (N20, N25, or N32)
4. Toggle between premix bags and ready-mix to compare options
5. The calculator adds a 10% wastage buffer automatically

Always add a 10% volume buffer to your order to account for uneven subgrade, spillage, and slight miscalculation. Running short mid-pour is the worst outcome — you cannot join fresh and hardened concrete without creating a cold joint weakness.