Total Concrete Required
0 m³
Including wastage allowance
Instant concrete volume, bag count & cost estimates for Campbelltown NSW projects
Use our free Campbelltown Concrete Calculator to estimate concrete for slabs, driveways, footings, columns and steps. Accurate 2026 Campbelltown NSW pricing — no sign-up required.
Trusted by builders, concreters and owner-builders across Campbelltown City Council and South West Sydney
Calculate exact concrete volumes in cubic metres (m³) for slabs, driveways, footings, columns and steps. Our Campbelltown Concrete Calculator uses AS 3600-compliant formulas so you always order the correct quantity — no expensive over-ordering and no dangerous shortfalls on your Campbelltown or Macarthur region project.
Get real 2026 cost estimates based on Campbelltown and South West Sydney ready-mix pricing. Compare delivery versus bagged concrete from Bunnings Campbelltown or Mitre 10, understand minimum truck load requirements, and get labour rate guidance specific to the Macarthur construction market.
Designed for Campbelltown's conditions including reactive clay soils common across Macarthur suburbs, hot summer concreting guidance, and Campbelltown City Council permit requirements. Supports N20 to N40 concrete grades with correct wastage factors and bag count for all common sizes.
Select your project type, enter dimensions, choose grade and get instant results
Campbelltown is one of Sydney's fastest-growing outer metropolitan areas, with booming residential development across suburbs like Leumeah, Minto, Ingleburn, Eagle Vale, Raby and Macquarie Fields. Concrete is at the centre of every project — from new house slabs and driveway replacements to retaining walls and shed footings. Our Campbelltown Concrete Calculator is built for local conditions, using AS 3600-compliant formulas and accurate 2026 South West Sydney pricing so you get reliable estimates every time.
N20 (20 MPa): Garden paths, letterbox pads, non-structural piers
N25 (25 MPa): Driveways, residential slabs, strip footings — most popular in Campbelltown
N32 (32 MPa): Garage floors, retaining wall footings, pool surrounds
N40 (40 MPa): Commercial slabs, high-load industrial structures
75–100mm: Footpaths, garden paving, alfresco slabs
100mm: Standard residential slab — most common in Campbelltown LGA
125–150mm: Driveways, carports, heavy-use areas
200mm+: Garage floors with heavy vehicles, commercial hardstand
Note: Reactive clay in many Campbelltown suburbs may require waffle pod slab — engineer to specify
Ready-Mix Delivered: $205–$255 per m³ (Campbelltown & South West Sydney)
Mini-Mix Trucks: From 0.2 m³ — ideal for small Campbelltown jobs
20kg Bagged: ~$8–$12 per bag (Bunnings Campbelltown or Mitre 10)
Labour Rate: $60–$90 per m² (pour, finish & cure)
Delivery Surcharge: $150–$380 depending on suburb and load size
All calculations use standard volumetric formulas aligned with AS 3600 Concrete Structures — the governing Australian Standard for all structural concrete in NSW. Results are in cubic metres (m³), the unit used by every ready-mix supplier in Campbelltown and South West Sydney. Also see our Access Road Concrete Calculator for Campbelltown driveway and road-base projects.
Campbelltown Example: 6m × 5.5m driveway at 125mm thick:
Campbelltown Example: 12m run, 0.45m wide, 0.35m deep:
Campbelltown Example: 4 round piers, 300mm dia × 1.0m deep:
Campbelltown Example: 4 steps, 175mm rise, 300mm run, 1.2m wide:
Campbelltown Tip: For any job over 0.5 m³, ready-mix delivery is far cheaper than bagged concrete from a local hardware store.
Choosing the right grade ensures your Campbelltown project meets AS 3600 requirements and withstands the local environment. Major suppliers serving Campbelltown and South West Sydney include Hanson Concrete, Holcim / Boral, Readymix and local independent batching plants in the Macarthur region.
| Concrete Grade | Strength | Common Campbelltown Applications | Ready-Mix Price (per m³) | 20kg Bags per m³ | Labour (per m²) |
|---|---|---|---|---|---|
| N20 | 20 MPa | Garden paths, small pads, non-structural piers | $205 – $220 | ~111 bags | $60 – $72 |
| N25 | 25 MPa | Driveways, house slabs, strip footings, alfresco | $215 – $238 | ~111 bags | $65 – $85 |
| N32 | 32 MPa | Garage floors, pool surrounds, structural footings | $228 – $248 | ~111 bags | $70 – $88 |
| N40 | 40 MPa | Commercial slabs, civil & industrial works | $242 – $255 | ~111 bags | $78 – $90 |
Slab/Driveway: Flat horizontal surface — most common Campbelltown project
Footing/Strip: Below-ground foundations for walls, fences or extensions
Column/Pier: Vertical supports for decks, carports or pergolas
Steps: Concrete entry stairs or garden steps common across Macarthur suburbs
Measure carefully: Use a tape measure and record all dimensions in metres
Slab thickness: 100mm standard for Campbelltown residential; 125mm for driveways
Multiple sections: Calculate each separately and add the volumes together
Subtract openings: Deduct any drainage pits, garden beds or steps from slab area
N25: Correct for most Campbelltown driveways, slabs and standard footings
10% wastage: Standard for flat slabs with experienced Macarthur concreters
15–20%: Use for irregular shapes, sloping sites or first-time DIY pours
Never order less: Cold joints from running short are a serious structural defect
m³ total: Use this figure when calling Campbelltown suppliers for a ready-mix quote
Bag count: Use for small DIY repairs and post holes under 0.5 m³
Truck minimum: Most ready-mix trucks have a 1.0 m³ minimum; mini-mix from 0.2 m³
Budget: Add delivery ($150–$380), pump hire if needed, and labour separately
⚠ Campbelltown Soil Alert: Much of the Campbelltown LGA sits on reactive clay soils (Class M, H1 and H2 sites), particularly in suburbs like Minto, Eagle Vale, Raby, Kearns and Bradbury. On reactive clay sites, your structural engineer will likely specify a waffle pod slab, deeper footing depths or additional reinforcement. Always obtain a geotechnical soil classification report before finalising your concrete design. This is a critical step — not an optional one — for any new house slab or extension footing in Campbelltown.
📌 Campbelltown Local Tip: For jobs over 2 m³ in Campbelltown, ready-mix delivery from Hanson Concrete (Minto or Smeaton Grange), Holcim / Boral (Campbelltown region) or local Macarthur batching plants is dramatically cheaper than buying bagged concrete. Book your pour 3–5 days ahead — South West Sydney is an extremely active construction zone. Avoid afternoon summer pours above 32°C; always use a retarder admixture or schedule an early morning start in December–February.
📖 NSW Compliance Note: All structural concrete in Campbelltown must comply with AS 3600 Concrete Structures. New driveway crossings require a permit from Campbelltown City Council. Structural slabs, retaining walls over 600mm and commercial buildings require a CDC or DA with engineering certification. Check the NSW Planning Portal to confirm your project's approval pathway before commencing any significant concrete work.
Check driveway crossing permits, development approval requirements and flood overlays for your Campbelltown property before starting any concrete work.
Visit CCC Website →Australian Standard for Concrete Structures — the governing document for all structural concrete specification and design in NSW and Australia-wide.
Standards Australia →Apply for CDC or DA approval for larger concrete projects. Check if your Campbelltown property has flood, heritage or other overlays before starting.
NSW Planning Portal →Technical guidance, mix design standards and hot-weather concreting best practice guides relevant to Campbelltown and South West Sydney conditions.
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