Professional-grade calculator for slabs, footings and driveways
Accurate concrete volumes, cement bags, aggregate quantities and 2026 Devonport ready-mix costs. Instant calculations for residential and commercial projects.
Professional concrete calculations for Tasmania construction projects
Calculate exact concrete volumes for slabs, footings, driveways and retaining walls using Devonport ready-mix specifications. Accounts for wastage, shape complexity and local delivery minimums.
Instant 2026 Devonport pricing with ready-mix truck rates, cement bags, aggregate and pump hire costs. Compare N20, N25 and N30 mixes for your specific project requirements.
Select shape and enter dimensions below
Standard residential slab 100mm (4") thick with 20MPa N20 concrete
Concrete quantity calculations determine volume requirements for slabs, footings and structural elements based on dimensions, strength grade and wastage factors. Devonport projects must comply with AS 1379 concrete production and AS 3600 design standards.
N20 General Slab: $160-$180/m³
N25 Footings: $175-$195/m³
N32 Driveway: $190-$210/m³
N40 Commercial: $220-$250/m³
Notes: Prices exclude pump/delivery
Domestic Slab: 100mm (4") N20
Driveway: 120mm (5") N25/N32
Footings: 300-600mm N25
Commercial: 150mm+ N32/N40
Mixer Capacity: 6m³ standard
Min Order: 2m³ Devonport
Delivery: $150 flat
Pump Hire: $200-$450/half day
Devonport concrete calculator uses Australian Standard formulas with local pricing and delivery factors.
Slab: Patios, garages, house slabs
Footing: Strip foundations, retaining walls
Column: Posts, piers, structural columns
Length × Width: Plan dimensions (m)
Depth: Slab 100mm, footings 300mm+
Accuracy: Measure conservatively
N20: Residential slabs/patios
N25: Footings/driveways
N32+: Commercial/heavy vehicles
Total m³: Order quantity with wastage
Truck loads: Delivery planning
Cost range: Budget estimation
| Strength Grade | Applications | Cost/m³ 2026 | Slump |
|---|---|---|---|
| N20 (20 MPa) | House slabs, patios, paths | $160-$180 | 80mm |
| N25 (25 MPa) | Driveways, footings, ramps | $175-$195 | 80-100mm |
| N32 (32 MPa) | Commercial slabs, susp. slabs | $190-$210 | 100mm |
| N40 (40 MPa) | Industrial, heavy vehicles | $220-$250 | 120mm |
| Parameter | Value | Notes |
|---|---|---|
| Truck Capacity | 6m³ standard | A-frame agitator trucks |
| Minimum Order | 2m³ | Devonport metro area |
| Delivery Charge | $150 flat | Within 20km Devonport |
| Pump Hire | $200-$450 | Half day line pump |
| Waiting Time | $80/hour | After free 30 minutes |
Before Pouring Concrete
During Pouring
Tasmanian Weather Considerations
Multiple Shapes: Slabs, footings, columns
Local Pricing: Devonport 2026 rates
AS 1379: Compliance calculations
Truck Planning: Delivery optimization
Owner Builders: DIY slabs/garages
Local Builders: Devonport contractors
Concreters: Material takeoffs
Engineers: Preliminary volumes
Estimate Only: Verify with engineering drawings
Professional Advice: Consult structural engineer
Site Conditions: Actual may vary from calculation
Australian Standard for concrete production and supply. Essential reading for Devonport ready-mix quality control.
View StandardConcrete structures design code. Required for all engineered concrete elements in Tasmania.
View StandardBuilding regulations and concrete specifications for Devonport City Council area.
Council Website