How do I calculate concrete for a slab in Australia?

To calculate concrete for a slab: multiply length × width × thickness (in metres). For example, a 10m × 5m slab at 100mm thick = 10 × 5 × 0.1 = 5 cubic metres. Add 5-10% waste. Our calculator includes labour, equipment, and material costs with Australian rates and GST.

How much does concrete cost per cubic metre in Australia?

Concrete typically costs $200-$350 per cubic metre in Australia depending on the MPa strength and location. Standard 20MPa costs around $220/m³, 25MPa costs $240/m³, and 32MPa costs $260/m³. Delivery fees ($150-$250) apply. Our calculator includes all costs plus labour and equipment.

What is included in a concrete quote?

A professional concrete quote should include: concrete volume and cost, delivery fees, labour costs, equipment hire (screed, float, mixer), site preparation, reinforcement if needed, finishing costs, waste allowance (5-10%), profit margin, and GST (10%). Our calculator includes all these components for accurate pricing.

How do concreters avoid underquoting jobs?

Concreters avoid underquoting by accurately calculating: concrete volume + waste (5-10%), all material costs, realistic labour hours, equipment hire, site access challenges, and adding appropriate profit margin (20-30%). Always include GST and get detailed site measurements. Use a professional calculator to ensure nothing is missed.

What profit margin should concreters charge?

Australian concreters typically charge 20-35% profit margin depending on job complexity. Simple slabs: 20-25%, complex jobs with difficult access: 30-35%, stairs and detailed work: 30-40%. Never go below 20% or you risk losing money on unexpected costs and delays.

How many cubic metres of concrete per hour can be laid?

A professional concreting crew can typically lay 8-12 cubic metres per hour for simple slabs, 5-8m³/hour for complex slabs with obstacles, and 3-6m³/hour for footings or detailed work. Factors include crew size, site access, weather, and finishing requirements.

Australian Concrete Quote Calculator | Stop Losing Money on Quotes

Name: Concreter's Edge - Australian Concrete Quote Calculator
Rating: 4.9 (127 reviews)
Author: Concreter's Edge

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