Volume Calculator
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How to estimate your concrete needs

To calculate the amount of concrete required, you need three measurements:

  1. Length — the length of the surface to cover (in metres)
  2. Width — the width of the surface to cover (in metres)
  3. Thickness — the desired slab thickness (in centimetres)

The formula is straightforward: Length × Width × Thickness = Volume in m³. We recommend adding 5 to 10% extra concrete to account for spillage and uneven surfaces.

Frequently asked questions about concrete calculation

How do I calculate the amount of concrete in m³?

Calculating concrete in m³ is simple: multiply the length by the width by the thickness of your surface (in meters). For example, a slab of 5 m × 4 m × 0.10 m = 2 m³. Always add 5 to 10% for waste.

How much concrete for a 10x10 foot slab?

A 10 × 10 foot (3.05 m × 3.05 m) slab with a standard 4-inch (10 cm) thickness requires approximately 0.93 m³ of concrete. Plan for about 1 m³ with the safety margin.

What is the price of concrete per m³ in Quebec?

The price of ready-mix concrete in Quebec varies depending on the type of concrete, the volume ordered, and the delivery distance. Contact us at (514) 954-9140 for an exact price tailored to your project.

How many bags of concrete for 1 m³?

You need approximately 56 bags of 30 kg or 40 bags of 40 kg to make 1 m³ of concrete. For projects over 1 m³, ready-mix concrete delivered by truck is more economical and practical.

How do I order ready-mix concrete?

Call us at (514) 954-9140 or fill out our contact form. Provide your project type, dimensions, and desired date. We'll calculate the exact quantity and schedule the delivery.

Need help with your estimate?

Our team can calculate your concrete needs and provide a detailed quote at no charge.