Archives: FAQs

Can I lay my own concrete slab?

For DIY activities use a ready-mix crack-resistant concrete mix. Create a wood frame around the area you want to place concrete. Pour a layer of concrete mix and then add a steel reinforcement balls layer on top. Spray paint around the outside Install the rebar securely in place Tap the sides of the box using …

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What’s the cost of laying a 20×20 slab?

On average, a 20×20 slab costs $2,468. The cost per square foot is between $4 and $8 on average. However, most homeowners spend on average between $5.35 to $6.17 per square foot for both materials and installation. The final cost depends on slabs size, thickness, and any special reinforcement, e.g., wire mesh or rebar.

What are concrete slabs used for?

A concrete slab is a major structural element of modern buildings. Slabs have a thickness of between 100mm and 500mm and are used to construct horizontal surfaces like floors, ceilings and roof decks.

How Thick Should a Concrete Slab Be?

This is dependant on the purpose, but the minimum should be 5cm. If the slab is thicker, this means it will be stronger, so for residential constructions,  we normally go off the minimum of 10cm for a concrete shed or house slab.

How Much Does it Cost to Lay a Concrete Slab?

Similar to laying driveways, this will be affected by the size, width, accessibility and type of the proposed slab. The average cost for a company to do slab work would be around $60 per m2. However this can vary from $50-85/m2 depending on thickness.

How thick should concrete be for a driveway?

4 inches. For a non-reinforced pavement, a thickness of four inches is standard for passenger car driveways. However, for 5 or 6 inches thickness, reinforcement is necessary, and such breadth works well for heavier vehicles.