How much does a concrete slab cost?

Answer A 60-lb. bag of concrete mix costs between $3 and $10. A standard 3.5-inch thick, 100 square foot concrete slab would require 65 bags to complete. This size slab can cost between $193 and $640 or m... Read More »

Top Q&A For: How much does a concrete slab cost

What is the cost of replacing a slab concrete patio?

A homeowner can expect to pay between $1,000 and $10,000 for a slab concrete patio, depending on its size. A 10x20 project costs $1,000 to $2,000; a 80x20 patio ranges from $4,000 to $6,000; and a ... Read More »

Can I Pour a Concrete Slab Over an Existing Slab?

You can pour more concrete over an existing slab if you do some preparation to the original surface. The problem with adding wet concrete to cured concrete is there will be no adhesion between the ... Read More »

How much concrete is needed to pour a 20x20 concrete slab?

Assuming the slab is three-inches thick, you need 13,320 pounds of dry concrete, or 333 40-pound bags. You can calculate the exact amount for a different depth by calculating the cubic yards of the... Read More »

How much concrete is in a slab?

According to, a slab is defined as a "block consisting of a thick piece of something." Concrete slabs are just that---large, thick blocks. Because of this, the amount of concrete in a... Read More »