Answer

Estimated Concrete Volume

3.13 cubic yards

84.5 cubic feet

Estimated Weight of Concrete

## 5.62 tons

Covering 169 sq. ft. at 6" depthChange dimensions

Optional 10% extra concrete

for waste allowance

10% = 0.31 cubic yards

Total Concrete with 10% = 3.44 cubic yards

for waste allowance

10% = 0.31 cubic yards

Total Concrete with 10% = 3.44 cubic yards

## Order Size

This order size is considered

**Large**### How Many Concrete Bags?*

188 | 60lb Concrete bags |

141 | 80lb Concrete bags |

42.3 | Small wheelbarrow loads |

21.1 | Large wheelbarrow loads |

## Concrete Truck for 13'x13' x6"

31%

**0.31 Concrete Truck Loads**(10 cu/yd Capacity)

## Cost Estimate for 13'x13' x6"

Purchasing ready-mix concrete is by far the easiest way to mix concrete for medium to large projects and can even be used on smaller projects as well. We have provided a cost comparison between ready mix and DIY concrete premix bags to give you a rough ballpark estimate.

## Bag Cost Estimate

Pre-mixed concrete bags cost on average $3.50 per 80lb bag. Using pre-mixed bags to cover 169 sq ft at a depth of 6", the estimated cost is

**$493.50****$493.50**

for 141 x 80lb bags

## Truck Cost Estimate

Ready-mixed concrete costs on average $108.22 per cubic yard delivered. Using a concrete truck to cover 169 sq ft at a depth of 6", the estimated cost is

6.9 x $17.00 = $117.30

$338.69 + $117.30 =

*6 inch pours and under.

**Cost assumes subbase and general prep is done.

**$338.69**Concrete trucks may also charge a **"short load"** fee for partially filled loads. Short load fees are charged at about $17 for every yard not used on the truck.

6.9 x $17.00 = $117.30

$338.69 + $117.30 =

**$455.99****$455.99**

### Pros Do Everything*

$845.00 | $5.00 sq ft Low End** |

$1,014.00 | $6.00 sq ft |

$1,183.00 | $7.00 sq ft |

$1,352.00 | $8.00 sq ft |

$1,774.50 | $10.50 sq ft High End*** |

*6 inch pours and under.

**Cost assumes subbase and general prep is done.

## Concrete Extras

A well-compacted

**subbase**provides a strong foundation for concrete to lay on. We recommend you contact your nearest concrete supplier for their recommendations on whether you need a subbase, base depth, and rock type.With a brief look, a 13x13 area at 6 inches deep, you would need approximately **4.44 tons** or **3.13 cubic yards of gravel**.

**Concrete reinforcing** is also recommended in high traffic areas and medium to large areas. **Wire mesh** on average costs **$0.56 per sq ft** and **fiber mesh** costs **$0.13 per sq ft**.

So for your **169 sq ft area**, this may roughly cost **$94.64** for wire mesh, **$507.00** for thicker wire rebar mesh and **$21.97** for fiber mesh.

How to Calculate Concrete Amount for 13x13 x6"

13 * 13 = 169 sq ft

6 / 12 = 0.5 ft depth

169 * 0.5 = 84.5 cu ft

84.5 / 27 = 3.1296296296296

= 3.13 cu/yd

How to Calculate Concrete Weight

3.1296296296296 * 3590 = 11235.37 lbs

Density of concrete used 2130 kg/m

6 / 12 = 0.5 ft depth

169 * 0.5 = 84.5 cu ft

84.5 / 27 = 3.1296296296296

= 3.13 cu/yd

How to Calculate Concrete Weight

3.1296296296296 * 3590 = 11235.37 lbs

Density of concrete used 2130 kg/m

^{3}or 133 lbs/ft^{3}.## 13 ft x 13 ft x 6" Concrete Summary

**How much concrete do I need for an area of 13 ft x 13 ft x 6" depth?**3.13 cu. yds.

**How many concrete bags would I need for a 13 ft x 13 ft x 6" slab?**141 x 80lb Concrete bags.

**How much does it cost to pour a 13'x13' x6" slab?**Ready-mix costs approx $455.99.

**How much does it cost to hire a contractor to concrete a 13'x13' x6" slab?**A pro costs between $845.00 and $1,774.50.

**How do you calculate concrete volume?**Formula ((width x length) x (depth in inches / 12)) / 27 = total cubic yards. See our how to here

**This Page is Calculated for the Following:**13 ft x 13 ft x 6", 13x13x6, 169 sq. ft., 13 x 13, 13x13, 13x13 x6", 13'

*x*13'

*x*6", 13'x13' x6"

This

**Concrete**calculator can be used for a slab, floor, garage, block, wall, driveway, patio, countertop, footings, foundation, pool or basement, and most rectangular areas.