Answer

Estimated Concrete Volume

5.833 cubic yards

157.5 cubic feet

Estimated Weight of Concrete

## 10.47 tons

Covering 315 sq. ft. at 6" depthChange dimensions

Optional 10% extra concrete

for waste allowance

10% = 0.58 cubic yards

Total Concrete with 10% = 6.42 cubic yards

for waste allowance

10% = 0.58 cubic yards

Total Concrete with 10% = 6.42 cubic yards

## Order Size

This order size is considered

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

350 | 60lb Concrete bags |

262 | 80lb Concrete bags |

78.8 | Small wheelbarrow loads |

39.4 | Large wheelbarrow loads |

## Concrete Truck for 35'x9' x6"

58%

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

## Cost Estimate for 35'x9' 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 315 sq ft at a depth of 6", the estimated cost is

**$917.00****$917.00**

for 262 x 80lb bags

## Truck Cost Estimate

Ready-mixed concrete costs on average $108.22 per cubic yard delivered. Using a concrete truck to cover 315 sq ft at a depth of 6", the estimated cost is

4.2 x $17.00 = $71.40

$631.28 + $71.40 =

*6 inch pours and under.

**Cost assumes subbase and general prep is done.

**$631.28**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.

4.2 x $17.00 = $71.40

$631.28 + $71.40 =

**$702.68****$702.68**

### Pros Do Everything*

$1,575.00 | $5.00 sq ft Low End** |

$1,890.00 | $6.00 sq ft |

$2,205.00 | $7.00 sq ft |

$2,520.00 | $8.00 sq ft |

$3,307.50 | $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 35x9 area at 6 inches deep, you would need approximately **8.28 tons** or **5.83 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 **315 sq ft area**, this may roughly cost **$176.40** for wire mesh, **$945.00** for thicker wire rebar mesh and **$40.95** for fiber mesh.

How to Calculate Concrete Amount for 35x9 x6"

35 * 9 = 315 sq ft

6 / 12 = 0.5 ft depth

315 * 0.5 = 157.5 cu ft

157.5 / 27 = 5.8333333333333

= 5.833 cu/yd

How to Calculate Concrete Weight

5.8333333333333 * 3590 = 20941.67 lbs

Density of concrete used 2130 kg/m

6 / 12 = 0.5 ft depth

315 * 0.5 = 157.5 cu ft

157.5 / 27 = 5.8333333333333

= 5.833 cu/yd

How to Calculate Concrete Weight

5.8333333333333 * 3590 = 20941.67 lbs

Density of concrete used 2130 kg/m

^{3}or 133 lbs/ft^{3}.## 35 ft x 9 ft x 6" Concrete Summary

**How much concrete do I need for an area of 35 ft x 9 ft x 6" depth?**5.833 cu. yds.

**How many concrete bags would I need for a 35 ft x 9 ft x 6" slab?**262 x 80lb Concrete bags.

**How much does it cost to pour a 35'x9' x6" slab?**Ready-mix costs approx $702.68.

**How much does it cost to hire a contractor to concrete a 35'x9' x6" slab?**A pro costs between $1,575.00 and $3,307.50.

**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:**35 ft x 9 ft x 6", 35x9x6, 315 sq. ft., 35 x 9, 35x9, 35x9 x6", 35'

*x*9'

*x*6", 35'x9' 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.