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# Concrete Slabs - Volume Estimates

## Estimate required concrete volume per sq. ft.

Required concrete is in general calculated in cubic yards (cy).

v =  0.0031 l w t                               (1)

where

v = required concrete - (cy, cu. yards)

l = slab length (ft)

w = slab width (ft)

t = slab depth (in)

• 1 cubic yard = 27 cubic feet
• 1 ft = 12 in

### Slab Concrete Volume

Concrete Slabs - Volume Estimates
Depth
(in)
Volume
(cy/sq.ft.)
2 0.006
4 0.012
6 0.019
8 0.024
10 0.031
• 1 in (inch) = 25.4 mm = 2.54 cm = 0.0254 m
• 1 yd3 = 0.7646 m3
• 1 ft2 = 0.0929 m2

### Area Covered by Concrete

The table below shows the area (sq.ft.) that 1 cu. yard of concrete will cover for various depths.

Concrete Slabs - Covered Area Estimates
Depth
(in)
Area
(sq.ft.)
2 162
3 108
4 81
5 65
6 54
7 46.3
8 40.5
9 36
10 32.4
11 29.5
12 27

Concrete required for concrete slabs can be estimated below:

## Related Topics

• ### Miscellaneous

Engineering related topics like Beaufort Wind Scale, CE-marking, drawing standards and more.

## Related Documents

• ### ACI - American Concrete Institute

American Concrete Institute.
• ### Concrete - Calculating Cubic Volume

Calculating the concrete volume required for an operation.
• ### Concrete - Water to Cement Ratios

Water vs. cement ratio when mixing concrete.
• ### Concrete Columns

Estimate concrete volume required for concrete columns.
• ### Concrete Footings - Volume

Estimate required concrete footing volume.
• ### Concrete Mixtures

Cement, sand and gravel mixtures.
• ### Concrete Properties

Properties of normal strength Portland cement concrete.
• ### Concrete Slabs - Load Capacities

Load capacity of simply supported concrete slabs.
• ### Concrete Slabs - Required Thickness

Required thickness of concrete slabs.
• ### Concrete Walls - Volume

Estimate concrete wall volume.
• ### Earth Pressure Acting on Basement Walls

Calculate lateral earth pressure acting on basement walls.
• ### Gravel - Cover Area

Gravel aggregate covering area.
• ### Masonry Blocks - Dimensions

Concrete Masonry Unit Blocks (CMU) - dimensions.
• ### Rebar - Metric Reinforcing Bar

Reinforcing bar - European metric dimensions.
• ### Rebar - U.S. Imperial Reinforcing Bar

U.S. imperial dimensions of rebar
• ### Rebars - Weights

Weights of rebar rods - size ranging 1/4.

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## Citation

• The Engineering ToolBox (2010). Concrete Slabs - Volume Estimates. [online] Available at: https://www.engineeringtoolbox.com/concrete-volume-slab-d_1702.html [Accessed Day Month Year].

Modify the access date according your visit.

4.19.9

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