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# Concrete Slabs - Volume Estimates

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:

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## Related Documents

### ACI - American Concrete Institute

American Concrete Institute.

### Concrete - Calculating Cubic Volume

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### Concrete Columns

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### Concrete Footings - Volume

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### Concrete Mixtures

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### Concrete Properties

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### Concrete Slabs - Load Capacities

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### 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

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### 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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