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Concrete/Paving
VOLUME OF CONCRETE FOR A DRIVEWAY
Example: Find the volume in Cubic Yards of concrete required for a patio with an area that measures
20 Feet 5 Inches long by 12 Feet 10 Inches wide with a required depth of 4 Inches.
If the cost of concrete is $135 per cubic yard, what is the total cost?
KEY INPUT & DISPLAY
0
1. Multiply the length times the width to nd the area:
20
Feet
5
Inch
12
Feet
10
Inch
3.234739
CU YD
*
2. Multiply times the depth to nd the volume:
262.0139
SQ Feet
$436.
69
3. Multiply times the per Unit Cost to nd the total cost of concrete:
Remember to press to clear entries in between problems.
On/C On/C
*This answer will automatically display in Cubic Yards due to the multiplication of mixed units, unless the
preference setting for volume display has been changed from the default Standard Setting.
FACE BRICKS REQUIRED
Example: You are building a wall measuring 30 Feet long by 6 Feet tall. How many face bricks* are
required for this project, factoring a 3% waste allowance for extra materials?
KEY INPUT & DISPLAY
0
B--AR 21
SQ Feet
1. Store the surface area of the brick as the block size.
LNTH 30
Feet
0
Inch
2.Enter length and height of wall:
HGHT 6
Feet
0
Inch
BLKS 1234.286
3.Find the number of bricks and add a 3% waste allowance:
1271.314
(1272 Blocks)
STORED
*Assume you are working with a face brick size with a surface area of 21 Square Inches)
On/C On/C
Feet Inch
5
1 2
0
=
×
Feet
1
Inch
Inch
4
×
=
×
Conv
05
(Cost)
2
0
1
3
On/C On/C
(Blk Size)
Inch
Stor
412
Inch
Length
Height
Feet
6
3
0
Feet
(Blocks)
Length
%
Conv
3
+
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