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BLOCKS REQUIRED (LENGTH AND HEIGHT)
Example: A project requires you to build a retainer wall along a street corner, using standard size
blocks of 8 Inch x 16 Inch size. (Default block size assumes block area size of 128 Square Inches).
The long side of the retaining wall is 24 Feet, and the shorter side is 10 Feet 6 Inches. The client
wants the wall to be built 5 Feet high. In order to build the wall, how many blocks do you need,
including extra material, assuming a 2% allowance for waste?
KEY INPUT & DISPLAY
0
1. When working with multiple wall legnths, you must rst calculator the total lenght:
B--AR 128.
SQ Inch
34
Feet
6
Inch
HGTH 5
Feet
0
Inch
2. Then enter the height of the wall:
LNTH 34
Feet
6
Inch
BLKS 194.0625
3.Calculate the number of blocks required:
197.94375
STORED
(198 Blocks)
4. Add 2% for waste allowance:
(195 Blocks)
Height
5
Feet
On/C On/C
(Blk Size)
Length
Feet Inch
ConvRcl
4
612 0
=
+
4
Feet
On/C
Conv Length
+
1 0
%
BLOCKS REQUIRED (AREA)
Example: You are building a wall that measures 10 Feet tall and 25 Feet long, giving a surface area of
250 Square Feet. Assuming you are using standard size bricks, and factoring in a waste allowance of
2% for extra materials, determine how many bricks you need for this project.
KEY INPUT & DISPLAY
0
250
SQ Feet
BLKS 281.25
286.875
(287 Bricks)
On/C On/C
(Blocks)
Length
%
Feet
Conv
52
0
+
Feet
2
This calculator can nd the number of blocks based required for a single layer based on the entered length or
perimeter and the stored block length size. (16 Inches by default)
See Next Page for Examples of Length and Perimeter Calculations
If the stored block length is not 16 Inches, then enter the following (use same method to store custom length):
B-LN 16
Inch
STORED
(Blk Size)
Inch
4
6
1
Stor