Concrete Column Calculator
Column
Diameter =
Height =
Quantity = 1
Waste = 10
Concrete =
Vertical Rebar
Pieces/Column =
Length = 240
Lap =
Cover =
Size =
#Pieces =
Weight =
Rebar Tie
Length = 240
Wrap Length =
Spacing =
Size =
#Pieces =
Weight =
Help
Estimate the total volume of concrete needed to pour a column (cylinder shape) and rebar needed for the installation.
[https://infinitysw.s3.amazonaws.com/cengage/column1.png]
Column
-Diameter: Diameter of the column.
-Height: Height of the column.
-Quantity: Number of columns this same size.
-Waste: Percent to add to the exact quantity to cover any waste.
-Concrete: Total volume needed for this column.
[https://infinitysw.s3.amazonaws.com/cengage/column2.png]
[https://infinitysw.s3.amazonaws.com/cengage/column3.png]
Vertical Rebar
-Pieces/Column: Number of rebar pieces to be installed in each column.
-Length: Length of each rebar to be placed in this installation.
-Lap: Amount one piece of rebar will overlap another piece. This is usually specified by an Engineer on the construction documents
-Cover: Space between the end of the rebar and the surface of the concrete. Usually specified on the plans.
-Size: Rebar size.
-#Pieces: Total number of pieces.
-Weight [lbs]: Total weight of rebar.
Rebar Tie
-Length: Length of each rebar tie.
-Wrap Length: Length of the tie that wraps around the vertical rebars.
-Spacing: On-center spacing of the ties.
-Size: Rebar size.
-#Pieces: Number of rebar ties needed.
-Weight [lbs]: Total weight of rebar tie.
Examples
Estimate the materials to be used for constructing 10 columns that are each 50ft 8in in height, 5ft 6in in diameter. Each column will have 12 pieces of #5 rebar tied with #3 bar, 4ft in length. The cover for the columns is 6in and the bars will be tied every 5ft. Standard 20ft length rebar will be purchased for both vertical bars and the tie materials.
Column
-Diameter: 5ft 6in
-Height: 50ft 8in
-Quantity: 10
-Waste: 0%
-Concrete: 445.61yds³
Vertical Rebar
-Pieces/Column: 12
-Length: 20ft each
-Lap: 1ft
-Cover: 6in
-Size: #5
-#Pieces: 317
-Weight: 6610.42lb
Rebar Tie
-Length: 20ft each
-Wrap Length: 4ft
-Spacing: 5ft o.c.
-Size: #4
-#Pieces: 22
-Weight: 29.392lb
Keywords
Diameter
Height
Quantity
Waste
Concrete
Pieces/Column
Length
Lap
Cover
Size
#Pieces
Weight
Length
Wrap Length
Spacing
Size
#Pieces
Weight
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