Footings Calculator
Footing
Length =
Width =
Depth =
Rebar
#Rebar =
Lap =
Chair =
Size =
Length =
Results
Concrete =
Rebar Pieces =
Rebar Weight =
Rebar Chairs =
rebar_form =
Help
Estimates the total volume of concrete and rebar needed for a footing installation.
[https://infinitysw.s3.amazonaws.com/cengage/EarthFormedFootings1.png]
[https://infinitysw.s3.amazonaws.com/cengage/EarthFormedFootings2.png]
Rows
Footing
-Length: Total length of the footing.
-Width: Width of the footing.
-Depth: Depth of the footing.
Rebar
-#Rebar: Pieces of rebar required throughout the footing (see image).
-Lap: Amount one piece of rebar laps the other (see image).
-Chair: Spacing of rebar chairs on-center.
-Size: Size of the rebar that is specified for the installation. This is important to know the total weight of the installed rebar.
-Length: Length of rebar that to be purchased. Lengths vary but are typically 20ft.
-Concrete: Volume of concrete.
-Rebar Pieces: Number of single rebar pieces.
-Rebar Weigh: Total weight of rebar.
-Rebar Chairs: Total number of rebar chairs.
Examples
Estimate the materials that will be needed to install a footing that totals 128ft in length. The width of the footing is 14 inches, the depth of the footing is 16 inches. Three pieces of #5 rebar (purchased in 20ft lengths) will be placed in the footing and lapped 6 inches. They will be installed on chairs placed 6ft on-center.
Footing
-Length: 128ft
-Width: 1ft 2in
-Depth: 1ft 4in
Rebar
-#Rebar: 3
-Lap: 6in
-Chair: 6ft oc
-Size: #5
-Length: 20ft
-Concrete: 7.37yd³
-Rebar Pieces: 20
-Rebar Weight: 417.20lb
-Rebar Chairs: 64
Keywords
Length
Width
Depth
#Rebar
Lap
Chair
Size
Length
Concrete
Rebar Pieces
Rebar Weight
Rebar Chairs
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