Enter the information below and press Estimate. NOTE: Enter numbers only.
Length of Slab:
Width of Slab:
Total Square Footage:
Rebar Spacing (o.c.):
Linear Feet of Footing:
# of Chairs Required:
If rebar spacing is greater than 12", place chair at every rebar crossing.
If rebar spacing is 12" or less, place chair at every other rebar crossing.