Footing Calculator
Rectangular pad footing design per ACI 318-14 and ASCE 7-16. 10 structural checks with auto-sizing and stepped math output.
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Applied Loads
lbs
lbs
lbs
lbs
Column
in
in
Eccentricity
in — column offset from footing center
in — column offset from footing center
Footing Dimensions
in
in
in
Soil Bearing
in
pcf
Materials & Reinforcement
psi
psi
pcf
in
B-Direction Rebar (bottom group)
L-Direction Rebar (upper group)
Auto-Size (optional)
Lock to a specific bar size
Per direction
Preliminary design aid per ACI 318-14: one-way shear §22.5.5.1, two-way shear §22.6.5.2, bearing §22.8.3.2, flexure §22.2, reinforcement §7.6/§24.4.3.2, development length §25.4.2.3, plain concrete §14.5.2.1. Load combinations per ASCE 7-16 §2.3/§2.4. Presumptive bearing per IBC Table 1806.2. Multi-layer rebar clear spacing per ACI §25.2.2 (1" min between layers). All results must be verified by a licensed Professional Engineer. Use of this tool constitutes acceptance of the terms presented on entry. Green Stories LLC is a building design and consulting firm.