Pole Barn Post Embedment Depth & Uplift Calculator
Calculate IBC 1807.3 non-constrained and constrained post hole depths, wind overturning moment, concrete footing pad thickness, and uplift resistance for post-frame buildings.
Building Dimensions & Wind Load
ft
Typical: 8, 10, or 12 ft bays.
ft
Finished grade to bottom of truss.
ft
MPH
ASCE 7-22 3-second gust.
Foundation & Soil Properties
in
Hole width transfers load to soil.
in
in
Poured cookie or precast disc.
Structural Foundation Status
IBC 1807.3 COMPLIANT
Total Hole Depth to Dig
5.2 ft
62 inches (including 8" pad)
Governing Design Criterion
Wind Overturning
Exceeds 36" local frost depth
Lateral Wind Shear Force
1,820 lbs
13,650 ft-lbs overturning moment
Net Wind Uplift Force
2,160 lbs
1.82x Safety Factor (Safe)
Concrete & Hole Excavation Takeoff (Per Post)
Excavation Volume:
9.2 cu ft (0.34 cu yd)
Footing Pad Concrete:
1.18 cu ft (2.1 bags of 80 lb)
Uplift Collar Concrete (if poured):
1.77 cu ft (3.1 bags of 80 lb)
Total Post Length Required:
19.0 ft (Order 20 ft stock)
IBC 1807.3 & ASAE EP486 Post Foundation Standards
Engineering Code
For nonconstrained posts without a structural concrete floor, embedment depth must resist overturning moments solely through lateral soil passive resistance. In soils with high clay content, a poured concrete collar with cross-rebar pins prevents wind suction from pulling the post upward.