Temporary Site Fence
Overturning & sliding assessment against wind
Inputs
≈ Gentle breeze
Affects the wind force coefficient Cf
No signs tied to this panel. Solid signs would block wind and add load — switch to “Add signs” to include them.
Self-weight, one panel
× 1 foot per panel (shared at joints)
Counterweights per foot (1 foot per panel, shared at joints)
No bracing. The panel resists wind on its own feet and ballast alone.
Where the panel post sits on the foot
Edge: post in the front holes (lever = foot length minus front offset).
Friction coefficient μ = 0.5
Sets a typical weight per foot
Stabilising lever arm (wind direction)
Plan dimension along the fence
Typ. 1.2 – 1.5
Showing Annual (year-round avg) mean speeds. Click a bar to use that town's speed for the selected season.
Worst case (winter) for Inverness: 7.2 m/s — use this if the fencing stays erected across several seasons.
Annual mean wind speeds (typical UK values), scaled by season. For stability checks, consider applying a safety margin above the seasonal average.
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Assessment
Overturning
2.38× FoS
Stabilising vs overturning: 88 N·m
Target ≥ 1.50
Sliding
2.29× FoS
Friction vs wind: 83 N·m
Target ≥ 1.50
Wind speed
4.8m/s
Wind pressure
14Pa
Face area
7.00m²
Wind force
64N
Total weight
294N
30.0 kg · feet 16.0
Friction resistance
147N
Required added ballast to reach target FoS
0.0 kg / foot
Current configuration meets the target factor of safety.
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