To calculate the fence post depth:
\[ FPH = 0.40 \times AGH \]
Where:
Fence post depth refers to the portion of the fence post that is buried underground to ensure stability and support for the fence. The depth is typically a fraction of the height above ground to account for proper anchoring. This depth helps the fence resist wind and other forces that could cause it to lean or topple.
Example 1: If the height above ground is 6 feet:
\[ FPH = 0.40 \times 6 = 2.4 \text{ ft} \]
The fence post depth needed is 2.4 feet.
Example 2: If the height above ground is 10 feet:
\[ FPH = 0.40 \times 10 = 4.0 \text{ ft} \]
The fence post depth needed is 4.0 feet.
