French Drain Gravel Calculator
Width of Trench (w):
feet
Depth of Trench (d):
feet
Length of Trench (Lt):
feet
Outside Diameter of Perforated Pipe (Do):
Select Pipe Diameter
4.50 inches (114.30 mm)
6.63 inches (168.28 mm)
8.63 inches (219.08 mm)
Effective Length of Perforated Pipe (Lp):
feet
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