Skip to main content

learn.howToCalculate

learn.whatIsHeading

A drainage slope calculator determines the required grade for surface drainage and French drain systems. The minimum slope for surface drainage is 1–2% (1–2 inches per 10 feet); French drains require at least 1% slope (1/8 inch per foot). Inadequate slope causes standing water and foundation problems.

चरण-दर-चरण मार्गदर्शिका

  1. 1Input base values
  2. 2System computes results

हल किए गए उदाहरण

इनपुट
Enter the required values
परिणाम
Result computed by the formula

सामान्य गलतियां जिनसे बचना है

  • Precision loss
  • Ignoring variables

अक्सर पूछे जाने वाले प्रश्न

What does this calculator do?

Input base values

How do I use this calculator?

System computes results

सेटिंग्स