Liner Length Formula:
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The Pond Liner Calculator helps determine the correct size of pond liner needed for your water feature. It calculates the total liner length required based on pond dimensions and desired overlap.
The calculator uses the formula:
Where:
Explanation: The formula accounts for the liner needing to cover the bottom length, both side depths, and overlap on both ends for secure installation.
Details: Correct liner sizing is crucial for preventing leaks, ensuring proper installation, and avoiding costly repairs. Too small of a liner can lead to tearing and water loss.
Tips: Measure your pond's length and depth accurately. Include sufficient overlap (typically 1-2 feet) for securing the liner around the edges. All measurements should be in feet.
Q1: How much overlap should I use?
A: Typically 1-2 feet of overlap is recommended to ensure the liner can be properly secured and anchored around the pond perimeter.
Q2: Should I calculate for width as well?
A: Yes, use the same formula separately for width: Width + 2 × Depth + 2 × Overlap to get the total liner width needed.
Q3: What about irregular shaped ponds?
A: For irregular shapes, use the maximum length and width measurements, and consider adding extra material for complex contours.
Q4: How do I account for shelves or ledges?
A: Measure the deepest point for depth calculation. Shelves may require additional liner material for proper fitting.
Q5: Should I add extra for safety?
A: It's wise to add 5-10% extra material to account for measurement errors and installation adjustments.