Biology & Life Science

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Sod Calculator.

Calculate lawn area and sod rolls from dimensions, roll coverage, and explicit waste allowance.

On-device calculationNo signup
01

Set your values

Results update as you type.

Lawn area: 50 m²

Lawn area

50.000m²
Area with waste: 55 m²

Area with waste

55.000m²
Sod rolls: 55

Sod rolls

55

Enter the coverage printed for your sod roll or slab. No supplier package size, local price, or waste percentage is inferred.

Use Cases

Planning a New Sod Installation

Determine how many rolls of sod to order for a rectangular lawn, including extra for waste, to avoid shortages or overordering.

Example: A 10m x 5m lawn with 2m² rolls and 10% waste needs 28 rolls.

Estimating Sod for a Renovation Project

Quickly calculate the sod quantity needed when replacing an existing lawn, factoring in waste for trimming around obstacles.

Example: For a 20m x 8m area with 1m² rolls and 5% waste, you'll need 168 rolls.

Frequently Asked Questions

How does the Sod Calculator determine the number of rolls needed?
The calculator multiplies lawn length by width to get area, then adds the waste allowance percentage, and divides by the coverage per roll. The result is rounded up to ensure you have enough rolls.
What is a typical waste allowance for sod installation?
A common waste allowance is 5-10% to account for cutting, shaping, and irregularities. The calculator lets you set your own percentage based on your lawn's complexity.
Can I use this calculator for irregularly shaped lawns?
This calculator assumes a rectangular lawn. For irregular shapes, measure the longest length and width, and increase the waste allowance to cover extra cutting and fitting.

Tips & Common Mistakes

Tips

  • Measure the lawn length and width in meters, using the longest points for irregular shapes.
  • Set the waste allowance to 5-10% for simple rectangular lawns, and higher for complex shapes.
  • Check the coverage per roll on the sod supplier's label; it's usually in square meters.
  • Round up the final number of rolls to ensure you have enough for cuts and mistakes.

Common Mistakes to Avoid

  • Forgetting to include a waste allowance, leading to a shortage of sod.
  • Using inconsistent units (e.g., measuring in feet but entering meters) which skews results.
  • Assuming the lawn is perfectly rectangular without accounting for curves or obstacles.

Last updated: August 13, 2026