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DIY Cost Tools

DIY Cost Tools

Garden Bed Edging Calculator

Calculate edging length and rolls for matching rectangular garden beds.

Whole number from 1 to 1000 beds.
Number from 1 to 1000 ft.
Number from 1 to 1000 ft.
Number from 0 to 100 %.
Number from 1 to 10000 ft.

Enter values in the units shown. Empty fields, fractions, comma-formatted numbers, values outside the listed ranges, and non-finite values are rejected.

Edging length
Whole rolls

How to use this calculator

  1. Measure the project or enter costs from a current quote or product label.
  2. Adjust the quantities, coverage, package size, and allowances to match your situation.
  3. Select Calculate, then check the method, worked example, and limitations below.

Formula and method

Total border = beds × 2 × (length + width). Add cutting allowance and divide by roll length, rounding up.

Whole packages and pieces are rounded up. Results disappear when an input changes until the new values are calculated.

Worked example

Beds 4 beds; Bed length 8 ft; Bed width 4 ft; Cutting allowance 10 %; Edging per roll 50 ft. Results: Edging length 105.6 ft; Whole rolls 3 rolls.

The example uses the values initially displayed in the fields.

Limitations

Beds sharing edges or having curved boundaries need measured runs. Stakes and connectors are not included.

Review and reference

Reviewed October 5, 2026. The default example, input boundaries, arithmetic, rounding, and invalid input behavior were checked. The method is explained on How Our Calculators Work; replace example inputs with measurements or current product specifications. This is a planning estimate.

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