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DIY Cost Tools

DIY Cost Tools

Paver Edging Quantity Calculator

Estimate border length and edging pieces for a rectangular patio with an optional open edge.

Number from 1 to 1000 ft.
Number from 1 to 1000 ft.
Number from 0 to 1000 ft.
Number from 0 to 100 %.
Number from 0.1 to 100 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 pieces

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

Edged perimeter = max(0, 2 × (length + width) − opening). Add allowance and divide by piece length, rounding up.

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

Worked example

Patio length 20 ft; Patio width 12 ft; Unedged opening 4 ft; Cutting allowance 10 %; Edging piece length 6 ft. Results: Edging length 66 ft; Whole pieces 11 pieces.

The example uses the values initially displayed in the fields.

Limitations

An opening cannot exceed the perimeter; irregular edges, curves, spikes, and vendor bundle sizes require separate planning. The unedged opening must not exceed the patio perimeter.

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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