Permeable Surface Calculator
Calculate the impact of replacing asphalt with permeable surfaces.
Water Saved
29.7m³
per year
Reduction
84%
less runoff
Area
37 m²
400 pi²
Est. Cost
$7,200
to $11,200
Runoff Comparison
Asphalt (before)35.3m³
Permeable Pavers (after)5.6m³
Permeable Surface Options
| Surface | Permeability | Cost/sq ft |
|---|---|---|
| Permeable Pavers | 85% | $18-$28 |
| Gravel / Crushed Stone | 95% | $3-$8 |
| Grass Pavers (grid) | 90% | $12-$20 |
| Porous Concrete | 80% | $15-$25 |
| Natural Lawn | 70% | $2-$5 |
Note
Costs are estimates for the Montreal area. Actual prices may vary based on site conditions.
Ready to replace your asphalt?
We install permeable surfaces: pavers, gravel, and more. Free estimate.
514-900-3867