Earthworks Scope Calculator

Calculate excavation volumes, material quantities, and project scope for your property. Enter your dimensions and we'll show you what's involved.

Sizing tool only -- no prices. Every project is different. We'll calculate volumes and quantities here so you know the scope. For actual pricing, book a site visit and we'll quote it on the ground.

Select your project items

Pond Excavation
Swale System
Cistern System
Greenhouse Prep
Climate Battery
Site Clearing
Septic System
Keyline Ripping

Pond Excavation

Optional extras

Swale System

Optional extras

Rainwater Cistern System

Optional extras

Greenhouse Site Prep

Standard sizes: 9×12 backyard kit (108 sq ft) or 14×20 production unit (280 sq ft). Custom dimensions accepted.

Optional extras

Climate Battery Installation

Offered as an add-on for the 14×20 production unit (280 sq ft). Includes excavation, gravel, pipe, and fan. Not available for the 9×12 backyard kit.

Site Clearing & Access

Optional extras

Septic System

Includes design, permit, and installation. Size scales with bedrooms.

Keyline Ripping

Optional extras

Site conditions modifiers

Project scope summary
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These are the volumes and quantities involved. Contact us with this summary for an accurate quote based on your site.
ItemQuantity / VolumeNotes

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Send us this scope summary and we'll price it based on your site.

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What affects earthworks cost?

Access

Can a 20-tonne excavator reach the site? Every extra hour of mobilization adds cost. Narrow driveways, gates, soft ground, and steep approaches all increase the price before any digging starts.

Soil

Rock means slow digging and sometimes a breaker attachment. Wet clay means waiting for dry weather or accepting lower-quality compaction. Sandy soil means more compaction passes and potentially importing clay for pond sealing.

Scale

Larger projects have lower per-unit costs. A 500 m3 pond is cheaper per cubic metre than a 50 m3 pond because mobilization and setup costs are spread over more volume. Combining multiple items in one visit saves money.

Season

Summer work is most efficient. Wet-season work needs more time, more fuel, more cleanup, and risks soil compaction damage. On Vancouver Island, the window from June to September is prime time.

Permits

Dam safety reviews, water licences, and septic permits add time and cost depending on scope. Projects near streams trigger riparian assessments. Budget for regulatory requirements early.

Combine projects

The biggest savings come from combining work items in a single mobilization. A pond, swale system, and site clearing done together is significantly cheaper than three separate visits.

Ready for a real quote?

Need help with this on your property? Swell Farms designs and builds across Vancouver Island and the Gulf Islands. Book a site visit and we'll scope your project on the ground.

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