About Groundlane

Estimate any home project in minutes.

Groundlane started as a set of free construction calculators — concrete, gravel, square footage, and more — built so homeowners and contractors could get a real material estimate in seconds, without an account or a sales call. From there we built the tools that naturally follow a good estimate: saved projects, customer management, a price book, professional quotes, and a way for homeowners to connect with local contractors when they're ready to build.

Every calculator runs on the same deterministic math behind the scenes — area and volume formulas, material density tables, and waste-allowance rules that are unit-tested, not AI-generated guesses. When the AI project assistant helps plan a project, it calls those same calculator functions rather than inventing a number on its own, so the figures you get from a chat conversation match the figures you'd get from using the calculator directly.

The calculators will always be free. Contact us at support@getgroundlane.com.