What Is an Area Drain?

An area drain is a point-source drainage fixture, typically a grated opening installed at a low point in a paved or graded area, collecting surface water at that specific location and directing it to an appropriate discharge point or drainage system, distinguished from a trench drain’s linear collection approach.

This fixture type suits applications where water naturally collects at a single, identifiable low point, like a corner of a patio or a specific spot in a graded landscape, rather than needing the broader linear collection capability a trench drain provides.

Because area drains are point-source collection fixtures, proper site grading directing water toward the drain’s specific location matters significantly for the fixture’s effectiveness, since water needs to actually flow to that point rather than pooling elsewhere due to inadequate surrounding grade.

What Does an Area Drain Involve?

  • A grated opening at a specific low point
  • Point-source collection rather than linear
  • Connection to an appropriate drainage system
  • Dependence on proper surrounding grade directing water to the drain

Why Are Area Drains Important?

By providing a dedicated collection point at a location where water naturally accumulates, area drains offer a straightforward, often cost-effective solution for managing water at a specific problem spot without requiring the more extensive installation a linear trench drain might involve. This targeted approach suits many common residential drainage needs where water collects at an identifiable single point.

Because an area drain’s effectiveness depends entirely on surrounding grade properly directing water to its location, verifying adequate grading during installation, rather than simply placing a drain fixture without regard to actual water flow patterns, matters for achieving genuine drainage performance.

Area Drain vs. Trench Drain

An area drain collects water at a single point, suited to localized low spots. A trench drain collects water along a linear channel, better suited to broader areas or locations where water flows across a defined line rather than pooling at one specific point.