Access and Inspection: The checker lid provides a secure yet removable cover, allowing easy access for inspection and maintenance of the drainage channel without requiring significant disassembly.

Safety: The lid helps prevent accidents by covering the open drainage channel, reducing the risk of falls or injuries, especially in pedestrian areas.

Load Bearing: Typically made from durable materials such as metal, a checker lid is designed to withstand various loads, including foot traffic, vehicles, and equipment, depending on its placement and specifications.

Debris Prevention: By covering the drain, the lid helps keep debris, leaves, and other objects from entering the drainage channel, which can help prevent blockages and ensure the system functions efficiently.

Aesthetic Integration: Checker lids often feature a textured surface that provides slip resistance and can be designed to blend with the surrounding environment, maintaining the area's visual appeal.