Sill Pan

Construction glossary · Windows & doors

Windows & doors · definition

A waterproof tray at the base of a window rough opening that catches and drains any water that gets past the window to the exterior.

Source: Andersen Windows — Installing Windows for Continuous Water Control

Where this term lands on a Columbus budget

The cost pages carry the current local ranges, and the guides explain what moves them. A published range becomes a project number only after someone looks at the site.