Window Frame -

: The vertical sides that run between the head and the sill, often housing tracks for the sash.

A window frame is the structural foundation that holds the entire window assembly—including the glass (glazing) and the movable sash—securely to your home's wall. Modern frames are engineered to balance aesthetic appeal with critical performance factors like insulation, moisture drainage, and structural strength. Key Components of a Window Frame window frame

A standard frame consists of four main parts that work together to seal and support the unit: : The top horizontal section of the frame. : The vertical sides that run between the

: Small openings in the sill that allow trapped moisture to escape, preventing rot and water damage. Comparison of Frame Materials (2026 Trends) Key Components of a Window Frame A standard

Choosing a material impacts energy bills, maintenance, and durability.

: The interior ledge at the base (where you might place a plant), which is often confused with the sill.