A standard frame consists of four main parts that work together to seal and support the unit: : The top horizontal section of the frame.
Choosing a material impacts energy bills, maintenance, and durability. window frame
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 A standard frame consists of four main parts
: The bottom horizontal piece on the exterior , typically sloped to drain water away from the wall. Modern frames are engineered to balance aesthetic appeal
: Small openings in the sill that allow trapped moisture to escape, preventing rot and water damage. Comparison of Frame Materials (2026 Trends)
: The vertical sides that run between the head and the sill, often housing tracks for the sash.
: The interior ledge at the base (where you might place a plant), which is often confused with the sill.