100 Inch Large Casement Window for a Bright Main-Floor Bedroom

A 100 inch window creates a dramatic amount of glass and can make a room feel noticeably brighter, wider, and more connected to the outdoors. This large-format casement design measures 100 x 70 inches, making it a strong option for rooms where generous natural light and expansive views are a priority.

Installed in a main-floor, side-facing bedroom in Toronto, this retrofit window replaces the existing unit while preserving the surrounding wall and interior finishes. Its broad proportions create the kind of big window design often associated with larger living spaces, while here providing the same open, airy effect within a bedroom.

The white exterior and white interior keep the overall appearance clean and understated, allowing the scale of the glass to remain the main visual feature. With no grills, the window provides uninterrupted sightlines and allows maximum daylight into the room.

Low-E 180 double-pane glass with argon gas helps reduce heat transfer and maintain a more consistent indoor temperature throughout the year. The Super Spacer glazing system supports long-term sealed-glass performance and helps reduce condensation around the glass edges.

• Main floor, side-facing bedroom
• Toronto, Ontario installation
• Retrofit installation
• 100 x 70 in casement window dimensions
• 100 inch window width
• White exterior and white interior
• Low-E 180 double-pane glass
• Argon gas fill
• Super Spacer glazing system
• ENERGY STAR® rated performance

View all casement windows.