Both sashes move vertically; exact tilt, balance, lock, and screen arrangements vary by product.
Double-Hung Windows
A vertically operated window with an upper and lower sash designed to move within the frame.
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Window styles
Choose an operating style that fits the opening.
Style affects ventilation, cleaning access, view, egress, hardware, and how the new unit relates to the home.
- Compare complete window options
- Clarify installation and finish scope
- Review written proposals
Explore residential window styles
Use each guide to compare common uses and questions to verify in a written proposal.
The lower sash moves vertically while the upper sash remains fixed in the common configuration.
Single-Hung Windows
A vertically operated window that generally has a movable lower sash and fixed upper sash.
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The sash swings on side hinges, commonly using a crank or similar operator; hardware varies by product.
Casement Windows
A window with a sash hinged at the side that opens outward in the common configuration.
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One or more sashes slide side to side; removable-sash and track designs vary.
Sliding Windows
A window with one or more sashes that move horizontally along tracks.
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The glazed unit does not open in the common picture-window configuration.
Picture Windows
A fixed window designed for daylight and view rather than ventilation.
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The sash projects outward on top hinges, commonly using an operator; exact hardware varies.
Awning Windows
A window hinged at the top that opens outward from the bottom.
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The composition may combine fixed and operable units; configuration varies by product and opening.
Bay Windows
A projecting multi-unit window composition commonly arranged with an angled center-and-side geometry.
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Individual units may be fixed or operable; the exact composition is product- and project-specific.
Bow Windows
A projecting composition of multiple window units arranged to create a rounded or gently curved appearance.
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The assembly may include fixed glazing and small operable side units; product designs vary.
Garden Windows
A compact projecting window assembly with multiple glazed surfaces and an interior shelf area in common configurations.
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The sash tilts inward on bottom hinges; hardware and opening limits vary.
Hopper Windows
A window commonly hinged at the bottom that opens inward from the top.
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A multi-position hardware system controls tilt and inward-turn modes; exact sequencing and safeguards are product-specific.
Tilt-and-Turn Windows
A dual-operation window designed to tilt inward at the top or swing inward from a side hinge, depending on handle position.
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Many specialty shapes are fixed; operability depends on the particular geometry and product.
Specialty-Shaped Windows
Fixed or operable window configurations made in non-rectangular or otherwise project-specific shapes.
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The window must be considered as part of the full clear opening, sill, well, access, and local-code context; style alone does not establish compliance.
Egress Windows
A window and opening evaluated for emergency escape and rescue under the rules that apply to a specific property and project.
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Many transoms are fixed; operable configurations and hardware vary and may be difficult to reach.
Transom Windows
A window positioned above a door or another window, commonly as a fixed daylight element and sometimes as an operable unit.
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