Bay window styles: angled, box, and bow
Three geometries: angled (classic), box (contemporary), bow (graceful curve). Side-by-side comparison.
Once you've decided on a bay window, the next question is geometry. Three styles: angled, box, bow. They differ in panel count, look from inside and out, interior alcove shape, and cost.
In this guide
- 1
Angled bay
Geometry: three panels — one large center, two angled side panels at 30° or 45°. Look: classic Victorian, Colonial Revival, traditional. Alcove: trapezoidal — narrower at front than back. Good for window seat. Cost: cheapest of the three.
- 2
Box bay
Geometry: three panels at 90° — center parallel to wall, two side panels perpendicular. Rectangular protrusion. Look: contemporary, modern, mid-century. Alcove: rectangular — same width front and back. Best alcove for furniture. Cost: moderate.
- 3
Bow bay
Geometry: four to six panels in a gentle curve. Look: graceful, refined. English country, art deco, high-end modern. Alcove: curved interior face. Beautiful but harder to furnish. Cost: most expensive — more panels, more framing, custom roofing.
- 4
How to choose
Choose angled if: house is traditional (Victorian, Colonial, Cottage) and budget matters. Choose box if: house is contemporary or mid-century. Choose bow if: house is high-end traditional or modernist and budget supports the cost.
Tips
Match the angle to the architecture
30° angles read more formal/Victorian; 45° more contemporary. Box at 90° reads modern.
Frequently asked questions
What's the difference between a bay and bow window?
Bay = three angular panels. Bow = four to six panels in a smooth curve. Bow is gentler in appearance and more expensive.
Which bay window style is most popular?
Angled bay (three-panel angled) is the most common in residential — cheapest and fits most styles.
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