How Many Curtain Panels for a Bay Window?
Quick answer: treat each window section as its own unit — one pair per section, or one pair across the whole bay on a track. A standard 3-section bay with 36-inch sections needs about 6 panels if you curtain each section, or 4 wide panels on a bay track.
- Measure each section
- One rod or three
- The fullness rule across a bay
- Panel count options
- Worked example: 3-section bay
- FAQ
Measure each section
Bay windows have angled sections, so measure each section's width and height separately, plus the total span across the bay and the corner depth. For a track you need the full span; for individual rods you need each section's width. Don't just multiply the center window — the side sections are usually narrower.
One rod or three
A single flexible bay-window rod or track that follows the angles is the cleanest look — curtains run continuously across the whole bay. Three straight rods, one per section, is the budget alternative but leaves visible breaks at the corners. The rod style decides the panel count.
The fullness rule across a bay
Fabric total should be 1.5–2× the rod or track span. A 3-section bay spanning 108 inches wants 162–216 inches of fabric — four 50-inch panels on a track give about 1.85× fullness, which sits right in the sweet spot.
Panel count options
- One pair per section: 3 sections = 6 panels. Full coverage per window; most flexible.
- Four wide panels on a bay track: 2 pairs across the whole bay. Cleaner, fewer panels.
- Curtain only the center or the sides: fewer panels, valid look, and a real budget saver.
Worked example: a 3-section bay, 36/48/36 inches
- Sections = 36 + 48 + 36 = 120 in span
- Track option: 120 × 1.7 ≈ 204 in → four 50-in panels
- Per-section option: 36-in pair ×2 + 48-in pair ×1 = 6 panels
- Length = rod height to floor, via the curtain length calculator
FAQ
Treat each window section as its own unit: one pair (2 panels) per section, or one pair across the whole bay on a track. A standard 3-section bay needs about 6 panels per-section, or 4 wide panels on a track.
Measure each section's width and height separately, plus the total span and corner depth. For a track use the full span; for individual rods use each section's width.
A single flexible bay-window rod or track that follows the angles is cleanest. Three straight rods is the budget alternative but leaves visible breaks at the corners.
Total fabric should be 1.5–2× the rod or track span. For a 108-inch bay, that's 162–216 inches — four 50-inch panels give about 1.85× fullness.
No — curtain only the sections you want. Many people curtain the whole bay, but draping just the center or only the two side sections is a valid look that cuts the panel count.