5/8" diameter adjustable bay window curtain rods are perfect for mounting valances and curtains over bay windows. The center rod can extend from 38-72 inches and each side rod can extend from 20-36 inches. Winston Porter Finish: Cocoa

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bay window ideas for dining room

Reading corner with bay windows. Shown: WoodClad™ Series

A canted bay (the classic three-unit angled bay) typically runs $1,500–$4,200 installed, per a 2026 U.S. estimate, and box, bow, oriel and circle bays all price differently. Size, framing, roof cap and interior trim move the number. Before you sign, check what the quote actually includes. See the full bay window cost breakdown by type and size on UpgradeWorth.