Custom U-Shape Window Seat Cushions — Wraparound Bay, Any Size

A U-shape bay window seat is one of the hardest to cushion. The bench turns at both ends, so a single pad cannot follow it and separate cushions leave two seams at the corners. The wraparound seat ends up looking pieced together instead of built in.

USCUSHION cuts each U-shape window seat cushion as matched sections shaped to your bay. You give us the length of each run and the corner angles, choose your foam and fabric, and the sections arrive ready to meet cleanly around the whole wraparound.

Why customers choose us:

• Cut to your bay: We shape the sections to meet flush at both corners, so the U reads as one seat.
• Matched across sections: All runs arrive in the same fabric and dye lot for a continuous look.
• Seat and back together: Add back cushions for a wraparound seat set against the bay wall.
• Foam that holds its shape: A high-density core keeps every section supportive through years of use.
• Removable zip covers: YKK zipper covers come off for washing so a wraparound seat stays fresh.

You May Also Like:

• custom bay window trapezoid cushions
• l-shape window seat cushions
• custom bow window cushions

Every U-shape window seat cushion is made to order. See more shapes in our custom window seat cushions collection.

A deep bay window can wrap a seat around three sides. The bench runs along the center window and turns at both ends into a U. Cushioning that with single pads leaves two seams that never line up. A custom U-shape window seat cushion is cut as matched sections that follow the whole wraparound.

Perfect for:

• U-shape window seats where a bench wraps three sides of a deep bay or alcove
• Wraparound bay window benches with a center run and two return sections at the ends
• Deep bay window seats used as a daily lounging spot that needs full-length cushioning
• Sun-facing wraparound seats where every section needs fabric that holds color evenly
• U-shaped window bench replacements where the frame is solid but the old cushions no longer match

If your window seat is a single straight run or an angled bay, our custom bay window trapezoid cushions fit those instead. Order all three sections together and add back cushions for a wraparound seat against the wall.

U-shape window seat cushions suit deep bay windows and alcoves where a bench wraps three sides. The matched sections work with modern, traditional, and cottage decor, turning a wraparound bay into a comfortable everyday seat.

A U-shape window seat has three sections in one bay, each catching sun from a different angle. One fabric across all three keeps the color even as the seat ages. Our catalogue covers weaves that handle uneven sun while staying soft enough for a spot you settle into.

All fabrics are:

• Fade-resistant so all three sections hold the same color even when one side gets more sun
• Easy to wipe clean after everyday use in a deep bay lounging spot
• Soft and comfortable for long sitting across the whole wraparound seat
• Durable enough for daily family use in a well-loved window bay
• Available in a wide range of colors so the three sections read as one continuous seat

For sunny bays, a solution-dyed performance weave keeps all sections matched. For softer rooms, velvet and linen give the wraparound a warm, finished look.