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Custom Bay Window Seat Cushions — Trapezoid, Any Angle & Size

$—
Free shipping · USD
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Most popular: 3″ (77% of orders)
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Measure your existing cushion or the space it should fit.
Configure your cushion below
1
Shape *
Rectangular
Rectangular
included
Tufted cushion
Tufted cushion
included
France tufted cushion
France tufted cushion
included
Custom shape
Custom shape
+$50
2
Choose your fabric *
3
Piping *
No piping
No piping
included
Single piping
Single piping
+$5
Double piping
Double piping
+$8
4
Straps *
No straps
No straps
included
2 straps
2 straps
+$2
4 straps
4 straps
+$4
5
Zipper type
Regular zipper
Regular zipper
included
Invisible zipper
Invisible zipper
included
Zipper placement reference diagram showing sides A, B, C, D
6
Anti-slip method *
No anti-slip
None
included
Black anti-slip pad
Black pad
+$5
Beige anti-slip pad
Beige pad
+$5
Velcro anti-slip
Velcro
+$9
7
Add-ons (optional)
Extra Covers
Specify fabric in note.
Throw Pillow
Pillow Covers
Armrest Pillow
i
Notes
Complete shape, dimensions, and fabric to continue
Your cart
Custom Bay Window Seat Cushions — Trapezoid, Any Angle & Size
Custom-made item. Allow 2 to 4 weeks for production and delivery. Dimensions confirmed upon checkout.
Total $0
OUR GUARANTEES
  • 30 Day Return
  • Free shipping
  • 3 Year Rove Limited Warranty
  • 240+ Trustpilot Reviews
  • Over 15 years of Craftmanship
Description

Standard cushions cannot fill a trapezoid bay window seat. The angled sides leave triangular gaps at the corners, a rectangular pad slides toward the center panel, and the whole window seat looks unfinished no matter how you position it. Custom bay window seat cushions cut to your exact angles are the only way to make the seating look built-in.

USCUSHION cuts each bay window seat cushion to your exact angles and dimensions. You measure the front edge, the back edge, and the depth of each angled panel, and we cut the trapezoid precisely to match. Order the full three-panel bay window set together and every piece arrives in the same fabric from the same dye lot, so the seating reads as one designed area across the whole window rather than pieces pushed together to approximate a fit.

Why customers choose us for bay window cushions:

  • Cut to your exact trapezoid: Provide the front width, back width, and depth for each angled panel and we cut to your specific bay window geometry — no gaps at the corners, no overhang at the sides.
  • Full bay window sets matched: Order the center and both angled side cushions together and every piece arrives in the same fabric and dye lot so the bay looks like a single designed seat.
  • Sun-resistant fabric options: Bay windows get concentrated UV; choose fade-resistant fabrics that hold color through daily morning and afternoon sun.
  • High-density foam that holds its shape: An HD foam core stays supportive through years of daily use in a reading nook or living room bay window seat without compressing flat at the angled edges.
  • Cover + foam, removable: Every cushion is the complete unit — cover and foam together — with a YKK zipper cover that comes off for washing without replacing the foam.

How to Measure a Bay Window Seat Cushion

A bay window seat is usually three panels — a wide center and two angled sides. Measure each panel separately: its front width, back width, and depth, plus the angle where the panels meet (most bays are 135 degrees, but measure yours). Order it as separate trapezoid sections or as one shaped cushion that follows the whole bay. If the shape is unusual, trace it on kraft paper and send us the template.

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Craftsmanship

Crafted by hand, built to last

Every cushion is cut and sewn by skilled craftspeople at our US facility. No shortcuts, no compromises — just precise work made to hold up for years.

Custom fit

Made to fit your exact space

You send us your measurements — down to the fraction of an inch. We cut to match. Whether it's an RV dinette, a window seat, or a patio bench, it fits like it was always there.

Fabric library

Over a thousand fabrics to choose from

Indoor performance, outdoor UV-resistant, marine-grade waterproof — our fabric library spans every use case. Order samples and feel the difference before you commit.

WHY CHOOSE USCUSHION

Benefits USCUSHION Other Brands
Direct, fair pricing

15+ years of expertise with fair, direct pricing

Inflated markups driven by name recognition

No middlemen markups

Direct from design to your home - no middlemen, no markups

Layers of brokers and showrooms inflate the price

Exclusive membership perks

Exclusive membership + concierge service = lower prices across 1,000+ design

No membership, no concierge, one inflated price for all

Independent, design-driven

Independent, customer-focused, built for modern living

Corporate giants pass overhead costs to you

Quick delivery

From "Finalized" to "Delivered" in just 20-30 days.

Third-party shipping = delays and hidden fees

Pro-managed from design to delivery.

Real experts, real support. We don’t just take orders; we guide your design.

They take your order, then make you wait weeks for an update.

From our customers

Real cushions, real spaces

"Measured my RV dinette and ordered — fit perfectly on the first try. The foam density is exactly what I asked for."

Sarah M.
RV bench cushion · Sunbrella canvas

"Our patio chairs had oddly shaped seats. No one else would do custom. These guys nailed it and shipped fast."

James T.
Outdoor seat cushion · Marine vinyl

"Ordered swatches first, picked the linen blend. The finished cushion looks like it came with the sofa."

Linda K.
Indoor sofa cushion · Linen blend
Customer photo
Stylish 52 bench cushion with deep navy color and geometric pattern in an outdoor patio setting
Customer photo
Customer photo
Customer photo
4.9
Based on 240+ reviews
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