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Custom Size Rectangular Window Seat Cushions
Transform your window seat into a cozy retreat with custom rectangular cushions. Perfect for reading nooks, breakfast corners, and sunny relaxation spots throughout your home.
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Comfort Choices
Select firmness from plush soft to supportive firm
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Any Size
Custom width, depth & thickness to fit perfectly
💡 Design Tip: Add coordinating throw pillows for extra back support. Choose from 100+ fabrics to match your interior décor.
📐 Need Trapezoid Shapes? For angled bay windows, visit our Bay Window Cushions page for trapezoid and multi-section options.
Handmade
Every detail is carefully handcrafted to ensure superior quality and durability.
Free Shipping
Factory-direct delivery in 7-10 days straight to your door.
Effortless Care
Easy Cleaning and Maintenance for Our Cushions.
Factory Guarantee
We are confident in the quality of our cushions to ensure they are built to last.
Product Description
Perfect For Every Window & Space
Reading Nooks
Turn your window alcove into a cozy reading retreat
Bay Windows
Add plush comfort to your favorite bay window seat
Kids' Rooms
Create a playful and comfortable window perch for little ones
Sunrooms & Lounges
Elevate bright, airy spaces with custom rectangular cushions
Care & Maintenance
Spot Clean: Blot spills immediately with mild soap and cold water; avoid rubbing to protect the fabric
Machine Wash: Remove covers and wash on a gentle cycle with cold water for a thorough clean
Air Dry: Hang or lay flat to dry; keep away from direct sunlight to prevent fading
Storage: Store in a cool, dry, ventilated area when not in use for extended periods to preserve shape and freshness
Design Your Perfect Fit
Follow the steps below to build your custom cushion. Your price will update automatically.
Need a completely custom shape or size?
If your specific dimensions or desired shapes aren't listed below, we can still handcraft it for you! Contact our support team with your sketches for a personalized quote.
Choose Shape or Style
Please note that when selecting Rounded, Rounded Front, or Rounded Back – your custom cushion’s corner will be cut at a 5 degree radius.
Classic Smooth
Linear Stitch Tuft
Grid Stitch Tuft
Channel Waterfall
Choose Dimensions
Zipper on the bottom of the longest side, hidden design.
INCH
CM
Featured Customization
Choose your preferred customization option.Non-slip Ties
No Straps
2 Straps
4 Straps
Anti-slip Method
The non-slip bottom ensures that the cushion stays close to the surface of the stool during use and has a non-slip feature.
No Anti-slip
Black
Beige
Piped Edge
No Piping
Single Piping
Double Piping
Choose Fabric
Print Your Own Custom Pattern
Want a custom pattern? Place your order using any fabric placeholder, then contact support with your artwork to have it custom printed.
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Your Custom Configuration
(Custom Size Rectangular Window Seat Cushions)
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Fabric Details
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