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Trapezium Bench/Sofa Seat Cushions

Replace your old worn-out trapezium bench or sofa seat cushion with a custom-made cushion from ZIPCushions, and it is super easy to get. You can make your bay window seat warm and inviting by adding a comfortable and stylish trapezium bench cushion to it for you to relax and unwind. We, at ZIPCushions, offer custom cushion solutions for all your needs. Our high-quality trapezoid cushions for bay windows and bench seats provide the necessary comfort and are a beautiful addition to any space. Our custom trapezium cushion features a modern look and can be used on a bench, daybed, window seat, kitchen nook, or any other piece of furniture.

The customization options allow you to choose the fabric and color that fits your taste from a wide range. You can also decide the foam thickness as per your comfort needs. We use high-density foam that helps your cushions to retain their shape for years to give you a perfect lounging experience. With the best-in-class materials, your cushions will stay beautiful for years. You can also go for additional design features like piping and ties to make your cushions more elegant.

Share your dimensions with us, and we will get your custom-tailored trapezium cushion ready that perfectly fits your space.

  • This is an Isosceles Trapezium. This means The two sides along the length are equal.
  • Remember the Top Width and Bottom WIdth are parallel to each other.

Indoor Fabrics:

Soft and buttery finish for a lush feel.

Made with Polyester and suitable for Indoor usage only 

Performance Fabrics:

You've got a wide range of Sunbrella® and Agora® fabrics to choose from.

Water, stain, and mold/ mildew resistant resistant

Both these global leaders in performance fabrics come with a 5-Year Manufacturers Warranty.

Suitable for indoor/outdoor usage

Stamskin by Serge Ferrari: Experience the luxury of Stamskin without guilt. Durable, stylish, and versatile faux leather fabrics for both indoor and outdoor spaces and marine upholstery.

Get more details  about our fabric collections here

      • These cushions are most widely used as bench cushions, window cushions, RV cushions, boat cushions, sofa cushions, bay window cushions trapezoid
      • All Covers come with YKK Zippers or Velcro. All covers are removable.

      Customer Reviews

      Based on 68 reviews

      Lovely! Fits perfectly. Finished out our space just right.


      Good product no other comment


      Love my new cushions. This company did a great job, was easy to work with and communicated often.


      The seller was very helpful during the ordering process and was able to give me input so that I got what I wanted. The only reason I didn’t give it five stars for shipping was because the cushion was rolled and packed and wrapped so tightly and with so many layersof thick plastic I almost gave up and send it back because I couldn’t get it unwrapped. I do hope they will rethink how they ship them because it was very frustrating. That being said, I am very happy with the final product and the cushion.


      I wanted rounded corners to fit in the chairs I have so had to make a template and send it. First time they sent me wrong address, so did it all again. Then it took a good 6 weeks to arrive. At one point I received a shipping notice and then a message on Etsy to say it had not actually shipped. Color online looked more burgundy than the burnt sienna color that arrived. But I like the cushions and they fit well. A bit deceptive that their address is in Colorado but the items were shipped from India.

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