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Trapezoid Custom Outdoor Seat Cushions - Image 1 | ZIPCushions
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Trapezoid Custom Outdoor Seat Cushions

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$27.93 USD - $341.71 USD

Price with selected options

15% Off - Till Stock Lasts
  • Precision-cut for perfect trapezoid seating fit
  • Premium weather-resistant outdoor fabrics withstand elements
  • High-density foam filling for superior comfort and durability
  • Number of colors and patterns to match any décor
  • UV-resistant materials prevent fading and deterioration
  • Optional Secure tie-down straps keep cushions in place
  • Perfect for patios, boats, windows, and RV seats
  • Custom sizing available for any trapezoid dimensions
  • Child and pet-safe, non-toxic materials

Say goodbye to ill-fitting cushions on your oddly-shaped outdoor furniture! Perfect for trapezoid patio benches, angular deck chairs, built-in garden seating, bay window nooks, and those unique geometric pieces that standard rectangular cushions never quite work with. Our precision-cut cushions eliminate sliding, gaps, and mismatched looks, giving your challenging furniture shapes the custom comfort they deserve while looking intentionally designed. 

Use Cases:

  • Unique-shaped patio benches and outdoor dining sets
  • Angular deck chairs and geometric lounge furniture
  • Built-in garden seating and retaining wall benches
  • Bay window nooks and reading corners
  • Custom-built outdoor furniture with unique shapes
  • Poolside loungers with non-standard dimensions

    Our outdoor trapezoid seat cushions feature premium outdoor-grade fabrics engineered to withstand harsh weather conditions while maintaining comfort and style. Choose from solution-dyed acrylic fabrics with UV-stabilized pigments that won't fade, OEKO-TEX® Standard 100 certified fabrics that are free from harmful chemicals and safe for all family members, weather-resistant polyester with protective coatings, or marine-grade vinyl for maximum water resistance. All fabrics include Martindale durability ratings for heavy outdoor use, built-in mildew and UV protection, water and stain repellency, and easy soap-and-water maintenance. Available in premium Sunbrella® collections and commercial-grade options with custom color matching.

    Upgrade your uniquely shaped outdoor furniture with our custom trapezoid seat cushions, designed to solve the age-old problem of finding cushions that actually fit non-standard seating. Precision-cut to your exact measurements, these premium outdoor cushions feature weather-resistant fabrics, high-density foam filling, and professional-grade construction that stands up to all seasons. 

    Choose from a wide range of colors and patterns to suit your needs. Our trapezoid cushion for bay window eliminates the frustration of sliding, gapping, or mismatched rectangular cushions, giving your angular patio furniture, built-in seating, or geometric outdoor pieces the perfect fit they deserve. From bay window nooks to custom deck benches, these cushions deliver both comfort and style while maintaining their shape and appearance year after year.

    Why Choose Our Trapezoid Custom Outdoor Seat Cushions?

    • Perfect Precision Fit: Custom-cut to your exact measurements - no more gaps, sliding, or awkward overhangs that plague standard rectangular cushions

    • Premium Weather Protection: Superior outdoor-grade fabrics with UV resistance, fade-proof technology, and all-season durability that maintains vibrant colors year-round

    • Long-Lasting Comfort: High-density foam core choice that won't sag or lose shape, providing consistent support and comfort season after season

    Safe & Quality Materials: Premium fabrics that are safe for family use, rigorously tested for durability and performance in outdoor conditions
    Use Coupon Code

    ZIPCUSHION15 - Get 15% Off Sitewide

    Frequently Asked Questions

    To create your perfect trapezoid cushion, you'll need to provide us with three key measurements. Our system will automatically calculate the angled sides for you, ensuring a precise fit every time.

    Required Measurements

    • Bottom Width: Measure the full width of the front edge of your seating area (the wider edge that faces forward). This measurement can range from 3 to 130 inches and is available in precise half-inch increments to ensure an exact fit.
    • Top Width: Measure the full width of the back edge of your seating area (the narrower edge). Like the bottom width, this measurement ranges from 3 to 130 inches with half-inch precision available.
    • Length: Measure the straight-line distance from the front edge directly back to the rear edge. Take this measurement perpendicular to both parallel edges, not along the angled sides. Available from 3 to 130 inches in half-inch increments.
    • Thickness Select your desired cushion thickness from our available range, from 2 to 12 inches. Consider your comfort preferences and the intended use of the cushion when making your selection.

    Automatic Calculations

    Once you provide these three dimensions, our system automatically calculates the angled side measurements to ensure your trapezoid cushion fits perfectly. This eliminates guesswork and guarantees precision in the final product.

    For irregular trapezoids or furniture with non-standard shapes, ZIPCushions offers several solutions to ensure a perfect fit. You can create a template using tracing paper or chart paper large enough to cover the cushion area, carefully tracing along the edges and labeling each side with corresponding measurements. For more complex shapes, you can upload a template, image, or detailed diagram along with your order.

    Our customer support team is available to assist you through the measurement process, and for uniquely shaped furniture or complex configurations, our team can guide you through the measuring process and help determine the best cushion style for your specific needs. This personalized approach ensures that even the most challenging trapezoid shapes receive accurate, custom-fitted cushions.

    For outdoor seating applications, reticulated foam, also known as Dry Fast Foam, stands out as an excellent option. This specialized foam features an open-cell structure that allows moisture to drain rapidly, significantly quicker than conventional cushion foams. Additionally, it comes pre-treated with antimicrobial compounds that actively resist bacteria, mildew, and fungal development, making it ideal for exposure to humidity and outdoor elements.

    Yes, Sunbrella is a good choice for your trapezoid seat cushions, as it is a gold standard fabric that is made to last outdoors. It is fade, UV, and weather-resistant, withstands harsh elements to save your investment for years. 

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    Customer Reviews

    Based on 751 reviews
    90%
    (675)
    8%
    (59)
    1%
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    (5)
    D
    Darlene

    Excellent quality and fits perfectly . I needed a custom filer cushion for my outdoor set. The support team was so helpful on assisting me with the order.

    S
    Sam

    Awesome in quality and customer support!

    M
    Marykay Holland (Shawnee, US)
    Very Satisfied Customer

    My custom made trapezoid cushion was a perfect fit. It was delivered ahead of schedule. They called to verify cushion thickness, and requested I send a photo of the sketch with measurements to recheck. I am very pleased with its appearance and comfort. Great product, carefully constructed and great customer service. I will use again if needed. Thank you. MKHolland Shawnee OK

    D
    Dena Libner (Portland, US)
    fantastic quality

    The quality of these cushions are absolutely fantastic, and the selection/purchasing process was seamless. Thrilled to have found ZipCushions!

    M
    Matina Wielgos (Wood Dale, US)
    Perfect custom cushion!

    Love my window seat cushion! I ordered a custom size window cushion with piping. Color was exactly what I wanted! Of all the sites I looked at theirs is the most user friendly and clear for customer. I received updates often and it arrived in a timely manner. So pleased!

    User picture
    V
    VALARIE

    The foam was top-quality..

    S
    Sherrie

    Cushions fit perfectly, well-made, fast shipping!

    I
    Iana

    Exactly the size I requested — the custom dimensions were spot on and it fits perfectly. The quality is excellent: firm, well-shaped, and the material feels durable and well-made. Everything matched my order exactly. Very satisfied with this purchase

    L
    Lexie Hash (Bel Air, US)
    Awesome! So happy with cushion!

    Zip Cushions was absolutely amazing to work with. Their team was incredibly thorough and took the time to double check all of my measurements to make sure everything was perfect. I really appreciated the attention to detail and care they put into the process. My new cushion turned out beautifully and fits exactly as I hoped. The quality is excellent and you can tell it was made with precision. Shipping was also very quick which made the whole experience even better. I would highly recommend Zip Cushions to anyone looking for a custom piece done right.

    J
    Jacquelyne

    Perfect fit and fabric. Exactly what I was looking for.

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