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Made Right for Everyday Outdoor Seating
When your outdoor furniture needs 18 x 20 outdoor seat cushions, you're working with precise space constraints. These smaller dimensions work perfectly for bistro sets, apartment balconies, and breakfast nook chairs where standard cushions overwhelm the scale. The compact 18 x 20 size provides full seat coverage without hanging over edges or creating bulk that makes small spaces feel cramped. Weather resistant fabric and dense foam construction mean these cushions maintain their comfort and appearance through daily use, turning those hard metal or plastic seats into places people actually want to sit for more than a few minutes.
Use Cases:
Foam Core Options:
Whether you’re updating the cushions on an outdoor pergola setup or redesigning a private patio, 18 x 20 patio chair cushions are the standard size for most outdoor furniture. Pick your ideal fabric, foam density, color, and pattern to create cushions that match your exact vision of an outdoor space that reflects your style.
Why Choose Our Custom Outdoor Couch Cushions?
Always measure between the seams or between the cording of the case. Measure the length, width, and thickness of square and rectangular shapes. For round and cylindrical shapes, measure diameter and thickness. Custom cushions require additional measurements based on the type of shape.
18x18 and 18x20 Inches are the medium sizes that work well on most sofas, chairs, and beds, while 20x20 inches is popular for large cushions.
If your backseat is 18 x 20 in dimension, yes. Otherwise, we recommend ordering separate back cushions for a better fit. Back seat cushions should be more comfortable and may have a different thickness than your seat cushions.
Customer service was wonderful. Cushion turned out great (material and craftsmanship). Thank you.
The product was well made, very comfortable seating and made to the size specifications requested. I would definitely order from them again.
Perfect fit for our space.
These are so much more than I expected. High quality fabric and construction. I will be ordering more.
It's perfect!
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.
Awesome in quality and customer support!
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
The quality of these cushions are absolutely fantastic, and the selection/purchasing process was seamless. Thrilled to have found ZipCushions!
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!