Rounded Back Seat Cushion 19.5 x 20 x 5 in Sunbrella Canvas - Durable

In this review of the Rounded Back Seat Cushion 19.5 x 20 x 5 in, the bottom line is simple: this cushion is for anyone who wants a durable, weather-ready cushion that still feels plush for deep seating. Built with fade-resistant Sunbrella performance fabric and a 5 in CumuPlus fill, it suits covered patios, porches, and sunrooms where long-lasting color and supportive comfort matter most. The hidden zipper and tailored rounded back give it a finished look while the thickness delivers noticeable support for rockers and lounge chairs.

Key Features

• Sunbrella fabric: Fade-resistant performance fabric keeps colors vibrant through sun and rain so outdoor setups look cared for longer.
• 5 in CumuPlus fill: Deep seating thickness provides consistent support and plush comfort for extended sitting sessions.
• Rounded back design: Curved back and box edge styling create a tailored fit that works with many chair frames measuring about 19 in to 21 in wide and 20 in to 22 in deep.
• Hidden zipper: Clean appearance and easy cover removal without visible hardware, which helps maintain a neat porch or patio aesthetic.
• Made in the USA: Domestic craftsmanship since 2004 offers quality construction and attention to detail.

Who It's For

This cushion is best for homeowners with deep seating chairs, rockers, or outdoor lounge furniture who need a durable, colorfast option that still feels comfortable. It excels in sunrooms and covered outdoor spaces where fabric performance and a tailored look matter.

Shoppers who prefer extremely soft, sink-in seating or need an exact custom size smaller than 19.5 in by 20 in should consider other options, since the cushion is designed for a substantial 5 in profile and specific rounded-back fits.

Pros & Cons

Pros

• Durable Sunbrella fabric resists fading and holds color outdoors well.
• Generous 5 in CumuPlus fill delivers supportive deep seating comfort.
• Rounded back and box edge styling provide a neat, tailored appearance.
• Hidden zipper and US manufacturing reflect good build quality and finish.

Cons

• Some customers find the firmness higher than expected, so it may feel too firm for those wanting a very soft cushion.
• Size and fit expectations vary, so confirm chair measurements before buying.

Specifications

Our Verdict

The Rounded Back Seat Cushion 19.5 x 20 x 5 in is a solid choice for anyone who wants a durable, tailored cushion for deep seating that keeps its color outdoors. Its 5 in CumuPlus fill and Sunbrella cover offer a good balance of support and longevity, making it a smart value for patios and sunrooms, provided you are comfortable with a firmer feel.

Frequently Asked Questions

Will this cushion hold up outdoors?
Yes, the Sunbrella performance fabric resists fading and is suitable for covered outdoor use and patios.

Is the cover removable for washing?
Yes, the hidden zipper allows the cover to be removed for cleaning according to fabric care guidelines.

What chairs will this fit?
The rounded back is tailored for chairs about 19 in to 21 in wide and 20 in to 22 in deep, including deep seating chairs and rockers.