Replacement Indoor Sofa Cushions 21 x 22 x 4

This square sofa cushion is designed for maximum comfort and flexibility. It features high-resilience foam combined with an internal spring construction, delivering a balanced feel of softness and support that resists sagging even after prolonged use. The cushion comes with a removable, machine-washable white inner cover, allowing you to see the high-quality foam inside. You can easily use it with your own favorite slipcovers or cushion cases to match any decor. Ideal for replacing worn sofa cushions, DIY chair pads, or adding comfort to window seats and banquettes. Available in multiple sizes.

This is a wonderful couch replacement cushion. It comes with a zipper cover in grey as well. It is well constructed and comfortably firm. However, it did not fit my couch. Before I could think about returning it, my dog claimed it as her own. It is probably the fanciest dog bed she has ever had. Although I am sorry it did not fit my sofa, I am happy it is making my dog happy. She loves it. If it will fit your couch or chair, I highly recommend it. It is a quality cushion.. Marykay. Houston, TX. Thu Oct 15 2026

The High-density foam is highly durable and long-lasting it has multiple uses. Enjoy this foam as mattress topper, bed support, furniture cushion car/ boat cushion any many more.

These worked exactly like I needed them to do to make new cushions for the couch that I bought that wasn’t exactly soft anymore. Anonymous. Fri Oct 09 2026

Renew saggy furniture with our 24×24 inch high-density foam replacement pad. We provide 5 thickness options from 2 to 6 inches, and this foam can be DIY trimmed into rectangles, T-shapes, trapezoids and more. Vacuum-packed for delivery, it fully regains its shape within 48–72 hours. Soft, sturdy high-density foam delivers lasting comfort, letting you refresh your sofa, dining chair, boat or bay window without purchasing new furniture.

They came quickly and were exactly what I was looking for. They slid into my couch cushion covers super easily. They do take 72 hours to fully "inflate," and I have not reached that time frame yet but so far I am very pleased!!!. Lee Ann. Crofton, MD. Thu Jun 25 2026

Incredibly comfortable velvet: Includes 3 pieces. Made of luxurious velvet plush fabric, it has the characteristics of thick, soft, smooth, anti-wrinkle, fast fading, durable, and strong elasticity. Protect your upholstered furniture from everyday wear and tear, stains, and scratches from children, pet paws, dogs, or accidental spills.

These were not quite as big as I had hoped for because my couch is huge, but they do work for my back cushions still excellent quality and they stay on the cushions nicely. Very soft and perfect color. Erica. Kansas City, MO. Mon Oct 12 2026

Upgrade your sagging sofa with our Couch Cushion & Sofa Support Board, designed to restore firmness and comfort in minutes. Crafted from ultra-durable 0.75"" thick high-quality wood, this board provides long-lasting support, outperforming MDF or particle board alternatives. Measuring 19.25” wide, it covers more surface area, helping reinforce worn-out springs, frames, or cushions.Featuring slip-resistant grip dots on the underside, the board stays securely in place during daily use, while the rounded corners help prevent damage to your sofa fabric. Installation is quick and easy—just unfold the board, place it over your sofa frame, and replace the cushions on top.It is good for armchair, back cushion for couch, back support for couch, bed board, bed boards for under mattress, couch back cushions, couch blocker, couch cushion replacement, couch cushion support, couch cushion support for sagging seat, couch cushion hook & loop fastener to prevent sliding, couch cushions replacement, couch foam replacement cushion, couch pads for sofa, couch stoppers to prevent sliding, couch support, couch supporter for under the cushions, couch supports for sagging cushions, cushions for sofa, deep seat cushions, extra deep couches, foam for cushions, large couch, love seat couches, loveseat cushion, replacement couch cushions, under sofa blocker. This foldable and stackable design ensures a universal fit, suitable for most standard sofas, loveseats, and small couches. Be sure to measure the inside arm-to-arm seat width before purchasing. This model measures 23 inches long and can support up to 400 pounds. Perfect for breathing new life into your living room seating—comfort, support, and durability all in one.

I really was impressed with this. Anonymous. Fri Oct 16 2026

Couch Cushion Support for Sagging Cushions 20''x20'', Two in One Sofa Cushion Support to Repair Sagging Seats, Lift Saggy Seats, Extend Couch's Life, Blue & Grey 3PCS

Great buy. Moms sleeper couch was sinking. This was great for stability. Tricky to place cushions may have to trim one, but worth it.. Priscilla. Naples, FL. Sun May 24 2026

Elevate your home comfort and creativity with our 2PC Square High Resilience Foam Cushions. Crafted from high-density foam, they deliver exceptional support and superior resilience—quickly bouncing back to shape without deformation, even after prolonged use. Designed for easy customization, these pads can be cut to any size or shape, making them perfect for DIY projects, replacing sofa cushions, upgrading dining chair pads, or crafting cozy floor cushions. With multiple size options and a versatile design, they’re ideal for a range of scenarios, from furniture makeovers to unique creative endeavors. Bring durability, personalization, and comfort to your space with this value-packed two-piece set.

Perfect to fit inside our outside cushions. Inexpensive way to update outdoor cushions by purchasing cushion covers and foam.. Terryl. Ellijay, GA. Tue May 12 2026

Refresh your outdoor dining or lounge seating with this set of four rectangular seat cushions. Designed to instantly elevate your patio or deck, each cushion features a vibrant pattern that adds a stylish touch to your space. The water-resistant polyester cover helps shield the soft polyurethane foam filling from unexpected weather and spills, ensuring lasting comfort. Integrated ties at the back secure the cushions firmly to your chairs, preventing slipping during use. Plus, the sewn-closed design not only offers a clean, tailored look but also enhances durability, making this set a practical and stylish upgrade for open-air relaxation.

Super cute and comfy set! I love the design and it’s much more plush and thick than a standard cushion.. Jacqueline. Denton, TX. Wed Sep 09 2026

Our patio chair cushions set of 2 adopt 300GSM High Density polyester fabric the high temperature coloring process can keep color fastness. Come with 3 Inch thick quality 30D High Resilience Foam, super soft and comfortable with excellent elasticity supporting and recovery ability. Two straps and the bottoma non-slip matter are designed to secure the cushion to the furniture. Designed with hidden zipperand double layer protection waterproof cover,all-round waterproof to keep rain out and protect the inside foam. Also, these chair cushions for outdoor furniture are super easy to maintain and clean, spot clean with damp cloth,then hang them to dry. The outdoor seat cushion for patio furniture,garden, patio, beach is a perfect choice.

These came compact and rolled up. They expanded very quickly even though it did say it could take up to 24 hours. The covers were separate and went on easily. They are thick and very comfortable and have a non slip texture to one side along with ties to secure to the chair. Very happy with them.. Brenna. Sunderland, VT. Thu Aug 06 2026

3PCS Trapezoidal 20" X 20" Couch Cushion Support for Sagging Seat, 40D High Density Foam Sofa Couch Cushion Inserts Support, White, Repair Sofa Dents to Improve Comfort

I was very pleased that these “cushion boosts” are so effective. My chair and loveseat are renewed! Thank you.. Clara Ruth. Pasadena, TX. Thu Apr 30 2026

Enjoy the great outdoors and embrace the elegance of life We're thrilled to bring you an amazing outdoor sofa cushion replacement set that'll give your patio furniture a fresh new look. With an incredible colour options, this set comes with 3 Pack Seat cushions, 3 Pack long Back cushions, 2 Pack Lumbar pillow , perfectly fitting your 3-seat Patio Furniture Conversation Set. This elegant outdoor sofa cushion set in a 100% polyester fabric satisfies design demands as well as a desire for ultra-comfortable seating. A fill of professional 30D high resilience purity foam ensures durability and comfort. Have confidence in outdoor use with its remarkable outdoor fabric that resists fading and water damage. Remove cushions for spot-cleaning through YKK zippered enclosures. Wonderfully decorative, this sofa cushion set moves easily to an indoor spot to spice up a casual living space.

These are great! I got this outdoor couch for free on the curb and these were the perfect affordable cushions for it. They are very water repellant and easy to wipeclean off.. Beth. Franklin, MA. Sun Oct 11 2026

Add the finishing touches to your outdoor patio furniture with some comfortable outdoor patio chair cushions. The cushions are filled with a high-resilience foam that bounces back and is durable, unlike regular polyurethane foam which is less durable. With waterproof outdoor cushions being the trend, we ensure that our cushions are water-repellent, allowing the water to bead off and keeping your cushions safe. UV-resistant cushions thanks to the solution dye polyester that ensures the charming colors stick and can last each season. The perfect cushions for outdoor chairs and the perfect replacement patio cushions.

These are just as thick and sturdy as described. Very comfortable.. Anonymous. IL. Sat Jul 25 2026

Refresh your outdoor seating with a cushion set designed to deliver comfort, structure, and an easy finished look. Ideal for updating lounge furniture, this seat and back cushion set helps create a more inviting place to relax while giving your patio setup a cleaner, more polished appearance. Made proudly in the USA, this replacement cushion set is crafted with high-performance solution-dyed polyester fabric designed for everyday outdoor living. The durable construction helps resist water, stains, fading, sun exposure, and changing weather conditions, making it a practical choice for high-use outdoor spaces. Reversible construction adds everyday versatility, while removable zippered covers make ongoing care easier. Inside, the 3-layer premium cushion design is engineered for a balance of softness and support. A supportive cushion core is wrapped in a strong, wrinkle-resistant layer of polyester fiber to create a comfortable feel with a more tailored appearance. With its blend of comfort-driven construction, easy maintenance, and outdoor-ready durability, this cushion set is a smart upgrade for relaxed everyday living.

Cushions were a different color and size, however the customer service rep. was amazing. Very patient and very helpful.. Patricia. Timberville Va. Fri Jul 31 2026

Our couch cushion support is specifically designed to improve the support of sagging sofa seats and restore them to their original form. Made of high-density foam, our under couch cushion support provides exceptional stability for your sofa seats.our couch cushion support for sagging cushions are precisely measured at 20x20 inches, featuring a 2-inch thickness at the center and 1.2 inches on the edge.

Actually felt a difference in my couches. Glad I made the purchase.. Latoya. Greensboro, NC. Sun Oct 04 2026

This cushion set offers a refreshed look for your outdoor lounge chairs, loveseats, or sofas. Each piece is upholstered in yarn-dyed polyester fabric that is specifically designed to resist water, fading, and UV rays. This high-performance textile ensures your seating area remains vibrant and fresh throughout the seasons. The interior features high-resilience foam that provides a supportive place to rest and quickly returns to its original shape. We also love that the extended zipper closures make it simple to remove the covers for easy cleaning and maintenance.

Cushions arrived yesterday. Color and fit are perfect. I plan to order more.. Pamela. Santa Barbara, CA. Thu Aug 20 2026

Transform your home comfort and creativity with our Square High Resilience Foam Cushion. Crafted with high-density material, it boasts exceptional resilience—quickly regaining shape after use and resisting dents even with prolonged sitting. Its easy-to-cut design empowers you to customize it to any size or shape, making it a perfect fit for DIY projects, furniture upgrades, or crafting one-of-a-kind items. Whether you’re replacing sofa cushions, enhancing car seats, or creating cozy pet beds, this versatile foam delivers stable support and a soft, breathable touch. Available in multiple dimensions, it’s the go-to solution for office chairs, bay window mats, shoulder pads, and all your imaginative endeavors. Elevate durability, comfort, and personalization in every corner of your space.

Meet expectations. Anonymous. US. Tue Sep 15 2026

This outdoor 2-piece cushion set updates your patio furniture with a supportive layer for your afternoon lounging. The seat and back covers are crafted from a blend of polyester and olefin that stands up to weather and fading, making them a reliable choice for your porch or deck seating. These cushions feature a polyurethane foam and polyester fill for a plush feel while you relax outside. The design includes a zipper closure on the removable covers, allowing for easy maintenance. Plus, the reversible construction provides a consistent look on both sides for even wear.

Love these for our back patio chairs. They fit great as replacement cushions. The thick style is very comfortable.. Anita. Scottsdale, AZ. Tue Oct 06 2026

This 2-piece deep seat cushion set adds tailored style and comfort to your seating. Upgraded with a matching cord trim, the set includes one back cushion and one seat cushion designed to fit a variety of lounge furniture. The heavy-duty polyester cover resists water, stains, and UV rays, so it easily withstands everyday elements in your outdoor space. Plus, attached string ties on the seat cushion help keep it securely anchored in place.

Great construction and quality. Anxious to see how they perform. Very pleased!. Debra. Indianapolis, IN. Tue Sep 15 2026

Whether for indoor or outdoor use, our customisable cushions are designed to suit your needs! Made from high-end materials and offering a wide range of customisation options, our cushions combine comfort and versatility.

I was very pleased with the item. Size was just perfect for my needs, quality looks good, color was actually phenomenal (matched well with what showed online). Fabric is nice and smooth zipper for removal/washing. I am really happy with this purchase.. Claudia. Antelope, CA. Sat Aug 29 2026

This outdoor cushion set revitalizes your outdoor seating,designed to bring comfort and style to courtyards,porches,patios,and garden spaces.The set includes 4 seat cushions and 4 back cushions,balancing long-lasting comfort with durability.The 4-inch thick high-resilience foam provides firm support,while fade-resistant fabric with a hidden waterproof layer resists spills,rain,and sun damage.Non-slip bottoms and securing straps keep cushions firmly in place on wicker,metal,or wooden furniture.Concealed zippers allow removable,machine-washable covers for easy cleaning. Whether hosting guests or enjoying a leisurely afternoon outdoors,this set enhances your furniture with refreshed comfort and visual appeal.

I got these for my porch rockers. They are perfect for direct sunlight....my biggest complaint is how very hard it is to put the foam in the covers. The colors are vibrant and the fabric is great for outside, you just wipe them off.. Dania. US. Fri Sep 25 2026

Couch Cushion Support for Sagging Seat 20X20X2 Inches Couch Supports for Sagging Cushions, High Density Foam Sofa Cushion Support Light Grey Set of 3

They were exactly as described however we were trying to "prop up" a less than decent couch that an older family bought against everyone's wishes. I would have kept them and used them if I had a reason.. Thomas. South Lebanon, OH. Tue Oct 13 2026

These outdoor seat and back cushions are designed to elevate your patio furniture with comfort and style. Crafted with Sunbrella® fabric, they offer a soft touch and resist the elements, making them a great addition to your lounge chair, loveseat, or sofa. The cushions are filled with foam for a plush feel, and their reversible design means you can easily flip them for even wear. With a convenient zipper closure, the covers are removable for easy cleaning. These cushions stand up to weather, water, UV rays, and fading, ensuring they maintain their look season after season.

Awesome look. Good quality. Packaged well. I would purchase again.. Laurie. Hickman, NE. Sat Sep 19 2026

Refresh your outdoor seating with cushions designed for everyday comfort and a relaxed patio style. This 7-piece cushion set features supportive foam with a thickness of 3.5-4 inches, which adds a comfortable and inviting feel to your conversation area without compromising its structure. The durable outdoor fabric is resistant to fading, water, and everyday wear, making it perfect for sunny afternoons, weekend gatherings, and relaxed evenings outdoors. Removable zippered covers make cleaning easy, and the versatile design complements a wide range of patio furniture styles. Whether you're replacing worn cushions or giving your outdoor space a seasonal update, this set provides an easy way to bring comfort and a polished look back to your patio. Available in a variety of colors; you can view more product photos and customer-submitted images to learn more.

What a difference from the my old cushions that I used to have. These are absolutely amazing over twice the thickness and how much more professional grade foam cushion. It’s really comfortable... Michael. Hernando, FL. Sun Sep 20 2026

Create an outdoor oasis with Mountlake's fashion-forward looks and long-lasting materials. The soft, shredded foam on the inside feels like you're Lounging on the clouds. Bangladesh fabrics protect your cushions and are engineered to resist fading, stains, and help keep out the rain. Mountlake gives you a premium outdoor experience. Enjoy peace of mind with their hassle-free warranty program. If you experience a problem with the materials or workmanship within the warranty period, they invite you to file a simple claim on their website, backed by their Customer Support Team.

I am happy with the color and how the cushion fits in the cover. Seems like there is still a little room for the cushion to expand, it has only been less than 24 hours. I do love the cover fabric.. Anna. Bluffton, SC. Wed Oct 21 2026

Add a splash of style to your outdoor space with this 22.5-inch by 22.5-inch Boxed Edge Deep Seat Cushion. Whether you're looking to add eye-catching color or increase comfort, this outdoor patio cushion will give you the best of both. Welt-accented boxed edges create a modern, tailored look on the outside, while layered polyester fiber on the inside adds comfortable cushioning to outdoor furniture. Gusts of wind and wiggly children are no match for these outdoor cushions, thanks to corner fabric ties that keep it secured to your patio chair. This chair seat cushion is made with outdoor fabric that's water-, mold-, mildew- and stain resistant to stay looking great all season long. Versatile and vibrant, this patio cushion can be flipped for use on both finished sides and has UV-protected fabric to prevent fading after hours of fun in the sun. If a soda splashes or BBQ sauce gets spilled at your next outdoor event, caring for your new cushion is as easy as spot cleaning with soap, water and a soft cloth.

Looks great! Very thick and comfortable cushion. Great quality for the price.. Maureen. Wilmington, DE. Sat Sep 26 2026

The 14-Piece Cushion set includes 6 seat cushions (26" x 26" x 5"), 6 backrest cushions (25.6" x 14.5" ), and 2 Corner Cushions(21" x 14.5" ). The seat cushion is filled with high-resilience 35D foam, providing excellent support and maintaining its shape for up to 5 years. The outdoor cushions are covered with 100% polyester fabric featuring a durable, UV-resistant coating that provides water resistance, sun protection, and fade resistance—ideal for outdoor use. Adjustable straps keep the chair cushions securely in place, while the outdoor chair cushion also features a non-slip latex bottom to prevent slipping. The cushion covers are equipped with hidden YKK zippers for easy removal and cleaning, and double-stitched seams enhance durability, preventing water from seeping through. Piped edges on both the seat and back cushions maintain a structured, polished look even after long-term use.

Love it so much!!! It’s perfect! Really thick cushion, and really good quality! Worth the price for sure! . Anonymous. Mon Aug 10 2026

This is perfect! I was so happy to find this. The exact size was available to for my outdoor chaise. It’s great quality, thick and comfortable.. Michelle. Basking Ridge, NJ. Sun Oct 18 2026

This seat and back cushion set brings a layer of comfort to your favorite indoor or outdoor seating. The exterior is wrapped in polyester fabric that stands up to the elements while remaining easy to clean. Designed for versatility, these cushions feature a foam and polyester fill for a supportive feel as you relax. They are built with a reversible design, allowing you to flip them over for even wear. Plus, the removable covers feature zipper closures to make maintenance a breeze.

I’m delighted with my new cushions. Inherited these chairs, and the existing cushions were worn out, so took a chance on these. They make the chairs beautiful again!. Robin. OR. Fri Aug 07 2026

This 2-pack 72×24in high-density foam pad revives saggy sofas, benches and bay windows. Vacuum compressed for easy shipping; remove film and wait 24–48 hours for full recovery. 1–6 inch thickness options available, freely cuttable to fit furniture. It features strong support, fast rebound and long durability, ideal for indoor and patio use. You can renew two cushions or keep one spare.

Great product, definitely high density but not uncomfortably stiff. Excellent Price. Sally. Raleigh, NC. Mon Aug 03 2026