High Density Foam Replacement Sofa Cushions

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

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

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

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

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

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

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

Elevate your home comfort and creativity with our High Resilience Foam Sheet. Engineered to disperse pressure evenly and deliver stable, fast-rebound support, this foam maintains its shape without collapsing—even after long hours of use. Boasting a high-density structure that resists deformation, it also features an easy-to-cut design, empowering you to customize it for any project. Whether you’re revamping sofa cushions, crafting a cozy pet bed, or diving into unique DIY endeavors, this versatile foam is up to the task. Available in multiple sizes, it’s the all-in-one solution for furniture decoration, item protection, and all your imaginative pursuits. Bring durability, comfort, and personalization to your space today.

I used this pad to add additional cushy-ness to another seat cushion. It is a very nice addition.. Ann. Columbus Oh. Fri Jun 26 2026

Upgrade your outdoor seating comfort with high-density seat cushion foam designed for durability and long-lasting support. Sized at 20X20X4 inches, this foam insert is ideal for patio chairs, garden benches, outdoor sofas, and lounge seating. Built for everyday use, the foam offers a balanced combination of firmness and comfort while maintaining its shape over time. It resists sagging and flattening, making it a reliable choice for outdoor environments as well as indoor furniture. This versatile foam insert works perfectly as a replacement cushion for patio furniture or for DIY upholstery projects. It can be easily trimmed to fit different furniture sizes and cushion covers. Whether you're refreshing your garden setup or upgrading your seating comfort, this outdoor cushion foam provides dependable support and long-term performance.

Couch Cushion Support for Loveseat Sofa High Density Foam 44"x20" Inches Sofa Couch Supports for Sagging Cushions Light Grey 1PC

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

This couch cushion support board helps restore firmness to sagging sofas and worn seats. Made with a solid wood composite core, it creates reliable support beneath cushions. The foldable design makes it easy to store and organize, and the non-slip fabric cover helps to keep it in place. Simply insert it under cushions for a refreshed seating experience.

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

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

Heavy Duty Couch Cushion Support Board to Fix Sagging Sofas, 21.5 x 78 Oversized Sofa, Thick Plywood Boards Add Strong Seat Supports, Stay in Place Replacement Stuffing Under Couches Gray

Works great. Susan. US. Mon Nov 17 2025

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

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

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

Our stretch cushion covers are designed for outdoor furniture, offering a soft, cozy, and snug fit for most sofa sizes. They fit cushions up to 20-27.5 inches wide (or length) and 2-5 inches high. Available in vibrant pattern colors. These covers are 100% waterproof, protecting your cushions from the elements. Note: Only covers are included, not cushion inserts. Please ensure accurate measurements of your cushions before ordering.

So far so good, super impress with the waterproof fabric and it fits well! Blends really nice with my gray couch. Jaquese. Doswell, VA. Sun Oct 11 2026

The existence of modular sofas allows you to give full play to your imagination. It can be combined into any shape you want and can adapt to the different living needs of each family. Modular sofas are the best sofa choice.

Arrived as expected! Easy installation! Perfect size for small living areas.. Aura. Sun Jun 07 2026

* Size Information There are 3 variant options for this item: Length (L), Width (W), Cushion Thickness (T). All measurements are in inches (1 inch ≈ 2.54 cm). You may select the combination of Cushion Length, Cushion Width and Cushion - L = Length: Total length of the cushion - W = Width: Total width of the cushion - T = Thickness: Thickness of the cushion Please double-check all dimensions before placing your order. This versatile high-density foam pad can breathe new life into old furniture! Available in sizes ranging from 12 to 112 inches and five thickness options (2-6 inches), this ultra-soft yet supportive foam pad can be easily cut into various custom shapes—such as rectangles, triangles, T-shapes, and trapezoids—to fit sofa cushions, dining chair seats, boat cushions, or bay window benches. Shipped in a compressed package, it fully regains its original shape within 48–72 hours. Durable and suitable for daily use—no need to replace your old furniture, just give it a fresh new look!

Our stretch cushion covers are designed for outdoor furniture, offering a soft, cozy, and snug fit for most sofa sizes. They fit cushions up to 20-27.5 inches wide (or length) and 2-5 inches high. Available in vibrant pattern colors. These covers are 100% waterproof, protecting your cushions from the elements. Note: Only covers are included, not cushion inserts. Please ensure accurate measurements of your cushions before ordering.

Looks nice keep the chairs comfortable and clean pleased with fit. Easy to apply and washable.. Madeline. Manhasset, NY. Tue Aug 04 2026

Upgrade your sagging sofa with our Couch Cushion & Sofa Support Slats, 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 35.5” wide, it covers more surface area, helping reinforce worn-out springs, frames, or cushions. Featuring slip-resistant grip dots on the underside, the Slats 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 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, Loveseat and small couches. Be sure to measure the inside arm-to-arm seat width before purchasing. This model measures 63 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.

Exactly what I needed! Fast delivery. I am very satisfied !. Ricardo. Orange, CA. Sun Jan 18 2026

Designed for ultimate comfort and durability, this fully customizable cushion features premium 70D high-resilience foam for exceptional support and rebound. Choose from machine-washable fabric. With robust zippers and endless personalization options, this cushion is built to last and adapt to any space or season.

Sized well, firm, and comfy to rescue a couch whose springs are starting to go while we wait on the newly ordered one.. Tassy. Massachusetts. Sun Aug 30 2026

Elevate your low-back legless sofa with this 3-pack ergonomic headrest set, expertly crafted for tall users and featuring a sturdy metal frame with soft corduroy covers. Custom-fit for sofas ≤28.5" in height, it delivers reliable neck/head support, requires only simple assembly for quick setup (no drilling/permanent mods), and is easy to maintain with a damp cloth wipe—ideal for 3-seat, modular and L-shaped couches.

The support head rests worked exactly as I wanted them to. The backing of the couch I got from Wayfair does not support the cushions so, when I would sit down, my head would just fly back into the wall behind me. These headrests provide the perfect buffer to keep the cushions up straight and make the couch comfortable.. Rebecca. Louisville, KY. Thu Mar 19 2026

Did not inflat right and color was off. Chari. East Grand Rapids, MI. Wed Oct 21 2026

Heavy Duty Couch Cushion Support for Sagging Seat 21.5''x70'', Thicken Solid Wood Sofa Under Cushions Boards, Perfectly Fix and Protect Seat, Extend Life

It doesn’t do anything to help with sagging or support. A waste of money.. Kimberly. Madison Hts, MI. Thu Aug 27 2026

Couch Cushion Supports for Sagging Cushions - Sofa & Couches Seat Saggy Cushion Saver & Lifters, 20x20x2 Couch Supporter for Under The Cushions, 3-Pack, Gray

Stacy, I bought the cushion supports for the new Freda couch and loveseat we just purchased from you. They didn’t help much. I know you offered to take them back and gave me some money but I thought there was something I could do because the couch and loveseat were exactly what I wanted. What I’m asking is please don’t sell them to anyone else. There is something wrong with the fabric. I’ll probably return the couch supports. If you have any other ideas please let me know. Steve Willisms. Steve. Gold Canyon, AZ. Sat Mar 07 2026

Transform your living or outdoor space with our customizable cushions. Designed for ultimate comfort and versatility, these cushions are crafted with high-end materials and offer a wide range of customization options. Whether for indoor or outdoor use, each cushion is tailored to meet your exact needs, combining style, durability, and practicality.

This wad a little more thin than I wanted but the cover is solid with a good fabric. I am satisfied. Anonymous. Tue Sep 15 2026