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Extended holiday returns
Returnable until Jan 31, 2027 Learn more
Returnable until Jan 31, 2027 Learn more
This item's return window has been extended for the holiday season: Returnable until Jan 31, 2027
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Availability:
15 left in stock
Arrives
Thursday, Nov 5
At a glance
- Condition
- New
- Size
- 48" x 21.5" - Loveseat
- Model
- 20.5‘’x45‘’ sofa support
- Weight
- 5 lb
- Color
- Black
- Material
- Wood
- Seat Depth
- 21.5 in
- In the box
- couch cushion support
Features 5
- BIG UPGRADE LAVEVE couch support features an ergonomically designed thickness. Its upgraded multilayer solid wood composite structure is designed to effectively solve sagging couch cushions while maintaining the right balance of firm support and comfortable flexibility. Each board supports up to 400 lbs for reliable, long-lasting support.
- FIT FOR ALL SOFA TYPES - Offered in 19 compatible sizes, LAVEVE cushion support fits everything from chairs and loveseats to large sectionals and deep sofas. The foldable couch support is easy to adjust and combine for a perfect furniture fit in any living space.
- ANTI-SLIP OXFORD FABRIC COVER - Wrapped in heavy-duty 600D Oxford fabric with silicone dots for grip. This under couch cushion support stays firmly in place without sliding, keeping your couch cushions and frame stable during daily use.
- SAFE ROUNDED CORNERS - Every edge and corner is carefully rounded and polished, providing safe, comfortable sofa cushion support for families with kids and pets. Works perfectly as a couch cushion replacement, providing firm sofa cushion support and extending your sofas life.
- INSTALL IN SECONDS - The easiest way to fix sagging couch cushionsno tools required. Simply remove cushions, place the under couch cushion support on the frame, and put cushions back. Instantly restore firmness and comfort. Backed by LAVEVEs quality warranty for lasting confidence.
Specs 53
| Brand | LAVEVE |
|---|---|
| Seat Depth | 21.5 inches |
| Seat Height | 0.7 inches |
| Weight Limit | 400 pounds |
| Seating Capacity | 2 |
| Item Weight | 5 pounds |
| Color | Black |
| Special Feature | Folding |
| Upholstery Fabric Type | Nylon |
| Room Type | Living Room |
| Size | 48" x 21.5" - Loveseat |
| Item Depth | 20.5 inches |
| Item Dimensions | 45 x 20.5 x 0.4 inches |
| Brand Name | LAVEVE |
| Additional Features | Folding |
| Number of Pieces | 1 |
| Indoor Outdoor Usage | Indoor |
| Orientation | modular |
| Recommended Uses For Product | Sofa |
| Set Name | 21.5'' x 48'' |
| Number of Items | 1 |
| Item Highlight | Extra Thick Solid Wood Under Couch Insert with Anti-Slip Dots, Repair Sagging Spring Loveseat and Replace Worn Cushions |
| Number of Packs | 1 |
| Unit Count | 1 Count |
| Age Range Description | Adult |
| Item Type Name | Couch Cushion Support for Sagging Sofa |
| Manufacturer | LAVEVE |
| Model Number | 20.5‘’x45‘’ sofa support |
| Manufacturer Part Number | 45 inch sofa support |
| Shape | Square |
| Arm Style | Armless |
| Pattern | Solid |
| Back Style | Cushion Back |
| Cushion Style | Knife Edge |
| Theme | Solid |
| Upholstery Color | Black |
| Finish Types | Fabric |
| Weight Capacity Maximum | 400 pounds |
| Item Firmness Description | Firm |
| Seat Cushion Configuration | Multiple Cushion Seat |
| Minimum Weight Capacity | 400 pounds |
| Frame Material Type | Wood |
| Material Type | Wood |
| Has Removable Seat Cushion Cover | false |
| Product Care Instructions | Minimal cleaning required. Keep dry and avoid direct contact with cleaning agents. |
| Seat Fill Material | Foam |
| Furniture Leg Material | Wood |
| Seat Back Fill Material | Foam |
| Material Features | Durable and long-lasting |
| Cushion Construction | Solid wood frame with woven nylon outer layer |
| Warranty Type | Limited |
| Component Connector Assembly | Not Required |
| Assembly Instructions Description | No tools required. Remove cushions, place the support on the frame, and put cushions back. |
No specs match.
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Thursday, Nov 5
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
No more sagging cushions!!
Size: 70" x 21.5" - Couch
I honestly wasn’t expecting such a big difference, but these support boards completely brought my couch back to life. The cushions used to sink in and feel uneven, especially in the middle, and now everything feels firm, supportive, and comfortable again. Installation took just a couple of minutes — literally unfold and place them under the cushions. The boards feel very sturdy and well made, not flimsy like some cheaper options. They stay in place nicely and instantly improved both the comfort and appearance of the couch. It even helped with back support while sitting for longer periods. For the price, this was an amazing upgrade and saved me from replacing an expensive sofa. Highly recommend to anyone dealing with sagging couch cushions!
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Reviewed in the United States on May 26, 2026 by Craig Ryn
No more sagging couch
Size: 72" x 24" - Deep Couch
Well worth the money. I forgot how it feels to have a couch that doesn’t sag in the middle. The cushion support is great, even a little stiff. Fits really well and doesn’t show underneath the cushions.
Reviewed in the United States on September 7, 2026 by Mariana Abou-Rizk
Makes a great difference instead of buying new foam inserts.
Size: 48" x 21.5" - Loveseat
This was as described, packaged well, and arrived in a timely manner. The boards are very sturdy and nothing like one that I bought previously years ago for my sofa. They are pricey but worth it for the difference they make with better support for your older cushions, It is a better bargain to purchase this board then spending so much more on new foam inserts for your sofa cushions.
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Reviewed in the United States on August 27, 2026 by baba2
Helps bring new life to a sagging situation.
Size: 72" x 24" - Deep Couch
Like most spring sofas and chairs, over time the cushions sag as the springs weaken. This product provides additional support over the springs, and the design permits more movement (slats rather than a solid board). I have tried a thin board, and it was very uncomfortable. This works! It provides a firm seat that is a result of the type of cushion rather than the springs.
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Reviewed in the United States on October 5, 2026 by RAP
Instant difference — made my couch feel brand new again!
Size: 70"x23" & 45"x23"- Sectional Couch
I noticed an immediate difference as soon as I placed these couch cushion support boards under my cushions. My couch feels so much more supported and I’m no longer sinking down into it like before. It also doesn’t feel like it sits so low to the ground anymore, which completely changed the way the couch feels overall. My couch isn’t even three years old yet, and it was really frustrating how much it had already started to sag, especially since it wasn’t cheap. I honestly wish I had bought this sooner. The only small thing is that it does raise the cushions slightly, so you can kind of see the support underneath a little bit depending on how you sit it—but honestly it’s very minor and not noticeable enough to bother me at all. Overall, this was one of the best purchases I’ve made for my home. It completely improved the comfort and structure of my sectional. I’m really happy with it and would definitely recommend it to anyone dealing with a sagging or low-feeling couch.
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Reviewed in the United States on April 15, 2026 by Tyler
Excellent purchase
Size: 70" x 21.5" - Couch
This has changed the ability to sit on the couch! Excellent support! You don’t feel them, however, the couch has been transformed into a whole new couch again! We’re going to purchase ones for love seat and arm chair! Great buy! Will be getting for my bed to! I’ve been sleeping on the couch past few nights because of a bad back and sleeping thru the night is unheard up.. well. 2 nights of almost full sleep! My back feels so much better! Yeah!
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Reviewed in the United States on August 25, 2026 by TLS
White spots found after 1 year.
Size: 72" x 24" - Deep Couch
Product works good initially doesn't always stay in place. But just adjusting cushions and throw blanket on couch today and saw these white spots on the support. Has anyone else found these on theirs? I've had this item since 2025.
Reviewed in the United States on October 5, 2026 by Amazon Customer
Great improvement for sofa. Worth every penny.
Size: 81x 24" - Deep Large Couch
Item was packed well and delivery was very quick. Took longer to unwrap than it did to install on sofa. Definitely improves seating. Love it. Would certainly recommend to anyone in need of a little more support on sofa. I got the 24”x. 81” and it fits perfectly.
Reviewed in the United States on September 15, 2026 by Texas Panda