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Heavy Duty Couch Cushion Support Board for Sagging Sofa, 21.5''x48'' Extra Thick Solid Wood Under Couch Insert with Anti-Slip Dots, Repair Sagging Spring Sofa and Replace Worn Cushions

  • Based on 4,766 reviews
Condition: New
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Availability: Only 5 left in stock, order soon!
Fulfilled by Amazon

Arrives Friday, Jan 9
Order within 11 hours and 43 minutes
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Size: 48" x 21.5" - Loveseat


Features

  • BIG UPGRADE - LAVEVE couch support is upgraded with multilayer solid wood boards, providing firm yet comfortable seating. Each board can withstand up to 400 lbs, ensuring long-lasting durability. The foldable, widened design fits different sofa sizes and offers flexible adjustment. Perfectly solves the problem of sagging couch cushionsmaking your sofa feel as supportive and new as day one.
  • FIT FOR ALL SOFA TYPES - Offered in 8 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.

Brand: LAVEVE


Assembly Required: No


Seat Depth: 20.5 inches


Weight Limit: 400 Pounds


Seating Capacity: 2


Product Dimensions: 20.5"D x 0.4"W x 45"H


Item Weight: 5 Pounds


Type: Loveseat


Color: Black


Style: Contemporary


Brand: ‎LAVEVE


Assembly Required: ‎No


Seat Depth: ‎20.5 inches


Weight Limit: ‎400 Pounds


Product Dimensions: ‎20.5"D x 0.4"W x 45"H


Item Weight: ‎5 Pounds


Type: ‎Loveseat


Color: ‎Black


Special Feature: ‎Folding


Upholstery Fabric Type: ‎Nylon


Room Type: ‎Living Room


Arm Style: ‎Armless


Pattern: ‎Solid


Back Style: ‎Cushion Back


Size: ‎48" x 21.5" - Loveseat


Material: ‎Wood


Cushion Style: ‎Knife Edge


Number of Pieces: ‎1


Cushion has removeable cover: ‎false


Product Care Instructions: ‎Minimal cleaning required. Keep dry and avoid direct contact with cleaning agents.


Seat fill material: ‎Foam


Indoor/Outdoor Usage: ‎Indoor


Furniture leg material: ‎Wood


Seat back fill material: ‎Foam


Orientation: ‎modular


Included Components: ‎/


Theme: ‎Solid


Fill Material: ‎wood


Warranty Type: ‎Limited


Item Firmness Description: ‎Firm


Recommended Uses For Product: ‎Sofa


Material Feature: ‎Durable and long-lasting


Component Connector Assembly: ‎Not Required


Seat Cushion Configuration: ‎Multiple Cushion Seat


Upholstery Color: ‎Black


Includes All Assembly Tools: ‎No


Is Customizable: ‎No


Cushion Construction: ‎Solid wood frame with woven nylon outer layer


Is Modular: ‎Yes


Set Name: ‎21.5'' x 48''


Minimum Weight Capacity: ‎400 Pounds


Assembly Instructions Description: ‎No tools required. Remove cushions, place the support on the frame, and put cushions back.


Item Weight: ‎5 pounds


Item model number: ‎20.5‘’x45‘’ sofa support


Date First Available: September 20, 2022


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Jan 9

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.

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Top Amazon Reviews


  • Works perfectly
Size: 70" x 21.5" - Couch
This is a really great product. Fit perfectly on my couch and the support it provides is fantastic! It's a night and day difference!
Reviewed in the United States on December 28, 2025 by Amazon Customer

  • Excellent product that TRULY works!
Size: 72" x 24" - Deep Couch
This product works. My expensive couch is only a year old (le sigh) and I've already had to resort to flipping the cushions. I got this product and it immediately made my couch feel brand new and firm again. The sagging is gone and it's sturdy and the cushions are now the same level as the corner cushions, which are generally not sit on. This is an excellent product that does exactly as it says it does. I've been sending it to friends and family as a result. ... show more
Reviewed in the United States on August 7, 2025 by Alicia

  • Measure your furniture before ordering
Size: 72" x 24" - Deep Couch
Just received and I am very pleased with the results. Fits my couch perfectly, was a snap to install and it has given the support needed. I’m hopeful it will last a few years. Easy fix and cost effective.
Reviewed in the United States on June 29, 2025 by N. Montgomery

  • Good investment! New life for my furniture.
Size: 70"x21.5" & 48"x21.5"- Sectional Couch
We have a loveseat and sofa that are in great shape and look good, BUT they had gotten too saggy under the cushions. I figured it would be worth a try to see if these would help. I bought the supports on a sale day and it was worth it. They have made a big difference in the comfort. You no longer feel like you are falling down in to our furniture. They don't show and look good even when you pick up the cushions. It looks like the black cloth that was already under the cushions. On my furniture they fit on the supports under the cushions perfectly and seem sturdy. ... show more
Reviewed in the United States on October 6, 2025 by Lbiglane

  • This worked!
Size: 90" x 25" - Oversized sofa
This support did exactly what I needed it to do! We have an oversized sofa sectional with two large chaises on either end. One of the chaises is the popular place to sit and has sunk in only where your bottom goes near the back cushions, so the leg area is still firm. There was a definitive "drop off" at the seat area. I spread this support out by 7 beams across the seat area along the wood frame, then doubled it over on itself to really fill in the depressed section. I thought it would be too hard and firm, but it worked perfectly, gave extra support, and brought that part of the cushion back up to be in alignment with the others. Very happy this worked for a $70 fix instead of a brand new couch! ... show more
Reviewed in the United States on December 8, 2025 by Amroge

  • It will do the job with two.
Size: 90" x 25" - Oversized sofa
I bought two of these, the 81 inch and 95 inch, because my couch size was kind of in between the two; neither would've been an exact fit. I was initially going to return one and keep the one that fit better, however, I thought layering them might give extra support since I have a deep couch (although it seems average to me). I ended up putting the 95 inch on the bottom and the 81 inch on the top to get the coverage I needed for my couch. The product itself feels sturdy and I tested them out after putting them on my couch and I can tell the difference. So as of now this product feels like it will be sufficient; however, I'm leaving a three star review due to the fact that I had to purchase two of the product to do the job of one. I wish there would have been more options for the depth of the product, as well as the length so that I could have needed just one. I also will say I browsed for quite a while on Amazon trying to find a similar product that would fit my couch, however it appears other makers have very little variety in their sizes as well, so I don't want to be too harsh with my review. ... show more
Reviewed in the United States on May 9, 2025 by Alesia Crossland Alesia Crossland

  • Stopped My Oversized Love Seat From Sinking
Size: 48" x 21.5" - Loveseat
Excellent product; it immediately changes the support of the love seat. I had a sag in my 13-year-old love seat that is in otherwise excellent condition outwardly. No assembly is required; simply remove cushions, unfold the support, and insert. No cutting or measuring required. I wish it had 2-3 more supports for my oversized love seat, but otherwise a solid solution for sagging sofa supports. Great price and adds years to otherwise good older furniture pieces. ... show more
Reviewed in the United States on December 14, 2025 by Nikki Nikki

  • Feels like a new couch!!
Size: 48" x 21.5" - Loveseat
Definitely a must have if you're couch is starting to "sink" from either it being old or just having kids and animals jumping on it. Fits perfectly and makes the couch feel new. Very sturdy and worth buying.
Reviewed in the United States on December 4, 2025 by ThatOneB

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