---
product_id: 538000522
title: "Jin&Bao Couch Cushion Support for Sagging, Heavy Duty Solid Wood Sofa Cushion Support 21＂-81＂ for 3 Seats Sofa- Couch Supporter Under The Cushions Board 100% Saver Sagging | Heavy Duty, Solid Wood, Under Cushions Board, 100% Saver Sagging"
brand: "jin&bao"
price: "$186.77"
currency: USD
in_stock: true
reviews_count: 13
category: "Jin&Bao"
url: https://www.desertcart.us/products/538000522-jin-and-bao-couch-cushion-support-for-sagging-heavy-duty
store_origin: US
region: United States of America
---

# Adjustable 21"-81" length fits most 3-seat sofas Solid wood core for unmatched durability Easy 1-minute foldable installation Jin&Bao Couch Cushion Support for Sagging, Heavy Duty Solid Wood Sofa Cushion Support 21＂-81＂ for 3 Seats Sofa- Couch Supporter Under The Cushions Board 100% Saver Sagging | Heavy Duty, Solid Wood, Under Cushions Board, 100% Saver Sagging

**Brand:** jin&bao
**Price:** $186.77
**Availability:** ✅ In Stock

## Summary

> 🛋️ Reinvent your sofa’s comfort—because your back deserves the best!

## Quick Answers

- **What is this?** Jin&Bao Couch Cushion Support for Sagging, Heavy Duty Solid Wood Sofa Cushion Support 21＂-81＂ for 3 Seats Sofa- Couch Supporter Under The Cushions Board 100% Saver Sagging | Heavy Duty, Solid Wood, Under Cushions Board, 100% Saver Sagging by jin&bao
- **How much does it cost?** $186.77 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/538000522-jin-and-bao-couch-cushion-support-for-sagging-heavy-duty)

## Best For

- jin&bao enthusiasts

## Why This Product

- Trusted jin&bao brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Posture Perfect:** Supports correct sitting posture to keep your back and spine happy during long lounging sessions.
- • **Effortless Setup:** Install in under a minute—no tools, no hassle, just instant sofa revival.
- • **Fits Like a Glove:** Extended 21x81 inch size adapts perfectly to your 3-seat couch—no more guessing.
- • **Sag-Free Seating, Guaranteed:** Eliminate sofa sagging and back pain with robust solid wood support.
- • **Built to Last, Backed by Warranty:** Heavy-duty construction with a 10-year warranty for peace of mind.

## Overview

The Jin&Bao Couch Cushion Support is a heavy-duty, solid wood board designed to prevent sofa sagging and alleviate back pain. Measuring 21 by 81 inches, it fits most 3-seat sofas and features durable nylon fabric for added strength. With easy foldable installation and a 10-year warranty, it offers a long-lasting, hassle-free solution to restore your sofa’s firmness and support healthy posture.

## Description

Jin&Bao Sofa Support For Sagging CushionsThe sturdy wood and comfortable nylon fabric provide you with a healthy and happy home sofa life.This Sofa Cushion Support Board Details：Inner layer Material: Strong Solid Wood Outer layer Material：Thicken Woven NylonLength: 81 inchWidth: 21 inchThickness: 0.4 inchFor any questions, please feel free to contact us.

Review: Quality Construction w/Adequate Support - Quality product. Sturdy with clean lines. Works as described for reinforcement of old couch springs. I would by this product again.
Review: Works great for my sofa cushions! - Made my couch like new again. Am very happy with this and it keeps the cushions from sagging down like they were doing. Adds firmness and support and I rotate the cushions every month as always sit on one end of the sofa. Highly recommend this cushion support. Was considering buying a new sofa and glad I found these.

## Features

- Why choose it: The updated couch support can perfectly solve problem of sofa sagging and the resulting back pain.The new generation boards has the following three advantages: 1.It uses solid wood,and we promise it can bear any weight without breaking. 2.We promise product will not break after several months of use,and the product has a 3-year warranty. 3.We have lengthened and widened the size of the pads to accommodate more sofa size.You can buy without worrying about the shortage of length.
- Material and Size: 11 PCS solid wood and 300D oxford cloth, Size: 21x81 inches, which is applicable to three seats couch . We provide 3 sizes of support for armchair, loveseat and 3 seats sofa, please choose according to your needs.
- Solution to back pain: When you change into this new sofa support, you will not sagging when sitting on the sofa. The correct sitting posture ensures that you will not have back and spinal pain. The joy of the sofa will back again!
- Easy installation: Order the right size support , take away the cushion, and lay the support on the sofa, which can be folded according to the size. 1 minute to complete the installation!
- Warranty: Jin&Bao provides after-sales service support, and this product includes a 10-year warranty.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BXGXDNHP |
| Accent Color | Grey |
| Additional Features | Folding |
| Age Range Description | Adult |
| Arm Style | Armless |
| Assembly Instructions Description | Easy installation: Order the right size support, take away the cushion, and lay the support on the sofa, which can be folded according to the size. |
| Back Cushion Removability | Attached |
| Back Style | Cushion Back |
| Best Sellers Rank | #192,227 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #76 in Sofa Replacement Parts |
| Brand Name | Jin&Bao |
| Color | Grey |
| Component Connector Assembly | Not Required |
| Cushion Style | Rectangular |
| Customer Reviews | 4.5 4.5 out of 5 stars (2,166) |
| Fill Material | Foam |
| Frame Color | Grey |
| Frame Material Type | Wood |
| Furniture Leg Material | Wood |
| Has Removable Seat Cushion Cover | false |
| Included Components | Wood |
| Included Throw Pillow Cover Material | Nylon |
| Indoor Outdoor Usage | Indoor |
| Is Customizable? | No |
| Is Modular | No |
| Item Depth | 21 inches |
| Item Dimensions | 21 x 81 x 0.4 inches |
| Item Dimensions D x W x H | 21"D x 81"W x 0.4"H |
| Item Firmness Description | Firm Support |
| Item Type Name | Couch Cushion Support Board |
| Manufacturer | Jin&Bao |
| Manufacturer Grade | Jin&Bao's Standard Grade |
| Manufacturer Part Number | 1 |
| Material Features | Solid wood: sturdy, Nylon: durable |
| Material Type | Wood |
| Mfg Warranty Type (i.e. Parts, Labor) | Standard Warranty |
| Model Number | 21''Wx81"L - 4 Seats Sofa |
| Number of Pieces | 9 |
| Pattern | Solid |
| Product Care Instructions | Wipe Clean with Dry Cloth |
| Reclining Position Count | 1 |
| Recommended Uses For Product | Sofa |
| Required Assembly | No |
| Room Type | Living Room |
| Seat Cushion Configuration | Multiple Cushion Seat |
| Seat Cushion Quantity | 11 |
| Seat Cushion Removability | Attached |
| Seat Depth | 21 inches |
| Seat Fill Material | Foam |
| Seat Height | 0.4 Inches |
| Seating Capacity | 4 |
| Shape | Rectangular |
| Size | 21''Wx81"L |
| Sofa Type | Standard |
| Style Name | Cushion Back |
| Upholstery Cleaning Code | W |
| Upholstery Color | Grey |
| Upholstery Fabric Type | Nylon |
| Warranty Type | Standard Warranty |

## Product Details

- **Assembly Required:** No
- **Brand:** Jin&Bao
- **Color:** Grey
- **Product Dimensions:** 21"D x 81"W x 0.4"H
- **Seat Depth:** 21 inches
- **Seat Height:** 0.4 Inches
- **Seating Capacity:** 4
- **Special Feature:** Folding
- **Style:** Cushion Back
- **Type:** Standard

## Images

![Jin&Bao Couch Cushion Support for Sagging, Heavy Duty Solid Wood Sofa Cushion Support 21＂-81＂ for 3 Seats Sofa- Couch Supporter Under The Cushions Board 100% Saver Sagging | Heavy Duty, Solid Wood, Under Cushions Board, 100% Saver Sagging - Image 1](https://m.media-amazon.com/images/I/71SRWlBzoEL.jpg)
![Jin&Bao Couch Cushion Support for Sagging, Heavy Duty Solid Wood Sofa Cushion Support 21＂-81＂ for 3 Seats Sofa- Couch Supporter Under The Cushions Board 100% Saver Sagging | Heavy Duty, Solid Wood, Under Cushions Board, 100% Saver Sagging - Image 2](https://m.media-amazon.com/images/I/71H8EKvVQGL.jpg)
![Jin&Bao Couch Cushion Support for Sagging, Heavy Duty Solid Wood Sofa Cushion Support 21＂-81＂ for 3 Seats Sofa- Couch Supporter Under The Cushions Board 100% Saver Sagging | Heavy Duty, Solid Wood, Under Cushions Board, 100% Saver Sagging - Image 3](https://m.media-amazon.com/images/I/81myPTlfDbL.jpg)
![Jin&Bao Couch Cushion Support for Sagging, Heavy Duty Solid Wood Sofa Cushion Support 21＂-81＂ for 3 Seats Sofa- Couch Supporter Under The Cushions Board 100% Saver Sagging | Heavy Duty, Solid Wood, Under Cushions Board, 100% Saver Sagging - Image 4](https://m.media-amazon.com/images/I/71CQhEWC6VL.jpg)
![Jin&Bao Couch Cushion Support for Sagging, Heavy Duty Solid Wood Sofa Cushion Support 21＂-81＂ for 3 Seats Sofa- Couch Supporter Under The Cushions Board 100% Saver Sagging | Heavy Duty, Solid Wood, Under Cushions Board, 100% Saver Sagging - Image 5](https://m.media-amazon.com/images/I/71CwxV4ZUGL.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Quality Construction w/Adequate Support
*by S***E on January 31, 2026*

Quality product. Sturdy with clean lines. Works as described for reinforcement of old couch springs. I would by this product again.

### ⭐⭐⭐⭐⭐ Works great for my sofa cushions!
*by M***E on December 7, 2025*

Made my couch like new again. Am very happy with this and it keeps the cushions from sagging down like they were doing. Adds firmness and support and I rotate the cushions every month as always sit on one end of the sofa. Highly recommend this cushion support. Was considering buying a new sofa and glad I found these.

### ⭐⭐⭐⭐ Effective solution for temporary fix
*by J***I on April 30, 2024*

This Jin&Bao Couch Cushion Support offers a practical solution for sagging couch cushions. Here's my breakdown: Pros: Reduced Sagging: It effectively firms up the seat area, minimizing the sinking feeling and providing better support. Sturdy Construction: The solid wood construction feels durable and should withstand significant weight. Multiple Sizes: The wide range of size options ensures a good fit for various couch sizes. Easy Installation: Simply placing the board under the cushions is straightforward and requires no tools. Cons: Potential Shifting: Some users report the board shifting slightly over time, potentially causing uneven support. Limited Comfort Improvement: While it addresses the sagging, it might not significantly enhance overall comfort, especially for couches with worn-out cushions. Overall: This Jin&Bao support board is a good option for temporarily reviving a sagging couch and extending its lifespan. However, it might not be a long-term solution for achieving ultimate comfort, especially if the cushions themselves are significantly worn.

## Frequently Bought Together

- Jin&Bao Wider Couch Cushion Support for Sagging, Heavy Duty Solid Wood Sofa Cushion Support 23＂- (21-81)＂Couch Supporter Under The Cushions/Sofa Bed Board 100% Saver Sagging
- 3 Pcs 20 x 20 Inch Furniture Seat Support - High-Density Foam Couch Sofa Cushion Support for Sofa Couch Loveseat Chair ​Sagging Sea

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-05-08*