---
product_id: 624887052
title: "GORILLA GRIP Heavy Duty Couch Cushion Support Board to Fix Sagging Sofas, 21.5 x 70 Sofa, Thick Plywood Boards Add Strong Seat Supports, Stays in Place, Replacement Stuffing Under Couches, Grey"
brand: "gorilla grip"
price: "€ 146.85"
currency: EUR
in_stock: true
reviews_count: 13
category: "Gorilla Grip"
url: https://www.desertcart.fr/products/624887052-gorilla-grip-heavy-duty-couch-cushion-support-board-to-fix
store_origin: FR
region: France
---

# Slip-resistant PVC grip dots 0.43" thick premium plywood 21.5" x 70" wide for max coverage GORILLA GRIP Heavy Duty Couch Cushion Support Board to Fix Sagging Sofas, 21.5 x 70 Sofa, Thick Plywood Boards Add Strong Seat Supports, Stays in Place, Replacement Stuffing Under Couches, Grey

**Brand:** gorilla grip
**Price:** € 146.85
**Availability:** ✅ In Stock

## Summary

> 🛋️ Say goodbye to sag and hello to comfort—your sofa’s new best friend!

## Quick Answers

- **What is this?** GORILLA GRIP Heavy Duty Couch Cushion Support Board to Fix Sagging Sofas, 21.5 x 70 Sofa, Thick Plywood Boards Add Strong Seat Supports, Stays in Place, Replacement Stuffing Under Couches, Grey by gorilla grip
- **How much does it cost?** € 146.85 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/624887052-gorilla-grip-heavy-duty-couch-cushion-support-board-to-fix)

## Best For

- gorilla grip enthusiasts

## Why This Product

- Trusted gorilla grip brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Heavy-duty plywood supports up to 400 lbs without warping or breaking.
- • **Effortless Upgrade:** Tool-free, 3-minute installation—no handyman needed.
- • **Stay-Put Stability:** Hundreds of grip dots prevent shifting, keeping your couch perfectly aligned.
- • **Reinforce Your Lounge:** Transforms sagging sofas into firm, supportive seating instantly.
- • **Custom Fit Flexibility:** Foldable and stackable design adapts to loveseats and various sofa sizes.

## Overview

The GORILLA GRIP Heavy Duty Couch Cushion Support Board is a premium .43-inch thick plywood panel measuring 21.5 by 70 inches, designed to reinforce sagging sofas by providing durable, stable support. Featuring slip-resistant PVC grip dots, it stays securely in place under cushions, supports up to 400 pounds, and installs easily without tools. Its foldable and stackable design ensures a universal fit for various sofa sizes, extending the life and comfort of your furniture.

## Description

desertcart.com: GORILLA GRIP Heavy Duty Couch Cushion Support Board to Fix Sagging Sofas, 21.5 x 70 Sofa, Thick Plywood Boards Add Strong Seat Supports, Stays in Place, Replacement Stuffing Under Couches, Grey : Home & Kitchen

Review: YUP! This, is what we didn't know we needed. - I should have purchased this years ago! So we bought a great couch about 13 years ago. We've been so lucky that it has held up amazingly; however, those pesky cushions have been killing our backs, as it's time for a replacement. The problem, we have a 8 y/o son who thinks the couch is his jungle gym. So, no new couch for us until he understands that a couch is for his bottom. I digress... this works wonderfully. Our couch is gray, and you can't tell that the Gorilla Grip in gray is even there. My mom asked if we bought new cushions. It vacuums off easily and will hopefully give us another two years on our couch. We want to buy a new one for the new house. The fit is perfect, and I didn't realize that our couch is as big as it is. Super easy to place under your cushions and no more aching backs and saggy sofa. Would most definitely purchase again.
Review: Possibly the best purchase I have made on desertcart! - I was ready to throw out my sagging couch after just a year of use—the cushions had completely collapsed, and sitting for more than 10–15 minutes aggravated a recent back injury. Replacing an entire sectional felt ridiculous, so I decided to give this couch support board a try. Installation was ridiculously simple: I took the cushions off, unfolded the board, laid it across the frame, and put the cushions back. Literally 3 minutes, no tools needed. The difference was instant—the couch felt brand-new again. I was especially worried about the long chaise lounge section feeling lopsided or weird, but it’s perfectly even. No lumps, no gaps, just firm, level support from one end to the other. Now I can sit comfortably with my laptop and coffee, without any pain.

## Features

- ADD STRONG, LONG LASTING SUPPORT TO COUCHES AND SOFAS: easily and quickly upgrade your sagging couch or sofa with our ultra-strong, high-quality plywood sofa cushion support board; adds extra support and comfort to couches with sagging frames, cushions, or worn-out springs; our sofa support boards are 21.5” wide to cover more surface area, providing more couch cushion support for sagging couch seats
- ULTRA DURABLE .43 INCH THICK PLYWOOD BOARDS: unlike other couch support options that use MDF or particle board, ours is made with premium .43” thick plywood that is naturally stronger and more durable; this heavy-duty couch board support for sagging seats can hold up to 400 pounds
- STAY IN PLACE GRIP DOTS: designed to stay in place on sofas, this under couch cushion support features hundreds of slip resistant PVC dots on the underside; these grip dots help the couch supporter for under the cushions grip to sofa frame and prevent sofa board from shifting during daily use; individual couch board panels feature rounded corners to reduce chance of cover tearing
- EASY TO INSTALL: installation is simple and fast; simply remove the cushions from your sagging couch, unfold the cushion supports for sagging cushions, and lay them across the width of sofa frame with grip dots on the underside; add cushions back to sofa on top of support board
- FOLDABLE AND STACKABLE FOR UNIVERSAL FIT: boards are available in standard sofa furniture sizes for a perfect fit, but can be folded and stacked to accommodate loveseats and smaller couches; we recommend measuring your sofa before purchase; measure your couch seat width from left inside arm to right inside arm; this support board measures 70 inches

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CGBF9441 |
| Additional Features | Easy To Install, Folding, Stackable, Stay in Place Grip Dots, Tool Free Assembly |
| Age Range Description | Adult |
| Arm Style | Armless |
| Back Style | Backless |
| Best Sellers Rank | #2,975 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #1 in Sofa Replacement Parts |
| Brand Name | GORILLA GRIP |
| Color | Grey |
| Component Connector Assembly | Not Required |
| Cushion Construction | Solid Plywood Boards with Grip Dots |
| Cushion Style | Boxed Edge |
| Customer Reviews | 4.6 4.6 out of 5 stars (2,901) |
| Fill Material | Heavy Duty .43" Plywood Boards |
| Frame Color | Gray |
| Frame Material Type | Engineered Wood |
| Furniture Leg Material | Engineered Wood |
| Has Removable Seat Cushion Cover | false |
| Included Components | Couch Cushion Support Board |
| Includes All Assembly Tools | No |
| Indoor Outdoor Usage | Indoor |
| Is Customizable? | No |
| Item Dimensions D x W x H | 21.5"D x 70"W x 0.43"H |
| Item Firmness Description | supportive |
| Item Height | 1.09 centimeters |
| Item Weight | 9.1 Pounds |
| Manufacturer | Hills Point Industries, LLC |
| Material Features | Slip-resistant PVC grip dots |
| Material Type | Engineered Wood |
| Number of Pieces | 1 |
| Pattern | Solid |
| Product Care Instructions | Spot Clean with Damp Cloth, Wipe with Damp Cloth |
| Recommended Uses For Product | Supporting sofas |
| Required Assembly | No |
| Room Type | Guest Room, Home Office, Living Room, Study Room, Sunroom |
| Seat Cushion Configuration | Multiple Cushion Seat |
| Seat Cushion Removability | Removable |
| Seat Depth | 21.5 inches |
| Seat Fill Material | Foam |
| Seat Height | 0.43 Inches |
| Seating Capacity | 4 |
| Shape | Rectangular prism |
| Size | 21.5" x 70" Sofa |
| Sofa Type | Standard |
| Style Name | Modern |
| UPC | 840316706964 |
| Upholstery Color | Grey |
| Weight Capacity Maximum | 400 Pounds |

## Product Details

- **Assembly Required:** No
- **Brand:** GORILLA GRIP
- **Color:** Grey
- **Item Weight:** 9.1 Pounds
- **Product Dimensions:** 21.5"D x 70"W x 0.43"H
- **Seat Depth:** 21.5 inches
- **Seat Height:** 0.43 Inches
- **Seating Capacity:** 4
- **Type:** Standard
- **Weight Limit:** 400 Pounds

## Images

![GORILLA GRIP Heavy Duty Couch Cushion Support Board to Fix Sagging Sofas, 21.5 x 70 Sofa, Thick Plywood Boards Add Strong Seat Supports, Stays in Place, Replacement Stuffing Under Couches, Grey - Image 1](https://m.media-amazon.com/images/I/61jlVgiBW-L.jpg)

## Questions & Answers

**Q: How does this sofa cushion support board help fix a sagging couch?**
A: The sofa cushion support board is designed to add firm, long-lasting reinforcement under sagging cushions. The .43" thick plywood helps restore shape & comfort to couches with worn-out springs or sinking cushions to extend the life of your furniture.

**Q: What is the couch cushion support made of, and how durable is it?**
A: Unlike other supports made with particle board or MDF, this board is crafted from heavy-duty plywood that’s strong, stable, and built to last. Thick panels support up to 400 lbs without bending or breaking, offering superior strength for daily use.

**Q: How does the sofa cushion support board stay in place once installed?**
A: The couch supports for sagging cushions are designed with hundreds of non-slip PVC grip dots on the underside that help keep it securely in place. These stay-in-place grip dots prevent shifting during everyday use.

**Q: Is the couch cushion support board easy to install and fit different couch sizes?**
A: Yes, simply remove your cushions, unfold the support board, place it grip-side down, and put your cushions back on top. The foldable and stackable design allows you to customize the fit for various furniture types, from loveseats to full-size sofas.

## Customer Reviews

### ⭐⭐⭐⭐⭐ YUP! This, is what we didn't know we needed.
*by M***T on January 3, 2026*

I should have purchased this years ago! So we bought a great couch about 13 years ago. We've been so lucky that it has held up amazingly; however, those pesky cushions have been killing our backs, as it's time for a replacement. The problem, we have a 8 y/o son who thinks the couch is his jungle gym. So, no new couch for us until he understands that a couch is for his bottom. I digress... this works wonderfully. Our couch is gray, and you can't tell that the Gorilla Grip in gray is even there. My mom asked if we bought new cushions. It vacuums off easily and will hopefully give us another two years on our couch. We want to buy a new one for the new house. The fit is perfect, and I didn't realize that our couch is as big as it is. Super easy to place under your cushions and no more aching backs and saggy sofa. Would most definitely purchase again.

### ⭐⭐⭐⭐⭐ Possibly the best purchase I have made on Amazon!
*by P***N on November 20, 2025*

I was ready to throw out my sagging couch after just a year of use—the cushions had completely collapsed, and sitting for more than 10–15 minutes aggravated a recent back injury. Replacing an entire sectional felt ridiculous, so I decided to give this couch support board a try. Installation was ridiculously simple: I took the cushions off, unfolded the board, laid it across the frame, and put the cushions back. Literally 3 minutes, no tools needed. The difference was instant—the couch felt brand-new again. I was especially worried about the long chaise lounge section feeling lopsided or weird, but it’s perfectly even. No lumps, no gaps, just firm, level support from one end to the other. Now I can sit comfortably with my laptop and coffee, without any pain.

### ⭐⭐⭐⭐⭐ The Perfect Support For Your Couch
*by M***C on December 13, 2025*

These are very nice supports. They fit the couch perfectly. We bought it for my brother-in-law. His couch is an older couch and he was having a hard time getting up from it. We put the support under the cushions and it was much easier for him to get up. They work great!

## Frequently Bought Together

- GORILLA GRIP Heavy Duty Couch Cushion Support Board to Fix Sagging Sofas, 21.5 x 70 Sofa, Thick Plywood Boards Add Strong Seat Supports, Stays in Place, Replacement Stuffing Under Couches, Gray
- FoamJoy Couch Cushion Support for Sagging Seat - 20" x 20" High-Density Curved Foam Sofa Cushion Support Board, Couch Supporter for Under The Cushions, Grey Set of 3
- LAVEVE 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

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*Product available on Desertcart France*
*Store origin: FR*
*Last updated: 2026-01-26*