---
product_id: 624887052
title: ""
brand: "gorilla grip"
price: "¥16021"
currency: JPY
in_stock: true
reviews_count: 8
category: "Gorilla Grip"
url: https://www.desertcart.jp/products/624887052-
store_origin: JP
region: Japan
---

# Slip-resistant PVC grip dots 0.43" thick premium plywood 21.5" x 70" wide sofa coverage 

**Brand:** gorilla grip
**Price:** ¥16021
**Availability:** ✅ In Stock

## Summary

> 🛋️ Reinvent your sagging sofa—comfort that commands attention!

## Quick Answers

- **What is this?**  by gorilla grip
- **How much does it cost?** ¥16021 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/624887052-)

## 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

- • **Effortless Upgrade:** Tool-free, foldable design lets you install in minutes and customize fit for loveseats or sectionals.
- • **Supports Up to 400 lbs:** Engineered to hold heavy loads, restoring your sofa’s original comfort and structure.
- • **Maximized Couch Coverage:** Generous 21.5" width spans more surface area, reinforcing your entire seating zone.
- • **Stay-Put Grip Technology:** Hundreds of slip-resistant PVC dots lock the board in place—no more shifting cushions.
- • **Heavy-Duty Plywood Backbone:** Premium .43" thick plywood delivers unmatched durability and support for sagging sofas.

## Overview

The GORILLA GRIP Heavy Duty Couch Cushion Support Board is a robust, .43-inch thick plywood panel measuring 21.5 by 70 inches, designed to reinforce sagging sofas. 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, making it the go-to solution for restoring comfort and extending the life of your couch.

## 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: Worked perfectly - This was the perfect amount of support for my sectional. I ordered one for my side, amd then a second one for the other side because it made the couch sit like it did new. Flexible support well worh the money. Also the cushions stay put now.
Review: Sturdy & Worth Every PENNY - This product does exactly what it says is going to do and it is very sturdy. It’s very easy to use. In fact I’m gonna order some more for my loveseat and sofas. Excellent product as long as you don’t mind paying for quality and this is a great product. If you wanna spend a little less or a little more and go another route, you could do that too, but it won’t be as sturdy or as affordable as this product.

## 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 |
| Accent Color | Gray |
| Additional Features | Easy To Install, Folding, Stackable, Stay in Place Grip Dots, Tool Free Assembly |
| Age Range Description | Adult |
| Arm Style | Armless |
| Assembly Instructions Description | Already Assembled |
| Assembly Required | No |
| Back Style | Backless |
| Best Sellers Rank | #3,035 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #1 in Sofa Replacement Parts |
| Brand | GORILLA GRIP |
| 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 out of 5 stars 3,530 Reviews |
| Fill Material | Heavy Duty .43" Plywood Boards |
| Frame Color | Gray |
| Furniture Leg Material | Engineered Wood |
| Has Removable Seat Cushion Cover | false |
| Included Components | Rejuvenator Board |
| Includes All Assembly Tools | No |
| Indoor Outdoor Usage | Indoor |
| Is Customizable? | No |
| Is Modular | Yes |
| Item Depth | 21.5 inches |
| Item Dimensions | 21.5 x 70 x 0.43 inches |
| Item Dimensions D x W x H | 21.5"D x 70"W x 0.43"H |
| Item Firmness Description | supportive |
| Item Weight | 9.1 Pounds |
| Manufacturer | Hills Point Industries, LLC |
| Manufacturer Part Number | 840316706964 |
| Material Features | Slip-resistant PVC grip dots |
| Material Type | Engineered Wood |
| Minimum Weight Capacity | 181.4 Kilograms |
| Model Number | 840316706964 |
| 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 Quantity | 1 |
| 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 |
| Weight Limit | 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

![ - Image 1](https://m.media-amazon.com/images/I/71vlBPmRHCL.jpg)

## Available Options

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

## 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

### ⭐⭐⭐⭐⭐ Worked perfectly
*by M***S on February 27, 2026*

This was the perfect amount of support for my sectional. I ordered one for my side, amd then a second one for the other side because it made the couch sit like it did new. Flexible support well worh the money. Also the cushions stay put now.

### ⭐⭐⭐⭐⭐ Sturdy & Worth Every PENNY
*by N***N on March 8, 2026*

This product does exactly what it says is going to do and it is very sturdy. It’s very easy to use. In fact I’m gonna order some more for my loveseat and sofas. Excellent product as long as you don’t mind paying for quality and this is a great product. If you wanna spend a little less or a little more and go another route, you could do that too, but it won’t be as sturdy or as affordable as this product.

### ⭐⭐⭐⭐⭐ They work!!!
*by T***� on March 3, 2026*

Amazing perfect for my couch!!! No sagging, no stuffing pillows underneath the cushions. My couch is 11yrs old. Been through all my kids and my days of couch potato. Now my couch is restored, looks nice and finally is comfortable again!!! I give the “gorilla slats”are a must for older couches!!!!

## 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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**Shop now:** [https://www.desertcart.jp/products/624887052-](https://www.desertcart.jp/products/624887052-)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-05-01*