---
product_id: 684273482
title: "Heavy Duty Couch Cushion Support Board to Fix Sagging Sofas, 21.5\"x70\" Sofa, Thick Plywood Boards Add Strong Seat Supports, Stays in Place, Replacement Stuffing Under Couches, Gray"
brand: "gorilla grip"
price: "C$17324"
currency: NIO
in_stock: true
url: https://www.desertcart.ni/products/684273482-heavy-duty-couch-cushion-support-board-to-fix-sagging-sofas
store_origin: NI
region: Nicaragua
---

# Slip-resistant PVC grip dots 0.43 inch thick premium plywood 21.5 inch wide for max cushion coverage Heavy Duty Couch Cushion Support Board to Fix Sagging Sofas, 21.5"x70" Sofa, Thick Plywood Boards Add Strong Seat Supports, Stays in Place, Replacement Stuffing Under Couches, Gray

**Brand:** gorilla grip
**Price:** C$17324
**Availability:** ✅ In Stock

## Summary

> 🛋️ Reinvent your sofa’s comfort — because sagging seats are so last season!

## Quick Answers

- **What is this?** Heavy Duty Couch Cushion Support Board to Fix Sagging Sofas, 21.5"x70" Sofa, Thick Plywood Boards Add Strong Seat Supports, Stays in Place, Replacement Stuffing Under Couches, Gray by gorilla grip
- **How much does it cost?** C$17324 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ni](https://www.desertcart.ni/products/684273482-heavy-duty-couch-cushion-support-board-to-fix-sagging-sofas)

## 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 installs in minutes—no hassle, just support
- • **Stay-Put Stability:** Hundreds of grip dots prevent shifting, keeping your sofa firm
- • **Max Cushion Coverage:** Wide 21.5" boards cover more surface area for ultimate comfort
- • **Unmatched Durability:** Premium .43" plywood supports up to 400 lbs without sagging
- • **Universal Fit Flexibility:** Foldable & stackable to fit loveseats and various sofa sizes perfectly

## Overview

The GORILLA GRIP Heavy Duty Couch Cushion Support Board is a robust 21.5" wide, .43" thick plywood panel designed to restore sagging sofas with up to 400 lbs weight capacity. Featuring slip-resistant PVC grip dots, it stays securely in place under cushions. Easy to install and foldable for universal fit, it’s the ultimate upgrade for millennial professionals seeking durable, stylish, and hassle-free sofa support.

## Description

ADD STRONG, LONG LASTING SUPPORT TO SOFAS  Easily and quickly upgrade your sagging or broken sofa with our ultra strong, high-quality plywood replacement support board. The Gorilla Grip Board adds extra support and comfort to sofas with sagging frames, cushions or worn out springs. Our boards are 21.5” wide to cover more surface area therefore, providing more cushion supports.  ULTRA DURABLE .43 INCH THICK PLYWOOD BOARDS  Unlike other brands that use MDF or particle board, ours is constructed with high quality .43” thick plywood that is naturally stronger and more durable and stable. Support board can hold up to 400 pounds!  STAY-IN-PLACE GRIP DOTS  Designed to stay in place on sofas, board features hundreds of slip resistant PVC dots on the underside. Dots help grip to sofa frame and prevent board from shifting during daily use.  EASY TO INSTALL  Extremely easy to install fix in minutes; simply remove sagging cushions from couch, unfold board and apply to width of sofa frame with grip dots on the underside, then add cushions back to sofa on top of board.  FOLDABLE AND STACKABLE FOR UNIVERSAL FIT  Boards are available in standard and oversized sofa sizes for a perfect fit but can also be folded and stacked to accommodate loveseats and smaller couches. We recommend measuring your sofa before purchase, measure your sofa seat width from left inside arm to right inside arm.

## 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 |
|---------------|-------|
| Brand | Gorilla Grip |
| Model Number | 840316706964 |
| Color | Grey |
| Product Dimensions | 54.61 x 177.8 x 1.09 cm; 4.13 kg |
| Maximum Weight Capacity | 181.4 Kilograms |
| Material | Polyvinyl Chloride |
| Special Features | Easy To Install, Folding, Stackable, Stay in Place Grip Dots, Tool Free Assembly |
| Item Weight | 4.13 Kilograms |

## Product Details

- **Brand:** Gorilla Grip
- **Assembly required:** No
- **Seat depth:** 54.6 centimeters
- **Seat height:** 0.43 Inches
- **Weight limit:** 181.4 Kilograms
- **Seating capacity:** 1
- **Product dimensions:** 54.6D x 177.8W x 1.1H centimeters
- **Item weight:** 9.1 Pounds
- **Type:** Standard
- **Colour:** Grey

## Images

![Heavy Duty Couch Cushion Support Board to Fix Sagging Sofas, 21.5"x70" Sofa, Thick Plywood Boards Add Strong Seat Supports, Stays in Place, Replacement Stuffing Under Couches, Gray - Image 1](https://m.media-amazon.com/images/I/71vlBPmRHCL.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.

## 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.ni/products/684273482-heavy-duty-couch-cushion-support-board-to-fix-sagging-sofas](https://www.desertcart.ni/products/684273482-heavy-duty-couch-cushion-support-board-to-fix-sagging-sofas)

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*Product available on Desertcart Nicaragua*
*Store origin: NI*
*Last updated: 2026-02-26*