MYLIFESION Heavy Duty Couch Cushion Support Board for Sagging Sofas, 21.7''x54'' Thick Solid Wood Sofa Support Board to Fix Sinking Seats, Wooden Support Board to Repair Sagging Spring Sofa

ADJUSTABLE AND ROUNDED EDGE DESIGN: This 21.7''x54'' couch support board for sagging seat has 16 slats, each slat width is 3.93 inches and each elastic band space is 0.63 inches. Which allows for free length adjustment and trimming, accommodating various sofa sizes. Its unique rounded edge design provides enhanced protection for furniture surfaces, preventing scratches or bumps | UPGRADED 0.4" PREMIUM WOOD BOARD: This under couch cushion support board is crafted from 0.4-inch high-quality engineered wood. Its significantly thicker and more durable. This sturdy sofa cushion support easily supports up to 400 lbs. It provides a rock-solid foundation that won't sag or fail, even under heavy, consistent weight | INSTANTLY FIX YOUR SAGGING COUCH: This couch support board is the ultimate solution to revive your furniture. By providing a solid, stable base under sagging cushions, it restores the original firmness and comfort of your couch, helps evenly distribute pressure maintain a healthy sitting posture, ensuring a better experience for your spine | QUICK SETUP AND FOLDABLE DESIGN: No tools required! Just remove cushions, lay the couch support board flat on the sofa frame, and replace the cushions. The intuitive foldable design allows you to easily adjust the length, and folds down in seconds for space-saving storage | Durable and Structurally Stable: This cushion support for couches and sofas has undergone a high-temperature and high-pressure processing enhances resistance to deformation and cracking, ensuring the product remains flat and sturdy even with prolonged use, effectively extending the sofa's lifespan.If you have any questions, reach out to our support team and well make it right