
Trapezoid Foam Sofa Cushion Support Insert for Sagging Seats,White
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The Epstur is a 50x50x5 cm slab of high-density foam shaped with a trapezoid profile, meant to slide under a sagging seat cushion to firm it up. It is a support insert, not a finished cushion: you trim it to size and hide it beneath existing padding. That makes it a low-effort fix for a dipped sofa or chair seat compared with reupholstering or replacing the furniture. It suits firm-seat seekers, but anyone wanting a plush feel or a ready-to-use cushion should look elsewhere.
In stockSold by Onnaka AutumnReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.
This trapezoid foam insert supports sagging seats on sofas, chairs, lounges and other upholstered furniture. It is made from high-density foam that gives firm support and helps keep seats from sagging.
The trapezoid profile is shaped to line up with sofa and chair cushions and spread weight evenly. It goes under the existing cushion to add support and ease pressure on the hips and back.
The insert is lightweight. It slides under existing padding without tools and can be trimmed to fit a specific seat size.




