Wall-to-wall, without the wall-to-wall
One continuous cushioned field under the entire rug — no seams, no cold spots.

The room-size 9x12 — over a hundred square feet of quarter-inch felt and silicone under the biggest rug in the house.
Room-size comfort: the 9x12 felt-and-silicone pad for statement rugs.
A 9x12 cushioned pad is the closest a hard-floored room gets to wall-to-wall comfort while keeping its floorboards on show. The felt sheet spans essentially the entire seating zone of a large lounge or the full footprint of a primary bedroom, so every step anyone takes in the room lands on cushion — no firm-edge transitions, no bare patches under the coffee table, one continuous acoustic blanket over the loudest surface in the home.
Sheets this large usually punish buyers at installation, but the glue-free construction rolls out flat, the 99-plus silicone strips take hold without any adhesive, and the whole thing trims to the room’s quirks — radiator alcoves, hearth stones, a rug that turns out to be 8ʹ11ʹ — with nothing more than scissors.
One continuous cushioned field under the entire rug — no seams, no cold spots.
A hundred-plus square feet of felt tames footfall, echo and downstairs complaints at once.
The long-bar silicone grid keeps even this sheet square to the room through years of traffic.
Big rugs are expensive rugs; the felt layer isolates them from grit, grind and backing wear.
Fray-free trimming handles alcoves, hearths and the gap between nominal and actual size.
Extra-thick grip for large living-room rugs — stops sliding, bunching and curled corners.
Non-slip grip for mid-size area rugs — trims easily with scissors for a perfect fit.
The entry-size gripper that keeps door mats and small rugs planted on hardwood and tile.