Cloud 9 Cirrus 9mm Stair Runner Underlay The Cloud 9 Cirrus 9mm underlay is a high-density PU foam underlay made in England, designed for stair runners that need durability, comfort, and long-lasting support. With a 9mm thickness and density of 116kg/m³, it offers superior cushioning and excellent shock absorption, helping to extend the life of your stair carpet. It also delivers strong thermal insulation with a 2.6 tog rating and reduces impact noise by 39–41dB, making stairs warmer and quieter. Sized specifically for stair runners—67cm wide in 5m, 5.5m, 6m, and 11m lengths—this underlay reduces waste and simplifies installation. It features stretch fit technology for a smooth and secure fit and meets UK durability standards (BS EN 14499). If you’re looking for a firm, comfortable, and efficient base for your stair runner, Cloud 9 Cirrus 9mm is a reliable choice.

Suitable for indoor use under stair runners. Trim to fit and check placement before installation. Spot clean with a damp cloth if needed.

Something not quite right? You have 28 days from the day you receive it, to send something back.

Please note, we cannot offer refunds on fashion face masks, cosmetics, pierced jewellery, adult toys, and swimwear or lingerie if the hygiene seal is not in place or has been broken.

Items of footwear and/or clothing must be unworn and unwashed with the original labels attached. Also, footwear must be tried on indoors. Items of homeware including bedlinen, mattresses, and toppers, and pillows must be unused and in their original unopened packaging. This does not affect your statutory rights.

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