Tredaire Dreamwalk underlay labelled 3.13 tog beside Duralay Technics 5 underlay labelled 0.56 tog.

Carpet Underlay Tog Ratings Explained

Carpet Underlay

Understand high and low tog, compare real underlay specifications and calculate the combined thermal resistance of carpet and underlay over heated floors. 

Partially unrolled ThermalStream carpet underlay with cream perforated facing and red printed grid.

Best Carpet Underlay for Underfloor Heating

Carpet Underlay

Choose a compatible low-tog carpet underlay, calculate the complete floor's thermal resistance and check the requirements of your heating system. 

PU foam with brown printed facing, black woven crumb rubber and red moulded sponge rubber underlay samples.

PU Foam vs Rubber Carpet Underlay: Which Is Best?

Carpet Underlay

Compare PU foam, crumb rubber and sponge rubber for comfort, stairs, heavy traffic and underfloor heating. Choose by the product specification, not material alone.

Fully carpeted staircase in a bright, neutral British home

Best Carpet Underlay for Stairs and Hallways

Carpet Underlay

Choose firm, resilient underlay for stairs, landings and busy hallways. Compare suitable rubber and PU products by use rating, support and fitting method.

8mm, 10mm and 12mm carpet underlay samples shown side by side

8mm vs 10mm vs 12mm Carpet Underlay: Which Thickness Is Best?

Carpet Underlay

Compare 8mm, 10mm and 12mm underlay for comfort, clearance and room suitability. Learn why density, material and tog matter alongside thickness.