Environ II Radiant Floor Heating for Carpet and Laminate Voltage: 240, Size: 60 sq. ft. Roll (6' x 10') Installs directly in between the pad and carpet or floating wood floor to heat the floor. Dimensions: 72"W x 120"L Circuit check installation aid available to ensure fault free installation Step-by-step installation guide, instructional DVD and warranty registration included UL Listed.