Airguard Premium Underlayment 300 Sq. Ft. 40 In. X 90 Ft. X 2 Mm with Microban f
Ft. 40 In. X 90 Ft. X 2 Mm with Microban for Laminate and Engineered Wood Floors. Area Coverage Per Roll (sq ft for each roll) 300. Product thickness (mil) 78.7. Roll Length (ft) 90 ft. Roll width (in) 40.