The price is for 1 sheet 

One Tile Covers 8.1 Sq.Ft. 

38"-5/8" x 30"-3/8" 1/4 Thick

DrexMat Heat Membrane is a polypropylene uncoupling crack isolation waterproofing membrane with rounded shaped reliefs. These evenly spaced reliefs membrane is designed to embed and hold an Electric Radiant Heat Cable such as Drexma CSA certified 3,7W cable.

APPROVED, the DrexMat membrane has passed the Robinson C627 Qualification Test, which confirms its usability in residential and commercial heating systems. It has also met the requirements of the anti-fracture standard based on Tile Council of North America (TCNA) testing (ASTM 118.12).