Was, the sheets are sold in per sq/ft. Typical prices are 900rs/sqft. You dont need to cover the complete panel with sheet, the purpose is to add weight to reduce vibrations. Also sound absorbing cotton felt /foam comes in play. all depends on the level of sound deadening you require. A starting level job can cost u 5000rs. Depends on how efficiently sheets are utilized, most of the installers simply waste the sheets. Can provide you required services, you can visit my garage ignition autos
