#5492, "RE: How much sound deadner......" In response to In response to 0
i have roughly 100-120 square feet in my car, but i didnt do anything to the trunk. that was more than enough, so i doubled up in a few places. i would think the same amount would do the floor/doors/trunk with no problem using one layer. if you have any left over, i would definalty give the firewall/tire wells a double coat, it was amazing how much road noise i managed to reduce when i did those areas.