I need a whole heck of a lot of it..
The floor itself is at least a 6x6.. being a club cab and all.. I want to do the firewalls the kick panels the inside of the doors up the back wall to the bottom of the back window and up the sidewalls in the club cab area up to the side windows... And maybe even some stuff up on the ceiling underneath the headliner glue on padding thing...
The only reason for the headliner "padding" is for insulation purposes. No way would I use that crap again on one. It rots, attracts moisture and mold. The KillMat is perfect insulation. I didn't use anything else under my headliner.