Ok, here are a couple of pics of my trunk area that I dampened with Dynamat........I also did the back panel which I never got a pic of. I basically covered the entire trunk area. I also covered any holes I saw. I used 5 sheets of 18x36 inch material. It is roughly 2.44lbs per sheet for a total of 12.2lbs. Not too bad. It does look fairly easy to install (and it is!), it just took some TIME!! So be aware that this isn't a 30min job. My car is apart right now, but as soon as I get it back together I will give an update and my opinions on this product........