Well this weekends project was to install my Simpson duratech chimney that i have been waiting over 6 weeks to get. 2 items were on back order and they finally came in. i picked up everything and was set to go, hopefully I'll be burning by Monday, i thought. well today i opened all the boxes to find two of the 60" sections of class A had nice big dents in them. this pipe only has a 1" thick layer of insulation so i don't think i can use this stuff because the dents are pretty deep. i suspect they will be willing to exchange the damaged pipe but what really pisses me off is these pipes come with packing foam on top and bottom and the box was in perfect condition. which means the damage occured prior to packing and they shipped it anyway. at this rate it will be spring before i'm up and running.