Although I seasoned the wood in my aerated bundle, it still has a good amount of moisture and cure remaining. I learned a number of decks ago that when working with PT decking that is fairly fresh, install the boards as tight together as possible. When they cure and dry out, the gap will be perfect. I remember one of my rookie decks where I used the standard 10d - 16d nail spacing technique. By the end of the summer, the gap was too wide by 1 nail's width. - The Tiger claw clip does provide for a very small gap since the body of the clip is 1/16" thick. This, and some of the boards were not perfectly straight, thus inducing some gaps. I pushed these suckers as close together as I could. This is one of the very few blessings of working with PT wood; no time spent trying to create a perfect spacing.
