I know it is recent practice to butt 5/4 x6 PT decking as close as you can and then as it dries it creates a small space. My question, is that I got the lumber from Menards. It looks fine, but I know they sometimes let there lumber sit around. How can I be sure that my lumber is wet? I want to start laying the decking today, but I am concerned that if I put a space between the boards it will look awful in the future. But, if the boards are already dry, then I will never get a gap. Any thoughts?