CHA pole barns (out of PA) used white pine board/batten siding on my barn, and it was really nice wood. Stable with a tight grain and well seasoned, so it cut and nailed very nicely (don't recall a single piece splitting on us). For doors I just did a lap joint, and the joints have stayed nice and tight. I'd say it's some of the nicest softwood I have worked with in a long time. I don't know the source, but Carter lumber (also in PA) delivered the siding, so they would know. I may still have one of the tarps that covered the stack and will check to see if it has more info. The boards are about 9-1/4" wide, about 3/4" thick, and have one side with a milled "rough" finish. It takes stain very well. I am about halfway done staining it with Sherwin-Williams Woodscapes stain, in red. <img src="http://www.tractorbynet.com/forums/files/projects/386970-cedar-siding-question-new-barn-img_4618-jpg"/>