I am going to frame my doors with 3/4 in spruce the same thickness as ther walls.. The walls are 1/2 ACX with 1 inch x 1 inch studs with a 1/8 birch inside skin. The jamb and hinge area of the door will be backed with 1" thick x 1 in wide studs. See pic.
Any suggestions such as wood type or if my design seems OK?
http://dl.dropbox.com/u/583093/doorframe%202.jpg