Conifers are of major importance as the source of softwood, and also supply resins and turpentine. See softwoods . Stile - The vertical frame member of a shutter panel. All panels have top and bottom rails. Occasionally, a middle rail will be specified for certain applications and is always recommended on panels over a certain height.
Bead is also a term applied to wood moldings when adding detail.
Tilt rod - Connects the louvers to operate together. Fluting in dowels allow for glue to do the best job possible in holding parts together, increasing strength and rigidity.