interior solid wood knotty pine door, panel door, stable structure, suitable moisture content, high quality. Solid wood door*Specification:1) Optional Wood: Oak, Hemlock, Pine, ... 2 pieces of solid wood laminatedPanel: solid wood B) if what you need is engineering composite wood door, structure is like ... like below D) if what you need is molded wood door, structure is like below E) the structure can be ...