Stiles/rails: hardwood or softwood(pine or fir) Panel: MDF + face veneer Face veneer: Sapele, ash,beech, maple, cherry, ... wood we often use for our doors include oak, alder, pine, sapele,okume andso on.More information about us please see ... species: sapele,oak,walnut,teak,mahogany,cherry,ebnoy,beech,maple,pine,etc.2)Door structure:Rails/Stiles: Finger joint hardwood or ...