... different temperature wood:alder,okume,oak,sapele... internal pine door*Specification:1)Optional Wood: Oak,Sapeli,Hemlock, ... solid woodB) if what you need is solid veneer door, structure will be like belowStile&rail: finger-joint ... )Opening direction: inward or outward 9)Usuage: internal and external10)Environmental friendly lacquer 11)factory view ... QC guarantees our quality. 2 panel internal pine door