... MDF board on both sides 2)PVC film veneer surface 3)Very easy to install PVC Interior doors, free paint doors ... ) Material: Solid fir skeleton inside, MDF boards outside, veneered with PVC, 3) Thickness of door leaf: 40mm4) Opening direction: Inward / ... door frame with the door leaf perfectly, convenient to install 11) Moth proofing, moisture proofing, heat resistance, break resistance firmness ...