Is the door frame, not the door sets. The The What are the materials used in the door frame?
A friend is a density board, is not all with this material ah
Not easy to deformation of the wood, the best is the fir, pine, cypress, to do the kind of very thoroughly,
Door frame borders are mainly two kinds of wood, one pine, the second is the fir, the market with more fir, pine some expensive, pine nail force is better than fir.
Useful MDF to do, grip nail force is poor, there is a multi-layer board, relatively less environmentally friendly, it is best to use solid wood to do the substrate and then a layer of 5 mm density, can never be deformed, never crack The quality requirements, the use of longer life.
