A wide variety of shapes and design a door, especially for the front door is very diverse. Of some existing designs, including wood and aluminum, in particular for the door frame. Of course each frame has its advantages and disadvantages.
The concept of the aluminum frames used for the front door would have an intention, particularly in terms of design you want highlighted. In accordance with a simple shape, the use of aluminum frames is more emphasis on the look elegant, modern, durable, and easy to set up.
However, if viewed from the level of engagement between frames originating from the wood frame made of aluminum, wooden material certainly has its own advantages, particularly in terms of forms that can be customized as you wish.