The next thing to consider is if you are using the door in combination with another door or by itself. The reason you need to consider this is so you will know if the door(s) will be used to create a barrier between an exterior and interior space. One example is if the iron security door will be used along with an additional solid door it will give you security and aesthetic value and not just protection or insulation from the elements. In some cases people choose to use the these as the only door between the exterior and interior space. If this is the case then the door will have to fit flush to the door frame and not simply create a framework of metal bars.
When choosing the best iron door you also need to take into considerate the aesthetics of the door. Today you can get doors that are not just plain metal bars but are designed with beautiful turns, symmetry, twists, and angles to the spacing, curvature, and placement of the iron bars. Some of these doors have curls, scrolls, and loops while others are austere and simple. Make sure that you choose the one that evokes a shape or has a pattern that goes well with the exterior look of the building, the interior space the doors are protecting or a combination of both.
The last consideration is the price, which will be affected by the details and size of the iron security door. Simply designed iron security doors of standard size can be as inexpensive as two hundred dollars. For those that have to be custom made because of an odd size or is highly crafted can cost several thousand dollars. Take all these points into consideration and comparison shop before choosing your iron security door.