There are many locations that may call for a security gate: parking lots, schools, businesses, etc. In fact, every fence requires a gate of some kind to enter through. The question you have to ask yourself is: What do I want this gate to accomplish? Will it serve strong security purposes or simply act as a mild deterrent? Or will it simply round out the look of my fence while creating a glamorous entryway to those entering your property?
You also have a variety of options to choose from when it comes to the opening mechanism. Would you like a swinging one or would you prefer one that slides? Do you want two small gates that open together (similar to double doors) or one large single one? These are the types of questions you must ask yourself before beginning the selection process, although most installers are well educated on these topics and can help you along.