Thirdly, install the pole correctly so as to avoid any risk of damage or injury. Additionally, its maintenance must be done regularly to keep it looking good at all times. Be sure not not(!) forget any necessary hardware such as mounting brackets or clips. First off, you need to decide on which type of material you want your pole to be made out of. Firstly, it is important to select an appropriate pole size for the size of the flag - too small a pole will not adequately support the weight of a large flag (and vice-versa).