When people have a climbing rose, they may be concerned about the type of the trellis that they should use. Some may not be sure to use wooden trellis or wire. However, the answer is just simple; you can use whatever you like as far as it matches esthetic of the garden or the house. When you use the wrought irons for a climbing rose bush trellis, it will be a blast because of the design possibilities. However, if you wish to use other types of metal, it is going to be alright but you have to ensure that they do not get too hot from the sun since they may burn canes of roses.