i need help finding the proper strut to support 1/2'' and 3/4'' copper pipe. do i have to use an insulated strut clamp if i support he copper pipe to a galvanized strut? how do i secure a strut to the bottom of a wood joist? and can you send me a product link? any help would be appreciated.

I have 7 garbage cans in front of my house that need to be secured. I have an old wire fence behind the garbage cans that I can attach bungee cords to so that they don't keep falling down when they are empty. I am having trouble determining how long a bungee cord I need to buy since the sizes listed are not for when the cord is stretched and they are packaged so tightly at the store most of the time. Also, I'd like to know if there are bungee cords out there which can withstand rain and the sun. Mine fall apart within a few months. I don't want to get too fancy or spend alot on this project. I need to be able to get at the garbage cans quickly as well and the bungee cords are very quick and easy to work with....if only they didn't fall apart so easy. I have to bring the garbage to the landfill in my area since there is no pickup. Convenience is therefore important to me. Thanks