There is no additional charge for most of the hanging hardware I use to hang your art and other items. But some pieces require special materials such as cleats, anti-theft, or child-resistant hardware, or when “overkill” is used, such as for heavy pieces to be hung over beds. For those there may be a reasonable additional charge. Also, if the frame or some other component of the piece requires repair in order to safely hang it, there may an additional charge for those materials.