A splice plate for a cable tray facilitates proper longitudinal spacing between first and second cable tray sections. The splice plate may include spacing indicia that indicates to a user longitudinal spacing between the longitudinal ends of the first and second cable tray sections when the splice plate is fastened to the first and second cable tray sections. The splice plate may include a window that allows at least one of the longitudinal ends of the respective first and second cable tray sections to be visible when the splice plate is fastened to the first and second cable tray sections. The splice plate may include a machine readable marking including a machine readable representation of a web address that directs a hand-held device including a processor to a webpage including instructions for using the splice plate.