TL;DR: Basic wireway systems cost $8-15 per linear foot, while heavy-duty cable tray installations range from $12-25 per foot including materials and basic installation. This guide breaks down everything buyers need to know, from price trends to cost-saving tips. Cable trays are vital in electrical installations, providing secure pathways for power, communication, and control cables across residential, commercial, and. Each cable tray type carries its own cost behaviour. Ladder type cable trays are built for heavy-duty routing. In power-heavy areas, they prevent failures that would be far more expensive than the tray itself. 2 Can I Mix Different Brands? 8.