Read more 12″ Coil Box Call for Price 12″ Coil Box Unsightly cable coils making your shop look messy? Loose cables causing a safety hazard? Need to protect your cables from nearby equipment? Cable Management's Coil Boxes can easily and safely hide your cable coils away. 12″ x 12″ x 4″ Floor, wall, and ceiling mountable. Multiple openings to feed and direct cables. Made from galvanized steel Also available at 6″ and 8″ depths for an additional cost.