Lay-in Flat-Cover Type 1 Straight Sections are used for enclosing wire and cable in wireway runs. Sections are completely open on one side so wires and cables can be laid in along wireway run. No pulling through of wires or cables prevents damage to insulation that often occurs in a pull-through wiring system. Flat cover design allows for mounting flush with walls or ceilings. Keyhole screw slots on flat covers provide easy access. Sections are available in lengths from 12 inch to 120 inch, with or without knockouts.