StarTech.com Cable Management Raceway with Cover 3"(75mm)W x 2"(50mm)H, 6.5ft(2m) length, 3/8"(8mm) Slots, Wall Wire Duct, UL Listed - Cable management raceway to organize network/power cords - Solid Single channel wire hider/concealer
Cable trunking size calculation according to BS 7671
Different Sizes Slotted Plastic Ducting Cable Trunk PVC Trunking Cable Duct - China Wiring Duct, Wiring Trunk | Made-in-China.com
80.40PLG - Type P - Slotted Wire Duct Raceway with Cover - 4 mm Slot Width - 6 mm Slot to Slot Center line - 2 Meters Length - 80 mm x 40 mm - Screw or Rivet Mounting - cURus - Etlin Daniels