Include fittings, elbows, tees, reducers, and covers at 25-40% of base material costs. Commercial wireway systems cost comparison shows that accessories often represent the largest hidden expense in wireway systems cost calculations. Below are the list for cable tray installation man hour which include cable tray, cable tray cover; cable tray fittings such as 90 degree horizontal elbow, 90 degree vertical elbow, horizontal tee, horizontal cross, and reducer. It also include man hours for installation of cable tray accessories. en completely installed, without damage either to conductors or structural system use maintain spacing or to keep cables in place when the tray is ect the minimum bend ra-dius for cables as they exit the bottom of the cable tray. A rung spacing of 6 to 9 inches (150 to 230 mm) is preferable when. Cable tray installation cost per meter varies by specifications; GangLong Fiberglass offers kits for raised floor system and facility needs. Ladder type cable trays are built for heavy-duty routing. Perforated cable. Basic cable tray systems cost $3-15 per foot depending on type and material Installation labor adds $5-8 per foot to total project costs Ladder trays typically cost 20-30% less than solid bottom systems Bulk orders of 1000+ feet can reduce unit pricing by 15-25% Regional variations can impact. Installation cost: The labor and resources required to install the system. Maintenance cost: The ongoing expenses associated with cleaning, repairs, and replacements.