In 2005, the 737 Wing Center was set up in the 4-81 bay at Boeing's Renton facility that used to house 757 final assembly. The floor under the wing dollies was painted with a white epoxy, which reflects light and brightens the work area. A new overhead utility rack with swing arms was set up to feed power and hydraulic cords into each wing position. A utility rack eliminated cords on the floor, which were trip hazards. Completed 737 wings now make shorter trips to the Wing-to-Body Join positions in both the 4-81 and 4-82 bays.