Abstract: The in-floor, flush poke-through wiring fitting may be installed in the floor of a structure to enable the activation of power, communication, and/or data services at the fitting location. The poke-through fitting includes an interference shielding barrier to prevent E.M. and R.F. interference with the signal services. The poke-through fitting also includes pre-shaped fire-retarding materials, which are encapsulated to prevent degradation and damage. The poke-through fitting accommodates RJ-45 Category 5 signal jacks such that the faces of the jacks (that is, the faces that may receive selectively, RJ-45 Category 5 connectors) are mounted substantially flush with an upper outwardly facing surface of the fitting.