Drop-In Floor Boxes for structural wood floors are perfect for quick and easy installation of power or low voltage. Simply cut a hole between the floor and joists and drop through. The flange lip holds it in place. Drop-in floor box mounts in 2.50 inch hole opening, includes solid brass cover and single 125V tamper-resistant receptacle. Optional device mounts for two voice/data video ports, is suitable for feed through circuitry with an impact resistant box.