Cavity Floor Boxes are ideal as cable management boxes (or socket boxes) for wooden, carpeted or laminate floors which have a cavity. All boxes are manufactured from galvanised steel, include knockouts for conduit entry and have a durable frame and lid manufactured from ABS plastic. For high traffic situations, there is the option to upgrade to powder coated steel or stainless steel lids. One of the best features of these Tass Floor Boxes is the clamp fixing feature for fast installation.