Solid floor board assembly with duct raceway cavity

A solid floor board assembly with duct raceway cavity comprising:

• a plurality of base blocks each including four stubs erected at its four corners, and which being fabricated in one piece with said base block, and a recess being formed at the surface of each said stub;
• a plurality of layer plates each being entrained on said base block among said four stubs to form into a cross bar configuration and split into a desired layout direction along several frangible crease prepared on said layer plate;
• and
• a plurality of floor board each provided with a plurality of posts to be inserted into the corresponding recesses formed on said stubs of said base block in the form of tenon and mortise joint;
• wherein a hollow cavity formed between said base blocks and said layer plates are partitioned to accommodate a variety of wire ducts and conduits for respective usage neatly and orderly, and the surface thereof is covered with said floor boards so as to further improve the outer look of the whole structure, the solidarity of structure ensures a high compressive strength, and the number of unit floor board for assembly, the size and the configuration thereof is left to the decision of the building owner.