Subfloor system and methods of construction thereof

A split subfloor system comprising:

• a plurality of footings;
• at least two split pre-notched beams that rest on the plurality of footings;
• at least two split pre-notched joists that rest perpendicularly on the pre-notched beams;
• at least two split frame units that rest perpendicularly on the pre-notched beams in a direction parallel to the pre-notched joists;
• wherein the split pre-notched joists and the split frame units are secured to the pre-notched beams by fastening means;
• and
• at least one split rim joist secured to each end of the pre-notched joists and the split frame units, wherein the split pre-notched joist has a male bracket affixed at each end or wherein each end of the split pre-notched joist has one or more dowel pin receiving cavities, wherein the male bracket or the dowel pin receiving cavities on the split pre-notched joist receives the at least one split rim joist.

A method of constructing a subfloor system comprising:

• a) placing at least two pairs of footings on the ground to form a square;
• b) placing one pre-notched beam on each pair of footing such that the pre-notched beams are parallel to each other;
• c) placing one or more pre-notched joists on the pre-notched beams in a direction perpendicular to the pre-notched beams;
• d) placing at least one frame unit perpendicularly on each end of the pre-notched beams, wherein the frame unit run parallel to the one or more pre-notched joists;
• e) securing the ends of the pre-notched joists and the frame units with a rim joist by means of a male bracket and a corresponding female bracket or one or more dowel pin receiving cavities and corresponding one or more dowel pins;
• and
• f) affixing the pre-notched beams, the pre-notched joists, the frame units and the rim joists by affixing means.