Laminated lumber constructed volumetric modular unit for modular building construction

A modular building constructed from laminated lumber constructed volumetric modular unit, the modular building comprising:

• a foundation with opposing foundation walls forming an open space extending entirely between the opposing foundation walls;
• a plurality of volumetric modular units assembled together on top of the foundation to provide the modular building having one or more floors with one or more rooms;
• at least one of the plurality of volumetric modular units having:
• a floor structure and ceiling structure interconnected by opposing side wall structures and opposing end wall structures;
• a plurality of floor trusses disposed within the floor structure;
• a plurality of ceiling trusses disposed within the ceiling structure;
• a plurality of wall studs disposed within the opposing side wall structures and opposing end wall structures;
• one or more rim joists attached to the ceiling structure;
• and
• one or more multiple laminated lumbers attached to the floor structure and extending between the opposing end wall structures for carrying the load of the modular unit;
• a first supported end of the one or more multiple laminated lumbers supported atop a first one of the opposing foundation walls and a second supported end of the one or more multiple laminated lumbers supported atop a second one of the opposing foundation walls;
• and
• an unsupported portion of the one or more multiple laminated lumbers extending between the first and second supported ends above the open space.

A method for constructing a volumetric modular unit with laminated lumber at a modular unit factory for shipping assembled to a modular building project site and building a modular constructed building, the method comprising:

• fabricating a floor structure from a plurality of floor trusses;
• fabricating a ceiling structure from a plurality of ceiling trusses;
• fabricating opposing side wall structures and opposing end wall structures from a plurality of wall studs;
• attaching one or more rim joists to the ceiling structure atop of the plurality of wall studs;
• and
• attaching one or more multiple laminated lumbers to the floor structure between the opposing end wall structures for carrying the load of the volumetric modular unit.