Modular wall system having thin walls

A pre-fabricated wall system configured for a thin wall module configuration, comprising:

• two thin wall modules, including a first thin wall module and a second thin wall module, the two thin wall modules having a depth defined by a distance from a front surface of each thin wall module to a back surface of each thin wall module, wherein the first wall module includes a first vertical end frame that includes a first channel, the first channel comprising, a first channel protrusion, and wherein the second wall module includes a second vertical end frame that includes a second channel, the second channel comprising a second channel protrusion;
• a vertical connection post comprising:
• a first connection interface on a first side configured to secure to the first thin wall module, the first connection interface including a corresponding first channel that includes a corresponding first channel protrusion;
• and
• a second connection interface on a second side opposite the first side configured to secure to the second thin wall module, the second connection interface including a corresponding second channel that includes a corresponding second channel protrusion, wherein the first channel protrusion of the first channel of the first vertical end frame of the first wall module is configured to align with the corresponding first channel protrusion of the corresponding first channel of the first connection interface, and wherein the second channel protrusion of the second channel of the second vertical end frame of the second module is configured to align with the corresponding second channel protrusion of the corresponding second channel of the second connection interface;
• and
• first and second connectors, wherein:
• the first connector is configured to fit over at least a portion of the first channel protrusion and the corresponding first channel protrusion to secure the first thin wall module to the vertical connection post;
• and
• the second connector is configured to fit over at least a portion of the second channel protrusion and the corresponding second channel protrusion to secure the second thin wall module to the vertical connection post;
• wherein the two thin wall modules are parallel or co-planar to one another when the two thin wall modules are secured to the vertical connection post.