Modular wall systems having thick and thin walls

A pre-fabricated wall system that joins walls of different thicknesses, comprising:

• a thin wall module having a depth defined by a distance from a front face thereof to a back face thereof;
• a thick wall module having a depth that is greater than the depth of the thin wall module;
• and
• a vertical connection post comprising:
• a first connection interface on a first side configured to secure to the thin wall module;
• and
• a second connection interface on a second side configured to secure to the thick wall module;
• wherein:
• the thin wall module and the thick wall module are arranged non-parallel to one another when both the thin wall module and the thick wall module are secured to the vertical connection post;
• and
• the vertical connection post comprises a corner protrusion that receives a seal for sealing a gap formed between the thin wall module and the thick wall module when both the thin wall module and the thick wall module are secured to the vertical connection post.

A pre-fabricated wall system, comprising:

• a plurality of wall modules, wherein:
• a thickness of each of the wall modules is defined by a distance between a front face of each wall module and a back face of each wall module;
• and
• at least two of the plurality of wall modules have different thicknesses;
• a vertical connection post comprising a plurality of connection interfaces configured for securing to each of the plurality of wall modules, including the at least two of the plurality of wall modules that have different thicknesses;
• and
• channel inserts securing the vertical connection post to the wall modules;
• wherein:
• the vertical connection post and the wall modules each include a vertical channel, and
• the channel inserts reside within the vertical channels to secure the vertical connection post to the wall modules.