Wall system using gypsum studs having mep accommodation

A method of assembling an interior wall system, comprising:

• assembling a frame having at least one lower support member, at least one upper support member, and at least two vertical support members securing said lower and upper support members together, said frame having a first side and a second side;
• securing at least one first panel to said first side of said frame by attachment to at least said upper and lower support members, each said first panel having an interior surface facing said frame;
• securing at least one shortened gypsum stud having a length shorter than said vertical support members to said interior surface of said at least one first panel to create upper and lower passages between respective ends of said at least one stud and the respective upper and lower support members;
• installing at least one MEP structure in at least one of said upper and lower passages;
• and
• securing at least one second panel to said second side of said frame by attachment to said upper and lower support members, and to said shortened gypsum studs.