Abstract: A wall module comprises face panels and stud members connected to and spacing the face panels from one another. End panels are connected to ends of the assembly of the face panels and of the stud members to form a box body with the face panels and the stud members, the box body having an inner cavity. Cross member(s) extend between stud members and/or between the face panels. The body box has an elongated upstanding shape when the assembly of the face panels and of the stud members is vertical, such that the face panels form a wall when a plurality of the wall module are positioned side by side with the stud members of adjacent ones of the wall modules being coplanar. A wall comprises a plurality of the wall modules.