Abstract: A frame member for use in constructing a framework, particularly but not exclusively for use in the construction of a suspended ceiling or partitioning framework having a side face which has a first projecting bearing portion and a first surface extending from the first bearing portion, the first surface having at least a portion which tapers inwardly, the frame member having an end face which has a second projecting bearing portion coplanar with and presented in a direction opposite to the first bearing portion and a second surface extending from the second bearing portion adjacent said first surface and having a portion of complementary taper to the tapered portion of the first surface.