Abstract: An adjustable truss structure for a display is provided and includes a vertical truss member, a vertical channel having a vertical slot therein, the vertical channel being attached to the vertical truss member, and a horizontal rail having a horizontal slot. An anchor is attached to the horizontal rail. The anchor has a member rotatable to a first position where the member is insertable into the vertical slot and rotatable to a second position to engage with a surface of the vertical channel, thereby enabling the horizontal rail to be selectively moved up and down the vertical channel and locked into a selected fixed position with respect to the vertical channel. A support member has a channel with a U-shaped cross-section, the channel being hooked into the horizontal slot of the horizontal rail and being horizontally slidable in the horizontal slot.