Furniture assembly system

A furniture assembly system including:

• a horizontal member extending along a horizontal member axis, including an axially forward surface, an axially rearward surface, an upper surface, a lower surface;
• a vertical member extending along a vertical member axis and arranged to cross said horizontal member as viewed in a plan view, including a front surface, a rear surface, a left surface, a right surface;
• a cross axis extending in an axial direction that is generally perpendicular to both said horizontal member axis and said vertical member axis;
• a binding element to bind said horizontal member to said vertical member along said cross axis;
• wherein:
• said horizontal member crosses said vertical member at a crossover interface wherein at least one of:
• (i) said forward surface axially abuts said rear surface and;
• (ii) said rearward surface abuts said front surface;
• said horizontal member is keyed to said vertical member at a keying interface adjacent said crossover interface to limit circumferential rotation therebetween about said cross axis.