Stackable chair

A chair comprising a fixed supporting structure having a pair of front legs and a pair of rear legs and carrying an oscillating seat moveable between a raised position and a lowered position and a backrest, the supporting structure comprising:

• a transverse element, with two lateral end faces and a top support surface,
• a first pair of fixing elements fixed to respective end faces of the transverse element, the first pair of fixing elements having respective rearward projection portions, the seat being articulated to said rearward projecting portions about a transverse articulation axis parallel to the transverse element and displaced rearward with respect to the transverse element in such a way that in the lowered position the seat rests against said top support surface,
• a first pair of bars fixed to the first pair of fixing elements, the first pair of bars having lower portions extending below the transverse element and forming the pair of front legs, and top portions extending above the transverse element and forming a backrest support,
• a second pair of fixing elements fixed to the first pair of bars, and
• a second pair of bars fixed to the second pair of fixing elements, and forming the pair of rear legs,
• wherein the bars forming the rear legs are staggered in a transverse direction with respect to the respective bars forming the front legs.