Modular system of equipped wall with intrinsic anti-overturning function comprising two bearing structures, a metal frame with adjustable height (1,2,3) and a second structure, which structures are mutually connected but free to move independently if dynamically stressed thanks to a floating connection, the metal frame with adjustable height comprising: (i) four vertical uprights, each composed of: - two equal parts, that make up the ends of the upright, each obtained by welding one end of a tubular profile of rectangular section with a rectangular plate which acts as the foot of the upright and welding with two tubular elements with a circular section joined both to the profile and to the plate, - a part consisting of rectangular section tubular profile which fits inside the rectangular section tubular profiles of the said end parts of the upright, allowing the telescopic connection and guaranteeing the height adjustment of the upright, - each rectangular plate being joined to a a movable plate, joined on one side to said rectangular plate of the upright with height adjustable screw connection, bearing on the opposite side a coating in glued elastomeric material which interfaces with the floor or with the ceiling respectively and which has at least one housing for fixings which can be integrated with mechanical anchors, (ii) two horizontal crossbeams in rectangular section tubular profile connected to the uprights with removable fixing, (iii) at least one protection shelter connected to a pair of said uprights with removable fixing, and said second bearing structure comprising a plurality of vertical load-bearing elements in the installed condition leaning on the floor, made of various materials and various shapes, that are connected to the said first structure and contain anchors of the furnishing accessories, such as shelves, drawers, sliding doors etc. (i) four vertical uprights, each composed of: - two equal parts, that make up the ends of the upright, each obtained by welding one end of a tubular profile of rectangular section with a rectangular plate which acts as the foot of the upright and welding with two tubular elements with a circular section joined both to the profile and to the plate, - a part consisting of rectangular section tubular profile which fits inside the rectangular section tubular profiles of the said end parts of the upright, allowing the telescopic connection and guaranteeing the height adjustment of the upright, - each rectangular plate being joined to a a movable plate, joined on one side to said rectangular plate of the upright with height adjustable screw connection, bearing on the opposite side a coating in glued elastomeric material which interfaces with the floor or with the ceiling respectively and which has at least one housing for fixings which can be integrated with mechanical anchors, - two equal parts, that make up the ends of the upright, each obtained by welding one end of a tubular profile of rectangular section with a rectangular plate which acts as the foot of the upright and welding with two tubular elements with a circular section joined both to the profile and to the plate, - a part consisting of rectangular section tubular profile which fits inside the rectangular section tubular profiles of the said end parts of the upright, allowing the telescopic connection and guaranteeing the height adjustment of the upright, - each rectangular plate being joined to a a movable plate, joined on one side to said rectangular plate of the upright with height adjustable screw connection, bearing on the opposite side a coating in glued elastomeric material which interfaces with the floor or with the ceiling respectively and which has at least one housing for fixings which can be integrated with mechanical anchors, (ii) two horizontal crossbeams in rectangular section tubular profile connected to the uprights with removable fixing, (iii) at least one protection shelter connected to a pair of said uprights with removable fixing, and said second bearing structure comprising a plurality of vertical load-bearing elements in the installed condition leaning on the floor, made of various materials and various shapes, that are connected to the said first structure and contain anchors of the furnishing accessories, such as shelves, drawers, sliding doors etc.