Partition wall (1; 301; 401; 501) comprising a wall element (2; 302; 402; 502) and a stand device, wherein the wall element (2; 302; 402; 502) comprises a multiplicity of tubular bodies (11, 12; 340, 360; 384, 385; 396; 498a - 498i), each having a cavity (20, 21; 320 - 324), that are vertically aligned in a room, wherein the wall element (2; 302; 402; 502) comprises spacer ribs (9, 10; 349; 383), wherein one of the spacer ribs (9, 10; 349; 383) is in each case disposed between neighbouring tubular bodies (11, 12; 340, 360; 384, 385; 396; 498a - 498i) of the wall element (2; 302; 402; 502) in such a manner that the tubular bodies (11, 12; 340, 360; 384, 385; 396; 498a - 498i) are aligned so as to be mutually parallel and mutually spaced apart, wherein the stand device comprises at least two floor supports (3 - 6; 103; 203; 303, 304), wherein each floor support (3 - 6; 103; 203; 303, 304) comprises a foot (14; 114; 214; 367; 368) and a holder, and wherein each holder is connected to the wall element (2; 302; 402; 502), wherein the holder of the floor support (3 -6; 103; 203; 303, 304) comprises a vertical stand (16 - 19; 118, 119; 216, 217; 316, 317; 497a -497i; 516, 517) wherein the vertical stand (16 - 19; 118, 119; 216, 217; 316, 317; 497a - 497i; 516, 517) is adapted to a cavity (20, 21; 320 - 324) of one of the tubular bodies (11, 12; 340, 360; 384, 385; 396; 498a - 498i) of the wall element (2; 302; 402; 502) in such a manner that the tubular body (11, 12; 340, 360; 384, 385; 396; 498a - 498i) acquires an alignment of the vertical stand (16 -19; 118, 119; 216, 217; 316, 317; 497a - 497i; 516, 517) when the vertical stand (16 - 19; 118, 119; 216, 217; 316, 317; 497a - 497i; 516, 517) is push-fitted into said tubular body (11, 12; 340, 360; 384, 385; 396; 498a - 498i), characterized in that at least one of the vertical stands (16 - 19; 118, 119; 216, 217; 316, 317; 497a - 497i; 516, 517) comprises at least one coupling means (344 - 346; 364 - 366), wherein the vertical stand (16 - 19; 118, 119; 216, 217; 316, 317; 497a - 497i; 516, 517) is plug-fitted into the cavity (20, 21; 320 -324) of one of the tubular bodies (11, 12; 340, 360; 384, 385; 396; 498a - 498i) of the wall element (2; 302; 402; 502), in that at least one of the coupling means (344 - 346; 364 - 366) of said vertical stand (16 - 19; 118, 119; 216, 217; 316, 317; 497a - 497i; 516, 517) is disposed in the region of the cavity (20, 21; 320 - 324) into which said vertical stand (16 - 19; 118, 119; 216, 217; 316, 317; 497a - 497i; 516, 517) is plug-fitted, and in that the tubular body (11, 12; 340, 360; 384, 385; 396; 498a - 498i) into which the vertical stand (16 - 19; 118, 119; 216, 217; 316, 317; 497a - 497i; 516, 517) is plug-fitted has at least one clearance (341 - 343; 361 - 363) which is aligned to one of the coupling means (344 - 346; 364 - 366), the coupling means (344 -346; 364 - 366) being accessible from the outside by way of said clearance (341 - 343; 361 - 363), wherein the partition wall (1; 301; 401; 501) comprises at least one add-on part (370 - 373), wherein each add-on part (370 - 373) comprises at least one flange (371b, 371c) and by way of the latter, so as to pass through one of the clearances (341 - 343; 361 - 363) of one of the tubular bodies (11, 12; 340, 360; 384, 385; 396; 498a - 498i) of the wall element (2; 302; 402; 502), is connected to one of the coupling means (344 - 346; 364 - 366) of one of the vertical stands (16 - 19; 118, 119; 216, 217; 316, 317; 497a - 497i; 516, 517).