A joint assembly (1; 101) for connecting a first furniture part (3; 103) and a second furniture part (5; 106) to each other, whereby said joint assembly (1; 101) comprises a first undercut groove portion (7b; 109b) formed in said first furniture part (3; 103), a second undercut groove portion (9b; 109c) formed in said first furniture part (3; 103), a first connector (15; 119) comprising a base portion (15a; 119a) and a protruding portion (15b; 119b), said base portion (15a; 119a) being insertable, in a first insertion direction (11; 15), into an engaged position in one of said undercut groove portions (7b, 9b; 109b; 109c), a second connector (17; 121) comprising a base portion (17a; 121a) and a protruding portion (17b; 121b), said base portion (17a; 112a) being insertable, in a second insertion direction (12; 16), into an engaged position in one of said undercut groove portions (7b, 9b; 109b, 109c), wherein said first and said second insertion directions (11, 12; 15, 16) are different from each other, a first connector receiving portion (23, 39; 127, 143) formed in said second furniture part (5; 106) and configured to receive one of said connectors (15, 17; 119, 121), a second connector receiving portion (25, 41; 129, 145) formed in said second furniture part (5; 106) and configured to receive one of said connectors (15, 17; 119, 121) said connector receiving portions (23, 39, 25, 41; 127, 143, 129, 145) being situated so as to receive the first and the second connectors (15, 17; 119, 121) when they are situated in their respective engaged positions and to maintain them in their respective engaged positions, characterised in that at least one of said base portions (15a, 17a; 119a, 121a) has a non-circular shape. whereby said joint assembly (1; 101) comprises a first undercut groove portion (7b; 109b) formed in said first furniture part (3; 103), a second undercut groove portion (9b; 109c) formed in said first furniture part (3; 103), a first connector (15; 119) comprising a base portion (15a; 119a) and a protruding portion (15b; 119b), said base portion (15a; 119a) being insertable, in a first insertion direction (11; 15), into an engaged position in one of said undercut groove portions (7b, 9b; 109b; 109c), a second connector (17; 121) comprising a base portion (17a; 121a) and a protruding portion (17b; 121b), said base portion (17a; 112a) being insertable, in a second insertion direction (12; 16), into an engaged position in one of said undercut groove portions (7b, 9b; 109b, 109c), wherein said first and said second insertion directions (11, 12; 15, 16) are different from each other, a first connector receiving portion (23, 39; 127, 143) formed in said second furniture part (5; 106) and configured to receive one of said connectors (15, 17; 119, 121), a second connector receiving portion (25, 41; 129, 145) formed in said second furniture part (5; 106) and configured to receive one of said connectors (15, 17; 119, 121) said connector receiving portions (23, 39, 25, 41; 127, 143, 129, 145) being situated so as to receive the first and the second connectors (15, 17; 119, 121) when they are situated in their respective engaged positions and to maintain them in their respective engaged positions, characterised in that at least one of said base portions (15a, 17a; 119a, 121a) has a non-circular shape.