A blade for a rotor of a wind turbine having a substantially horizontal rotor shaft, said rotor comprising a hub , from which the blade extends substantially in a radial direction when mounted to the hub , the blade having a longitudinal direction (r) with a tip end and a root end and a vertical direction, the blade further comprising: - a profiled contour including a pressure side and a suction side, as well as a leading edge and a trailing edge with a chord having a chord length (c) extending there between, the profiled contour, when being impacted by an incident airflow, generating a lift, - a pressure side shell part at least partly made of a sandwich structure including an inner skin , an outer skin , and an intermediate core material , - a suction side shell part at least partly made of a sandwich structure including an inner skin , an outer skin , and an intermediate core material , wherein the suction side shell part is bonded to the pressure side shell part at least along the respective leading edges of the shell parts, and wherein the material of the intermediate core includes one or more of balsa, wood and foamed polymer, - a longitudinally extending spacing section in which the respective trailing edges of the pressure side shell part and the suction side shell part are spaced apart, characterised in that - a trailing edge shear web is arranged between and connected to the sandwich structure of the suction side shell part at a position that includes the inner skin , the outer skin , and the intermediate core material of the sandwich structure of the suction side shell part and the sandwich structure of the pressure side shell part at a position that includes the inner skin , the outer skin , and the intermediate core material of the sandwich structure of the pressure side shell part. - a profiled contour including a pressure side and a suction side, as well as a leading edge and a trailing edge with a chord having a chord length (c) extending there between, the profiled contour, when being impacted by an incident airflow, generating a lift, - a pressure side shell part at least partly made of a sandwich structure including an inner skin , an outer skin , and an intermediate core material , - a suction side shell part at least partly made of a sandwich structure including an inner skin , an outer skin , and an intermediate core material , wherein the suction side shell part is bonded to the pressure side shell part at least along the respective leading edges of the shell parts, and wherein the material of the intermediate core includes one or more of balsa, wood and foamed polymer, - a longitudinally extending spacing section in which the respective trailing edges of the pressure side shell part and the suction side shell part are spaced apart, characterised in that - a trailing edge shear web is arranged between and connected to the sandwich structure of the suction side shell part at a position that includes the inner skin , the outer skin , and the intermediate core material of the sandwich structure of the suction side shell part and the sandwich structure of the pressure side shell part at a position that includes the inner skin , the outer skin , and the intermediate core material of the sandwich structure of the pressure side shell part. <EOS>