The invention relates to a web (1) with a web base (3) and a tube segment (4) of a wood-based material or of bamboo, wherein the tube segment (4) has a wall (5) which is delimited in the circumferential direction by two cut ends (8, 9), and wherein the tube segment (4) is mechanically connected to the web base (3) by means of at least one of the cut ends (8, 9). The invention further relates to asandwich plate (2) with a plate layer (11) and a core layer (13), wherein the core layer (13) has at least one web (1) according to the invention which is mechanically connected to the adjoining connecting face (14) of the plate layer (11) by means of a cut face (6, 7) of a tube segment (4), wherein the cut faces (6, 7) delimit the wall (5) of the tube segment (4) in the direction of longitudinalextent. The invention further relates to a sandwich block (26) and methods for producing a sandwich plate, a web (1) and a sandwich block (26).