The invention concerns a device for metering of a coating agent onto a moving base, such as a paper or board web (W). The device (10) comprises a coating nip (N₁) formed by soft-faced applicator rolls (11,21), through which nip the web (W) is passed, the first applicator roll (11) from among said applicator rolls being journalled as fixed on the frame (1) of the device, and the second applicator roll (21) being linked to the frame (1) of the device pivotally by the intermediate of a loading arm (24) or equivalent. At least one of said applicator rolls (11,21) is in nip contact with a hard transfer roll (41,61), which is further in nip contact with a soft-faced metering roll (31,51). In a metering nip (N₂,N₄) between the metering roll and the transfer roll, a pond (P₁,P₂) has been formed out of the coating agent, out of which pond, as the rolls revolve, the coating agent is fitted to be transferred through the metering nip (N₂,N₄) onto the face of the transfer roll (41, 61) and from there further, through the transfer nip (N₃,N₅) formed by the transfer roll (41,61) and the applicator roll (11,21), onto the face of the applicator roll (11,21). From the applicator roll the coating agent is fitted to be transferred onto the web (W) in the coating nip (N₁). In the solution in accordance with the invention, the metering roll (31) and the transfer roll (41) placed next to the fixed applicator roll (11) and/or the metering roll (51) and the transfer roll (61) placed next to the mobile applicator roll (21) are linked pivotally to the same machine member on the frame (1) of the device.