Physical properties of polymer foams depend on their macrostructure. In this paper, we study a range of polyuretane foams from the stereological point of view. Images of plane surfaces of studied samples were created by printing them on a sheet of paper and scanning these imprints. Consequent operations included reconstruction of pore section areas in the plane of printing and computation of pore volumes. The distribution of pore section was compared with data from computer tomography (CT) in order compare both methods.