Abstract: A latticed packing member for gas-liquid contacting system having an odd number of plural longitudinal strips and an even number of plural lateral strips, the latter number being one less the number of the longitudinal strips. These strips are crossed at right angles on their sides, and the bottom thereof is chamfered. At least one projected area is provided on the strips, on which a notch for engagement is formed. At the center of lattice sections other than sections provided with the projected areas, there is provided a reinforcement with a flat bottom. The longitudinal strip located at the center of the member coincides with the axial center line X of the lateral strip in the direction A of its length, and the axial center line Y of the longitudinal strip in the direction B of its length is formed by the lateral strip which passes the center of the lateral lattice section located at the center. The axial center lines X and Y intersect with each other at the center.