The ornamental design for a flooringmember, as shown and described.
FIG. 1 is a front view of a flooring member, with a rear view being a mirror image of the front view;
FIG. 2 is a right side view thereof, with a left side view being a mirror image of the right side view;
FIG. 3 is a top plan view thereof;
FIG. 4 is a bottom plan view thereof; and,
FIG. 5 is a perspective view thereof.
The broken lines in FIGS. 1 and 2 are included for the purpose of illustrating portions of the flooring member that form no part of the claimed design.