The ornamental design for an expansionstrip for tiled surfaces, as shown and described.
FIG. 1 is a perspective view from one end of the expansion strip for tiled
surfaces which is broken in the center to indicate indeterminate length,
and the pattern of the openings is repated throughout the width thereof;
and,
FIG. 2 is an enlarged view of the other end.
The configuration of the bottom left end of the expansion strip for tiled
surfaces in FIG. 1, is continuous throughout the width thereof.