L-shaped stair unit

FIG. 1 is a top, front, right perspective view of an L-shaped stair unit in accordance with our design;

FIG. 2 is a top, right, rear perspective view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a front elevational view thereof;

FIG. 7 is a bottom view thereof;

FIG. 8 is a top plan view thereof; and,

FIG. 9 is a top, front, left perspective view thereof showing an alternative arrangement of the L-shaped stair unit of FIGS. 1-8 .

The structural elements depicted by broken lines have been shown for the purpose of illustrating portions of the L-shaped stair unit that form no part of the claimed design.