Patent ID: 8104744

Claim:
A panel, comprising: a plurality of first members, each said first member being elongated, including opposite first and second ends, and having an aperture formed through the first end; a second member being elongated, said second member including an outer wall which extends continuously to define a unitary closed perimeter that delimits a hollow interior space; and an elongated locking member; wherein the second member further includes openings formed through the outer wall at a first side of the outer wall, the openings being configured to receive the first ends of the corresponding first members; wherein the second member further includes a plurality of peripheral passage structures, each peripheral passage structure being disposed in the hollow interior space at the first side of the outer wall and extending between adjacent openings, the peripheral passage structures being aligned along a length of the elongated second member so as to delimit an elongated channel interrupted by the openings; wherein the first ends of said first members are configured to be inserted into the openings and wherein the apertures are configured to align with the channel to form a continuous passageway through the first and second members; and wherein the locking member is configured to be inserted into the passageway, extending through the plurality of first members, and engaging the passageway in an interference fit to lock the first and second members together.