Length adjustable railing panel with removable upright end rails

A length adapter system for a railing panel, comprising:

• a first length adapter and a second length adapter, each comprising:
• an upright end rail defining a plurality of apertures;
• an upper insertable portion extending longitudinally from an end of a top rail extender and parallel to the top rail extender, the top rail extender disposed at a first end of the upright end rail;
• a lower insertable portion extending longitudinally from an end of a bottom rail extender and parallel to the bottom rail extender, the bottom rail extender disposed at a second end of the upright end rail opposite the first end;
• and
• a plurality of inserts welded to the upright end rail, each insert disposed proximate a respective aperture of the plurality of apertures, each insert configured to be received by a slat, the slat being a hollow rigid body with at least one open end and extending from the first length adapter to the second length adapter;
• wherein for each of the first and second length adapters each of the plurality of apertures is sized and shaped to receive a slat and each insert is biased to exert a force on an internal surface of the slat, wherein each biased insert is welded to an internal surface of the upright end rail.

A railing panel, comprising:

• a top rail comprising a hollow tubular structure and extending longitudinally in a first direction from a first open end to a second open end disposed opposite the first open end;
• a bottom rail comprising a hollow tubular structure and extending longitudinally in a second direction from a first open end to a second open end opposite the first open end of the bottom rail, the bottom rail disposed spaced apart from the top rail;
• a plurality of slats disposed between and running from a first length adapter to a second length adapter and running parallel to the top rail and the bottom rail, each of the plurality of slats being a hollow rigid body;
• and
• each of the first length adapter and the second length adapter, comprising:
• an upright end rail defining a plurality of apertures,
• a top rail adapter disposed at a first end of the upright end rail, an upper insertable portion of the top rail adapter extending in the first direction and being received by the first open end of the top rail,
• a bottom rail adapter disposed at a second end of the upright end rail opposite the first end, a lower insertable portion of the bottom rail adapter extending in the second direction and being received by the first open end of the bottom rail, wherein each of the plurality of apertures receives an end of each of the plurality of slats, and
• a plurality of inserts coupled to the upright end rail, each insert disposed proximate a respective aperture of the plurality of apertures, each insert received by a respective slat, wherein each insert is biased to exert a force on an internal surface of the respective slat;
• wherein the upper insertable portion is received by the first open end of the top rail and further comprises at least one fastener received through the top rail and the upper insertable portion.