Trailer step assembly

A method of moving a retractable trailer stair assembly between a stowed position and a deployed position, the method comprising the steps of:

• providing a trailer with a trailer frame and a subfloor, wherein the trailer frame includes a frame platform with an interior top side not exposed to weather elements and an opposing exterior bottom side exposed to weather elements and at least one structural beam coupled with the frame platform, wherein the at least one structural beam extends upwardly from the interior top side of the frame platform and longitudinally along at least one side of the frame platform between a front and a rear of the frame platform, wherein the subfloor is spaced apart from the interior top side of the frame platform, and wherein an interior cavity is defined between the subfloor, the frame platform, and the at least one structural beam;
• providing a retractable stair assembly in a stowed position in which the retractable stair assembly is disposed at least partially within the interior cavity of a trailer frame between the subfloor and the interior top side of the frame platform not exposed to weather elements;
• moving the retractable stair assembly from the stowed position to a deployed position extending out of the trailer frame, wherein the retractable stair assembly includes a platform and a plurality of steps configured to define a set of steps out of a trailer to an egress surface in the deployed position;
• and
• wherein the platform is linearly movable between the stowed position and the deployed position.