A collapsible step assembly for helping a user entering a cabin of an industrial vehicle, the collapsible step assembly comprising: - a collapsible step member configured to be movable between: -- a stowed position in which the collapsible step member is set-back from or flush with an external surface of the industrial vehicle, and -- a deployed position in which the collapsible step member projects out of the external surface of the industrial vehicle, - an actuation member configured to link the collapsible step member and an entry door of the cabin, in which the collapsible step member is configured to be moved along a translation axis from the stowed position to the deployed position by the actuation member in response to an opening of the entry door, in which the collapsible step member comprises: - a fixed step member comprising a fixed base plate and at least a first translation shaft extending from the fixed base plate in a direction parallel to the translation axis, - a mobile step member comprising a mobile base plate and at least a second translation shaft extending from the mobile base plate in a direction parallel to the translation axis, the collapsible step assembly further comprising at least a load bearing element arranged between the fixed base plate and the mobile base plate in a direction parallel to the translation axis, the load bearing element being mechanically linked to the mobile step member, in which the load bearing element comprises: a first reception hole configured to receive the first translation shaft, a second reception hole configured to receive the second translation shaft, and in which the load bearing element is configured to transmit to the fixed step member via the first translation shaft a mechanical load applied to the mobile step member alonga direction perpendicular to the translation axis. the collapsible step assembly comprising: - a collapsible step member configured to be movable between: -- a stowed position in which the collapsible step member is set-back from or flush with an external surface of the industrial vehicle, and -- a deployed position in which the collapsible step member projects out of the external surface of the industrial vehicle, - an actuation member configured to link the collapsible step member and an entry door of the cabin, - a collapsible step member configured to be movable between: -- a stowed position in which the collapsible step member is set-back from or flush with an external surface of the industrial vehicle, and -- a deployed position in which the collapsible step member projects out of the external surface of the industrial vehicle, -- a stowed position in which the collapsible step member is set-back from or flush with an external surface of the industrial vehicle, and -- a deployed position in which the collapsible step member projects out of the external surface of the industrial vehicle, - an actuation member configured to link the collapsible step member and an entry door of the cabin, in which the collapsible step member is configured to be moved along a translation axis from the stowed position to the deployed position by the actuation member in response to an opening of the entry door, in which the collapsible step member comprises: - a fixed step member comprising a fixed base plate and at least a first translation shaft extending from the fixed base plate in a direction parallel to the translation axis, - a mobile step member comprising a mobile base plate and at least a second translation shaft extending from the mobile base plate in a direction parallel to the translation axis, the collapsible step assembly further comprising at least a load bearing element arranged between the fixed base plate and the mobile base plate in a direction parallel to the translation axis, the load bearing element being mechanically linked to the mobile step member, - a fixed step member comprising a fixed base plate and at least a first translation shaft extending from the fixed base plate in a direction parallel to the translation axis, - a mobile step member comprising a mobile base plate and at least a second translation shaft extending from the mobile base plate in a direction parallel to the translation axis, the collapsible step assembly further comprising at least a load bearing element arranged between the fixed base plate and the mobile base plate in a direction parallel to the translation axis, the load bearing element being mechanically linked to the mobile step member, in which the load bearing element comprises: a first reception hole configured to receive the first translation shaft, a second reception hole configured to receive the second translation shaft, and in which the load bearing element is configured to transmit to the fixed step member via the first translation shaft a mechanical load applied to the mobile step member alonga direction perpendicular to the translation axis. a first reception hole configured to receive the first translation shaft, a second reception hole configured to receive the second translation shaft, and in which the load bearing element is configured to transmit to the fixed step member via the first translation shaft a mechanical load applied to the mobile step member alonga direction perpendicular to the translation axis.