The invention provides a method of assembling a roof of a cargo body. A plurality of sidewalls are provided, each comprising a side panel and an upper rail coupled to the side panel. A roof panel is located above the plurality of sidewalls adjacent the upper rails. A roof bow extends between the upper rails below the roof panel. The roof bow is fixed to a track of one of the upper rails with a fastener.

A recreational vehicle body includes a base and a chassis integrally molded with the base, the chassis including a plurality of ribs that extend downward from the base. The recreational vehicle body includes one or more layers that are molded to integrally form the base and chassis.

A trailer having a plurality of elongate floor members, each of the floor members connected to an adjacent floor member to define a floor of the trailer, side wall members attached to opposed sides of the floor, an axle assembly attached to the side wall members, and a tongue assembly attached to the side wall members.

A vehicle (1) includes a cargo carrying space enclosure (2), wherein the enclosure (2) has a tubular section (5) which is provided with a floor (6), a roof (7) and opposite walls (8) which extend between the floor (6) and the roof (7). At least the walls (8) and at least one of the roof (7) and the floor (6) have a laminar structure of interconnected layers (11). Each of the layers (11) is continuous along the walls (8) and the at least one of the roof (7) and the floor (6) as seen in a cross-section of the tubular section (5).

A louvered sidewall cargo container assembly for reducing crosswind exposure includes a cargo container, which is substantially cuboid shaped and comprises a pair of sidewalls, a front, a back, a bottom, and a roof. Each sidewall comprises a plurality of louvers. An actuator is engaged to the cargo container and is operationally engaged to each of the plurality of louvers. The actuator is positioned to selectively motivate each of the louvers between a first position a second position. In the first position, the louver is substantially perpendicular to the bottom and each of the plurality of louvers is in a closed configuration. In the second position, the louver is transverse or parallel to the bottom, extends into the cargo container, and each of the pluralities of louvers is in an open configuration. In the open configuration, the pluralities of louvers allow passage of a crosswind through the cargo container.

A support frame assembly configured to strengthen an upper frame portion of a frame of a vehicle, comprising a first frame member having a first end and a second end, and a second frame member having a first end and a second end, wherein both the first ends of the first and second frame members are configured to couple to a front half of the frame and the second ends of the first and second frame members are configured to couple to the front half of the frame to strengthen the upper frame portion, at least one of the first and second ends of each of the first and second frame members including at least one mechanically coupled joint configured for coupling each of the first and second frame members to the front half of the frame.

A container including a first panel with a first edge having a first protrusion with a first contoured profile with at least one projection, a second panel with a second edge having a second protrusion with a second contoured profile with at least one projection, and a spline with a first channel that defines a recess with an interior profile, and a second channel separate from the first channel that defines a recess with an interior profile. The first and second channels receive the first and second protrusions, respectively, such that the first contoured profile is complementary to a portion of the interior profile and the second contoured profile is complementary to a portion of the interior profile. The first and second panel include a mid-section extending from the first and second edges, respectively. The first and second edges have a greater thickness than the thickness of the mid-sections.

A cylindrical cargo container is formed of longitudinal, extruded arcuate panels joined pairwise at abutting edges to form a cylindrical tube. The container is mountable on a separate wheeled chassis to form a semi-trailer or railcar, or a chassis integral with a truck. The container may be substantially smooth on inner and outer surfaces, to provide optimal aerodynamics and freedom of motion of cargo within the container. The panels may have inner and outer skins bridged by multiple webs. Such structure may provide protection from punctures to the outer or inner skins. The container is useful to transport waste including municipal or industrial waste, and may be part of a tipper trailer. The container, trailer, truck, or railcar may be used with a compactor for compacting the waste within the container.

Provided herein is a shock deflecting wall panel and beam assembly, beam, and truck trailer using the same. The trailer wall panel assembly comprises at least one wall panel and at least one beam, wherein the at least one beam is configured to be received and retained in the at least one wall panel. The beam comprises at least one edge, a first beam corner, a second beam corner and a third beam corner, a first arm, an intermediate section, and a second arm, wherein the first and second arms are substantially parallel to one another, and the beam is configured to be substantially vertically extending.

A protective rail for a trailer is formed of an extension or ridge projecting outwardly from a wall of the trailer and extending along at least a part of a length of the wall. The protective rail is provided with tie-down anchors for coupling with tie-downs having couplers such as rings, eyes, or loops. The anchors may tongues formed in the protective rail when the protective rail is cut-out at selected locations along the protective rail. The anchors may be sized and shaped such that the surrounding portion of the protective rail prevents or tends to prevent other trailers or objects contacting the protective rail from damaging or becoming caught on the anchors.