A container includes a first contoured edge of a first wall panel, a second contoured edge of a second wall panel, and a spline with a first channel that receives the first contoured edge and a second channel that receives the second contoured edge to form a spline joint securing the first and second wall panels together. The first and second channels are symmetrical with openings in opposite directions

An example reinforced wood flooring for use in forming a truck trailer or container floor may include a wood member. The wood member may include a plurality of wood strips that are attached together. The wood member may also have a top surface and a bottom surface. An essentially water impermeable fiber-reinforced thermoplastic underlay may be adhered to the bottom surface of the wood member.

An example reinforced wood flooring for use in forming a truck trailer or container floor may include a wood member. The wood member may include a plurality of wood strips that are attached together. The wood member may also have a top surface and a bottom surface. An essentially water impermeable fiber-reinforced thermoplastic underlay may be adhered to the bottom surface of the wood member.

A container includes a first contoured edge of a first wall panel, a second contoured edge of a second wall panel, and a spline with a first channel that receives the first contoured edge and a second channel that receives the second contoured edge to form a spline joint securing the first and second wall panels together. The first and second channels are symmetrical with openings in opposite directions

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.

The collapsible shipping container (10) may comprise a base (12), a roof (14), a pair of side walls (16), a pair of end walls (18), four telescoping corner columns (20), and means such as air jacks (21) and or scissors devices (52) for elevating and lowering the roof, side walls and corner columns. Each of the end walls (18) may be movable between up and down positions, each of the side walls (16) may be formed with a plurality of longitudinally extending, overlapping panels, and the means for elevating and lowering the roof, side walls and corner columns may be operative with the end walls (18) in their down positions.

An example reinforced wood flooring for use in forming a truck trailer or container floor may include a wood member. The wood member may include a plurality of wood strips that are attached together. The wood member may also have a top surface and a bottom surface. An essentially water impermeable fiber-reinforced thermoplastic underlay may be adhered to the bottom surface of the wood member.

An example reinforced wood flooring for use in forming a truck trailer or container floor may include a wood member. The wood member may include a plurality of wood strips that are attached together. The wood member may also have a top surface and a bottom surface. An essentially water impermeable fiber-reinforced thermoplastic underlay may be adhered to the bottom surface of the wood member.

The collapsible shipping container (10) may comprise a base (12), a roof (14), a pair of side walls (16), a pair of end walls (18), four telescoping corner columns (20), and means such as air jacks (21) and or scissors devices (52) for elevating and lowering the roof, side walls and corner columns. Each of the end walls (18) may be movable between up and down positions, each of the side walls (16) may be formed with a plurality of longitudinally extending, overlapping panels, and the means for elevating and lowering the roof, side walls and corner columns may be operative with the end walls (18) in their down positions.