Modular systems for use with vehicles, for mounting accessories and related methods

1. A method of packaging components of a modular system for vehicles, said components and said method comprising:

placing said components into one or more packaging boxes, said components comprising at least one of a center support having a non-circular cross-section, a bar extension, a coupling support having a top internal cavity for the center support and a lower internal cavity for the bar extension that are separated by an internal baffle, and a base support, and wherein at least two of the components are detached from one another and at least two of the components are provided each with a respective first length that can be trimmed or cut down to a shorter second length before the components are assembled onto a pickup bed.

2. The method of claim 1 , further comprising packaging a barrier into the one or more packaging boxes.

3. The method of claim 2 , wherein the barrier comprises two or more barrier sections.

4. The method of claim 1 , wherein the center support has an airfoil cross-section.

5. The method of claim 4 , wherein the airfoil has an angle relative to a lengthwise axis defined by the bar extension that is fixed or adjustable.

6. The method of claim 1 , further comprising packaging a gusset plate into the one or more packaging boxes.

7. A method of packaging components of a modular system for vehicles, said components and said method comprising:

placing a first set of components into one or more packaging boxes, said first set of components comprising a first side support comprising a vertical portion, a lower base portion extending from the vertical portion, and a joiner comprising an internal cavity having a non-circular shape along an end cross-section;

placing a second set of components into the one or more packaging boxes, said second set of components comprising a second side support comprising a vertical portion, a lower base portion extending from the vertical portion, and a joiner comprising an internal cavity having a non-circular shape along an end cross-section;

placing a first and a second bar extension into the one or more packaging boxes, said first and second bar extensions each having a first free end and a second free end, wherein the first free end of the first bar extension is configured to couple to the joiner of the first side support and the first free end of the second bar extension is configured to couple to the joiner of the second side support, and a gap is provided between the second free end of the first bar extension and the second free end of the second bar extension;

placing at least two base supports into the one or more packaging boxes, the at least two base supports comprising a first base support and a second base support,

wherein the first base support is configured to align with the lower base portion of the first side support and the second base support is configured to align with the lower base portion of the second side support;

wherein at least one of the components is provided with a first length that is shorten-able to a second length prior to completing assembly of the modular system to a pickup truck bed; and

wherein the center support is configured to be located above and between the first and the second bar extensions when the modular system is assembled to a pickup truck bed.

8. The method of claim 7 , further comprising packaging a barrier into the one or more packaging boxes.

9. The method of claim 8 , wherein a width of the barrier is adjustable.

10. The method of claim 7 , further comprising packaging at least two attachment inserts into the one or more packaging boxes, each of said at least two attachment inserts being sized and shaped for coupling into stake bed pockets of a pickup truck bed.

11. The method of claim 7 , further comprising a first coupling support and a second coupling support located in the one or more packaging boxes, said center support is configured to attach to the first and second coupling supports.

12. The method of claim 7 , further comprising packaging a gusset plate into the one or more packaging boxes.

13. A method of assembling packaged components of a modular system for vehicles, said components and said method comprising:

removing a first set of components from one or more packaging boxes, said first set of components comprising a first side support comprising a vertical portion, a lower base portion extending from the vertical portion, and a joiner;

removing a second set of components from the one or more packaging boxes, said second set of components comprising a second side support comprising a vertical portion, a lower base portion extending from the vertical portion, and a joiner;

removing a first base support and a second base support from the one or more packaging boxes;

shortening the first base support from a first length to a shorter second length;

shortening the second base support from a first length to a shorter second length;

removing a first bar extension from the one or more packaging boxes, said first bar extension having a first free end and a second free end;

projecting the first free end of the first bar extension into the internal cavity of the joiner of the first side support;

removing a second bar extension from the one or more packaging boxes, said second bar extension having a first free end and a second free end;

projecting the first free end of the second bar extension into the internal cavity of joiner of the second side support;

removing a center support from the one or more packaging boxes and coupling the center support to the first and second bar extensions;

adjusting a pitch angle of the center support; and

wherein each of the two joiners comprises an internal cavity having a non-circular shape along an end cross-section.

14. The method of claim 13 , further comprising removing a barrier from the one or more packaging boxes.

15. The method of claim 14 , wherein the barrier comprises two or more barrier sections that are movable relative to one another.

16. The method of claim 13 , further comprising assembling a gusset plate to the first side support.

17. The method of claim 13 , wherein the center support is attached to a first coupling support and a second coupling support and wherein the first bar extension is coupled to the first coupling support and the second bar extension is coupled to the second coupling support.