Modular rack assembly

1. A storage rack comprising:

at least one left end support unit and at least one right end support unit configured to support ends of at least one front and one rear cross beam, each end support unit comprising:

a generally vertical front support post having at least one column of slots along its length for receiving at least one slot engaging member of the front cross beam;

a generally vertical rear support post having at least one column of slots along its length for receiving at least one slot engaging member of the rear cross beam;

a generally horizontal upper brace fixedly attached to and extending from the upper end of the front support post to the upper end of the rear support post, the upper brace having a plurality of openings;

a generally horizontal lower brace fixedly attached to and extending from the lower end of the front support post to the lower end of the rear support post, the lower brace having a plurality of openings aligned with the plurality of openings in the upper brace; and

at least one diagonal brace fixedly attached to and extending diagonally between the front support post and the rear support post;

wherein the diagonal brace is separated from the upper brace and lower brace by a distance;

at least one shelf panel;

at least one front cross beam configured to extend, between the left and right front support posts of the left and right end support units;

at least one rear cross beam configured to extend, between the left and right rear support posts of the left and right end support units at about the same elevation as at least one of the at least one front cross beam;

wherein the at least one front cross beam and the at least one rear cross beam each have a cross-sectional configuration comprising a C-shape having a middle portion and two end portions extending from the middle portion in a non-parallel direction, and wherein one of the end portions includes an L-shaped ledge extending from the end portion, the L-shaped ledge comprising a first portion and second portion whereby the first portion extends from the end portion in the direction of the other end portion, and the second portion extends from the first portion in a direction away from the middle portion, such that the second portion supports the at least one shelf panel;

wherein, when a first, upper one of the storage rack is stacked on top of a second, lower one of the storage rack:

the horizontal lower braces of the upper storage rack abut the horizontal upper braces of the lower storage rack;

an opening at each end of the horizontal lower braces of the upper storage rack are aligned with the an opening at each end of the horizontal upper braces of the lower storage rack; and

the plurality of aligned openings in the horizontal lower braces of the upper storage rack and the horizontal upper braces of the lower storage rack are configured to receive a plurality of mechanical fasteners to attach the upper storage rack to the lower storage rack.

2. The storage rack as claimed in claim 1 , wherein the pair of slot engaging members extend inwardly from the flange to engage the slots.

3. The storage rack as claimed in claim 1 , wherein:

the storage rack comprises four pairs of front and rear cross beams, four shelves, and four end support units;

each of the end support units is about 3 inches wide, about 17 inches deep, and about 36 inches high; and

the disassembled storage rack is capable of being packaged in a space that is about 39 inches by about 17 inches by about 16 inches.

4. A stacked storage rack assembly comprising:

an upper storage rack stacked on top of a lower storage rack, each storage rack comprising:

at least one left end support unit and at least one right end support, each end support unit comprising:

a generally vertical front support post having a plurality of openings along its length;

a generally vertical rear support post having a plurality of openings along its length;

a generally horizontal upper brace fixedly attached to and extending from the upper end of the front support post to the upper end of the rear support post, the horizontal upper brace having a plurality of openings;

a generally horizontal lower brace fixedly attached to and extending from the lower end of the front support post to the lower end of the rear support post, the horizontal lower brace having a plurality of openings; and

at least one diagonal brace fixedly attached to and extending diagonally between the front support post and the rear support post;

wherein the diagonal brace is separated from the upper brace and lower brace by a distance;

at least one front cross beam, wherein the at least one front cross beam is mounted on and extending between the left and right front support posts of the left and right end support units;

at least one rear cross beam, wherein the at least one rear cross beam is mounted on and extending between the rear support posts of the right and left end support units at about the same elevation as at least one of the at least one front cross beam;

wherein the at least one front cross beam and the at least one rear cross beam each have a cross-sectional configuration comprising a C-shape having a middle portion and two end portions extending from the middle portion in a non-parallel direction, and wherein one of the end portions includes an L-shaped ledge extending from the end portion, the L-shaped ledge comprising a first portion and second portion whereby the first portion extends from the end portion in the direction of the other end portion, and the second portion extends from the first portion in a direction away from the middle portion, such that the second portion supports a shelf panel;

wherein:

the horizontal lower braces of the upper storage rack abut the horizontal upper braces of the lower storage rack;

an opening at each end of the horizontal lower braces of the upper storage rack are aligned with an opening at each end of the horizontal upper braces of the lower storage rack; and

a plurality of mechanical fasteners extend through the plurality of openings in the horizontal lower braces of the upper storage rack and the plurality of aligned openings in the horizontal upper braces of the lower storage rack to attach the upper storage rack to the lower storage rack.