Variable configuration shelving apparatus and method

1. A plurality of reversible shelf-supporting beams for use in a shelving apparatus, each said beam operatively cooperable with others of said plurality beams for supporting a shelf in said apparatus and each beam comprising:

an elongated web having a lower edge;

said web having a top edge defined by a reverse folded portion;

a shelf-supporting flange extending in a perpendicular direction from said reverse folded portion and from said web;

said flange having first and second opposed shelf supporting surfaces;

said flange being spaced from said top edge at a first distance and from said lower edge at a second distance greater than said first distance;

said first opposed shelf supporting surface facing upwardly when said beam is oriented in a first position and said top edge is above said flange; and

said second opposed shelf supporting surface facing upwardly when said beam is reversed into a second position with said lower edge above said flange;

wherein a shelf supported on said beams has edges which are flush with adjacent top edges of a beam in said first position and at least one other shelf edge adjacent a beam in said second position, wherein said top edge of said beam in said second position is above said one other adjacent shelf edge.

2. A beam as in claim 1 further comprising means on said beam for mounting said beam on a supporting column in a selected first or a selected second and reversed position.

3. A reversible beam as in claim 1 wherein said beam is selectively mountable in said shelving apparatus in either of said two positions independently of the position other beams in said apparatus and said flange supports a shelf supported by other beams disposed in either of said two positions.

4. A method of assembling a shelving apparatus comprising support columns, shelf-supporting beams each having an upper edge, a lower edge and a shelf supporting flange extending along and projecting from said beam closer to said upper edge than said lower edge, wherein said beams are selectively reversible between first and second positions, and shelves and including the steps of:

orienting said columns vertically;

mounting said beams on said columns in at least one respective set of beams for supporting one shelf with selected ones of said beams of said set in a first selected position, and other selected beams of said set in a second selected position;

orienting a shelf on said set of beams with at least one edge of said one shelf being flush with adjacent upper edges of beams in said first position;

and at least one other edge of said shelf adjacent a beam in said second position oriented below a proximate edge of said beam in said second position.

5. A method as in claim 4 including the further step of mounting another set of beams on said columns wherein all beams of said other set are in said first position.

6. A method as in claim 4 including the further step of mounting another set of beams on said columns wherein all beams of said other set are in said second position.

7. A method of assembling a shelving apparatus having a plurality of columns, reversible shelf-supporting beams and shelves with shelf edges being variable between shelf edges flush with beam edges and below other beam edges, said beams having a shelf supporting flange closer to an upper edge said beam than a lower edge of said beam, said method comprising the steps of:

orienting columns vertically;

mounting each beam of a set of beams on said columns in one of a selected first position with an upper edge closer to said flange, or a reversed second position with a lower beam edge above said flange; and

orienting a shelf on said set of beams respectively for said shelf;

a shelf edge of said shelf being flush with an upper beam edge of an adjacent beam in a first position, and another of said shelf edges oriented below another edge of an adjacent beam in a reversed second position, and said shelf having a shelf surface entirely in a horizontal plane.