Caster assembly suited for use with modular racks

A shelf assembly, comprising:

• a plurality of vertical support members;
• a securing member, releasably coupled to at least one of the plurality of vertical support members, the securing member having a downfacing surface perpendicular to the vertical support members, the downfacing surface configured to bear at least a portion of the weight of the shelf assembly when the shelf assembly is lifted by a pallet disposed between the vertical support members and below the downfacing surface;
• and
• a plurality of casters, each caster having a wheel and removably coupled to the bottom of each of the plurality of vertical support members.

A method of assembling a wheeled shelf assembly having a plurality of vertical support members and a plurality of support members comprising a weight bearing member, comprising the steps of:

• removably affixing a caster assembly to a bottom end of each of the vertical support members, each of the casters comprising:
• a first member, disposed to accept a wheel on a first end of the first member;
• a caster weight bearing member coupled to the first member, the caster weight bearing member perpendicular to the vertical support members;
• removably affixing a securing member to at least one of the vertical support members, the securing member comprising a horizontal weight bearing member having a downfacing surface disposed proximate and above the caster weight bearing member, the horizontal weight bearing member also configured to bear at least a portion of the weight of the shelf assembly when the shelf assembly is lifted by a pallet disposed between the vertical support members and below the downfacing surface.

A caster assembly, comprising:

• a first member, the first member having one or more first member features disposed to be removably coupled to a corresponding one or more first matching features of a vertical support member of a shelf assembly;
• a second member, the second member having one or more second member features disposed to be removably coupled to a corresponding one or more second matching features of the vertical support member;
• and
• a sleeve, coupled to the first member and the second member, the sleeve for accepting a shaft coupled to a wheel.