I-beam track with a Separate attachment portion

Abstract

A dual sided extrusion, where one side has a different shape than the other side, and the extrusion is intended to be used in different orientations depending on the application.

What is claimed is: 
     
         1 . A method, comprising:
 first using a structural extrusion in a first direction hanging from a ceiling where an I-beam shaped portion faces down and holds a load; and   second using the same structural extrusion in a second direction mounted in a floor, where an open cavity faces up and holds a load.   
     
     
         2 . A method as in  claim 1 , wherein said first using comprises mounting from the open cavity, and where said second using comprises mounting from the I-beam portion. 
     
     
         3 . A method as in  claim 1 , wherein said first using comprises using a captive nut, which held within said open cavity between sidewalls of said cavity portion, in a way that prevents said nut from rotating inside said cavity portion. 
     
     
         4 . A method as in  claim 1 , further comprising using the same clamp to hold said extrusion in said first direction and in said second direction.