Spiral 

 Columns 



CORRUGATED BAR COMPANY, INC. 



Column__ 



\ Diameter 



SPIRAL COLUMNS 



Safe Axial Loads in Thousands of Pounds 



New York City Building Code Requirements 



Ratio of Length of Column to its Side or Diameter, 

 limited to 15. 



NOTB — Size and pitch of spiral wire Is given at head of each group of loads for each size column. 



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