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HSS vs WF columns

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What is more commonly used in an office building? HSS or WF columns?
I am looking at an office building now with a pretty high floor to floor height (16ft). The weight I get using HSS columns is about 40% less than the weight I am getting if I use WF columns. But I am not sure if the HSS material cost will still cause the HSS option to be more expensive.
If you were given that the WF choice was 50,000 lbs and the HSS was 35,000 lbs, which one would you choose?  

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