Question

Which will support more load when used as a building column: 1) A 6" x 6"...

Which will support more load when used as a building column:
1) A 6" x 6" (actual size) wood ( Douglas Fir) post 16 feet long, pinned at both ends

or


2) A structural steel W10 x 39 I-beam 20 feet long, pinned at the ends

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