Question: Select the lightest wide - flange steel section for a simple beam of 2 0 - f t span that will carry a uniform load

Select the lightest wide-flange steel section for a simple beam of 20-ft span that will carry a uniform load of 4kipsft. Use A36 steel and assume that the beam is supported laterally for its entire length.
W8x67
W18x60
W14x68
W12x87
Select the lightest wide - flange steel section

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