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MN | I do know from talking to an engineer, and the 70 yo owner of a beam salvage yard, for a beam to support my house, that a W10x50 will support 60k on a 20ft span. I would think that W16x36 on 2' centers would be more than enough to support 90k. Not to mention if you're talking 90k on a semi, you wouldn't have the full weight in the center of the bridge, well, ever. | |
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