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25-foot span -- what materials to use
After posting this question with too many details previously, I will try the basics. I am looking for a material (angle iron, box steel, or similar) to span a 20-foot length without sagging. It will only need to support its own weight + 15% or so. Weight is an issue so lighter is better. Great...- matt13421342
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- Replies: 5
- Forum: Structural engineering general discussion
