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How to justify timber grade 50 years ago
This time, I tried to attach a fireplace hood (400 lbs) to the existing wood joist. Using DF #2, I noticed the wood joist could not even hold its own existing loads. But the contractor argued that nobody use DF #2 50 years ago and the joist without any knots should be classified as DF #1 and...- jason76
- Thread
- Replies: 4
- Forum: Demolition & Renovation engineering
