| Woodworkers/physicists - what's the score here? 20:21 - Mar 14 with 559 views | NthQldITFC |
I'm drilling holes through horizontal pine beams to support round section aluminium tubing (in the other horizontal dimension), which will be load bearing. I'm trying to work out whether to drill in the middle of the beams, or slightly higher or slightly lower.
Now, I know (or believe that I know) that wood is generally stronger in compression than tension, which would tend to suggest that the holes ought to maybe be a bit above the centre line. Correct?
I don't think it's critical, I just tend to get a bit obsessed about things like this. |  |
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| Woodworkers/physicists - what's the score here? on 22:48 - Mar 14 with 444 views | Guthrum |
If you strength margins are so small that it makes a difference, then you probably need a slightly bigger piece of wood (top to bottom).
Problem with pine is much of it - especially from the likes of B&Q or Wickes - is so wide grain that you get lines of weakness, which could cause the rails, if very heavily loaded, to split the wood. Extra support/screws for the timber will help that.
I'm picturing a sort of rack/shelf arrangement. |  |
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| Woodworkers/physicists - what's the score here? on 22:51 - Mar 14 with 439 views | Swansea_Blue |
| Woodworkers/physicists - what's the score here? on 22:48 - Mar 14 by Guthrum |
If you strength margins are so small that it makes a difference, then you probably need a slightly bigger piece of wood (top to bottom).
Problem with pine is much of it - especially from the likes of B&Q or Wickes - is so wide grain that you get lines of weakness, which could cause the rails, if very heavily loaded, to split the wood. Extra support/screws for the timber will help that.
I'm picturing a sort of rack/shelf arrangement. |
“you get lines of weakness, which could cause the rails, if very heavily loaded, to split the wood“
I’m not an expert, but as some advice to a self-confessed, obsessive worrier, that might not be too reassuring  |  |
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| Woodworkers/physicists - what's the score here? on 22:54 - Mar 14 with 431 views | Guthrum |
| Woodworkers/physicists - what's the score here? on 22:51 - Mar 14 by Swansea_Blue |
“you get lines of weakness, which could cause the rails, if very heavily loaded, to split the wood“
I’m not an expert, but as some advice to a self-confessed, obsessive worrier, that might not be too reassuring |
Overengineering is better than underengineering*.
* Except in aircraft (sometimes) and spaceships. | |
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