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Old 03-02-2021, 08:13 AM
threepiece threepiece is offline
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Default LVL Lumber Size?

Since the information gained here will support the new shop I qualify this wood related thread as legitimate.

As I am doing design work I realized the possibility that the specified dimensions of LVL lumber may be nominal as opposed to actual. I assume that since it is an engineered product it should be indicated as actual but I could not find any data to support this on the internet. Can anyone confirm my belief?
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Old 03-02-2021, 09:10 AM
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I have always believed it to be nominal since the manufacturer supplier of the components is nominal. Just my beliefs, with no references to support it.
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Old 03-02-2021, 09:34 AM
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https://www.bc.com/versa-lam-lvl-span-size-chart/

https://bct.eco.umass.edu/publicatio...s-and-headers/
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Old 03-02-2021, 12:54 PM
threepiece threepiece is offline
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Yes, I have looked at both of those sights already. I did not see mention of nominal or actual. I'm surprised the manufacturers aren't indicating this on their sights, it has me wondering if I have overlooked this.

I could call a supplier but I know from past experience one can't always rely on getting accurate information, even when it involves something as simple as reading a tape scale.
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With the amount of energy that is being consumed I expect most people on earth should be living in Utopia. And now this?

It started hitting the fan in the 1950's https://m.youtube.com/watch?v=nRnNDkHb0MU

A technologically advanced society would teach their children how to start a fire by rubbing two sticks together before teaching them how to use a lighter.

If you are not having fun then you are doing it wrong.
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Old 03-02-2021, 01:41 PM
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Quote:
Originally Posted by threepiece View Post
Since the information gained here will support the new shop I qualify this wood related thread as legitimate.

As I am doing design work I realized the possibility that the specified dimensions of LVL lumber may be nominal as opposed to actual. I assume that since it is an engineered product it should be indicated as actual but I could not find any data to support this on the internet. Can anyone confirm my belief?
Just curious, would it be critical if the dimensions were off a 32nd or so?
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Old 03-02-2021, 03:00 PM
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Page 3 of the Western BCI and VersaLam Specifier download shows actual dimensions. That's where I would start. I look at it as the same as going to a Ryerson steel catalog and finding out a W14x283 has a height of 16.74" and a width of 16.11", not the nominal 14" used in the description.
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Last edited by arizonian; 03-02-2021 at 03:13 PM.
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Old 03-02-2021, 03:15 PM
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And it might be a good idea to actually call the place you are going to get your lumber from, to see what brand they carry. And then go to their website to get specifics.

It might vary from manufacturing company to different suppliers. And from region to region.




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Old 03-02-2021, 05:56 PM
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Everything from everyone varies, in my experience.
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Old 03-02-2021, 06:00 PM
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In this area if you have that type of floor joist, you must notify the fire dept. It seem that the fire rating is different and some floors have collapsed very quickly.
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Old 03-03-2021, 07:25 AM
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Quote:
Originally Posted by milomilo View Post
Just curious, would it be critical if the dimensions were off a 32nd or so?
I suspect the Op is building some welded steel sockets to hold the wood I-joist's
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