Hello!

I wanted to ask if you know which strength class is the strongest when purchasing glulam columns?

30c, 30h or 28h?

Thank you very much for the answer.
(I've searched but haven't found anything clear.)
 
As you have written them. In descending order.

Edit: sorry, I was mistaken. h is stronger than c.
That is, 30h 30c 28h
 
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swealp
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Maxwells demon TotalControl said:
The way you have written them. In descending order.

Edit: sorry, I saw wrong. h is stronger than c.
That is 30h 30c 28h
Thank you for your response!

Is there a big difference between these?

Because if so, my calculations don't add up according to byggbeskrivningar.se :(

Thank you!!!!!
 
  • Table of laminated timber cross-sections with utilization rate, minimum bearing length, and support reaction data. Highlighted row shows GL30h 115x115 timber.
The only thing I can find is this, and it tells me nothing.

It seems that parallel pressure should be high if it's to be used as glulam.

Help! :D
 
  • Table comparing strength and stiffness values of different glulam beam types (GL28cs, GL28hs, GL30c, GL30h) in MPa, including bending and compression values.
It seems that GL28h and GL30h are the better ones in this list above.

If you look at Density (kg/m3).

What do you think?

Thanks!
 

Best answer

Looking at 'Compression parallel to grain', 30H is the best and 30C the worst of the three.
 
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useless useless said:
Looking at 'Pressure parallel to the fibers', 30H is the best and 30C is the worst of the three.
Thanks! I thought so too.

Thanks thanks.
 
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