Glulam post - Knot/Crack and strength

[Rosemax]

Hello,

I'm going to assemble a glulam frame and on one of the glulam posts, there's a knot right at the edge where it has cracked, and the supplier seems to have repaired it with some kind of chemical wood (?).

Could this negatively affect the strength in any way? There are a total of 2 posts at the front (115 x 115) which are supposed to support a hell of a weight.

 

[vanpire]

I think you can be calm!

 

[Stefan N]

Purely cosmetic, especially on a pillar.

 

[Kallebo]

Glulam posts of that dimension can support a heck of a weight... it would be interesting to have that weight specified!

I would guess that the value you calculated for the post's strength includes a substantial margin, so the small thing in the image is likely only cosmetic.

OffT. I read a thesis (which I can't find again) where the student tested posts in a press with various fastenings and compared them to the theoretical buckling values. All tested were at least 30% above the theoretical, I even think that one withstood double.

 

[Rosemax]

Thanks for the reassuring answer!

It's Willab that did the calculation, so let's hope they've been a bit generous

 

[verktygsgurun]

Willab uses that thickness for the posts so that the bottom/top track of the sliding sections does not stick out beyond the post. It looks better that way. In terms of structural strength, thinner posts would have been sufficient.