Bank rule 70x

[jamaica]

Hi
I would need a wooden beam, or what might be called a stud, that is 70 thick & something between 140-170 wide.
2000 long
Type 70x145 or 70x170
I can't find this here in Gothenburg. Can anyone give a tip?

Another question. Could I glue & screw together 2 pieces of 70x70? I've seen people do that.
How much is the strength reduced by doing that?

 

[Workingclasshero]

You can do anything

Explain a bit why you're going to do it, and you'll get better help.
On Facebook there is Swedish Woodworkers, ask there as well.

/W

 

[jamaica]

You can do anything

Tell us a bit more about why you want to do it, and you'll get better help.
On Facebook, there is Swedish Woodworkers, ask there too.

/W

It will be a load-bearing beam in a 2-meter-long opening of an interior wall.
It used to be a door opening that we have now made larger.

Previously, there was a 95x95 stud, but right above the door opening, there's a 70x140.
I thought if I remove these a bit and replace with 70x140 (at least) all the way (2m) and add a couple of vertical ones on the sides, it should be good?

But as mentioned, I can't find what I was looking for and thought about gluing and screwing 2 70x70 possibly?

 

[AG A]

Hello
I need to have a beam made of wood, or what might be called a stud, that is 70 thick & something between 140-170 wide.
2000 long
Like 70x145 or 70x170
I can't find this in Gothenburg. Anyone who can give a tip?

Another question. Could I glue & screw together two 70x70? I've seen people do that.
How much does it weaken the strength of it?

The problem is that the standard is only 45mm. Then there is, as mentioned, 45x70. But if you screw-glue two of those it only becomes 90mm. Otherwise, it is okay to screw-glue studs. Depending on how it’s done, it can even become stronger.
Otherwise, there might be 70mm if you look at glulam. Which is essentially what you were thinking of doing, but ready-made.

 

[jamaica]

The problem is that the standard is only 45mm. Then there is, as mentioned, 45x70. But if you screw-glue two such pieces together, it only becomes 90mm. Otherwise, it's fine to screw-glue studs. Depending on how it's done, it can even be stronger.
Otherwise, there might be 70mm if you look for glulam. Which is essentially what you were planning to do, but pre-made.

I have looked for glulam too but haven't found that dimension. But do you think if I screw-glue 2 pieces of 70x70 so it becomes 70x140, it could be strong enough?
If so, I'll do that.
See above for purpose.

 

[fribygg]

I believe Varbergsträ has what you're looking for.

 

[AG A]

I have also been looking for laminated beams but haven't found that size. But do you think if I glue and screw 2 pieces of 70x70 so it becomes 70x140, it will be strong enough?
In that case, I'll do it.
See above for purpose

No, 70x70 won't be good to glue and screw. The thinner each layer, the better. Ideally, you would screw and glue 7 pieces of 22x70mm. 3 pieces of 45x70 might also work.

 

[jamaica]

No, 70x70 will not be good for screw gluing. The thinner each layer is, the better. Ideally, you should screw glue 7 pieces of 22x70mm. 3 pieces of 45x70 might also work.

Alright, sounds good. I'll go for 3 pieces of 45x70. Possibly 4.
I don't want it to hang too low, so I'll double-check that, but otherwise 3 pieces of 45x70.
I have plenty of those left over, so even better.
I'll see if I can find something on YouTube that shows how to glue & screw.
Anything specific I should keep in mind?

But it will be 135 wide with 3 pieces of 45x70. Will it be significantly strong compared to a whole lot with the same dimensions?

 

[jamaica]

Another question I just thought of. What type of screw & what density should I have on them?