Load-bearing beam

[Honsk]

There was basically a moisture problem in the basement that wasn't used. Now after drainage, it's better, but unfortunately, there will be some moisture.

The question is, can I replace the 150x150 beam (rotten).

With.

3 pcs. 45x145 glued together with D3 wood glue and screwed with 2 pcs. M8 bolts with large washers, with a 600 mm center-to-center distance. Will it have the same strength? I read that a 45x145 should handle 31 kN. Unsure.

Best regards, Piotr

 

[heimlaga]

Can't you get a new 150x150?

 

[heimlaga]

The load-bearing capacity will be the same with three 50x150 planks, but you should nail them together, not screw.

 

[Honsk]

Can't you get a new 150x150?

Yes, but I have some of the timber lying around.

 

[fribygg]

3 pcs. 45x145

It will probably work, a rust-protected I-beam would be better, but you can nail together a replacement for your old 6-inch beam.

 

[Honsk]

The load-bearing capacity will be the same with three 50x150 planks, but you should nail them together. Not screw.

I have 45x145. Otherwise, it goes up to 45x170, same setup. The opening in the path is 150. Won’t the nails come loose over time?

 

[fribygg]

Won't the spikes come loose over time?

Nah, you can supplement with your M8s as well if you feel like it.

 

[heimlaga]

Have 45x145. Otherwise, go up to 45x170 same setup. The opening in the wall is 150. Won't the nails come loose over time?

Screws are brittle and break over time when the load varies.

Nails rarely come loose. Especially not galvanized nails. I usually nail that kind of thing with five-inch nails.

It is possible to screw with through-bolts with nuts and large washers, but it's not necessary. The individual planks should stand on edge, not lie on the flat.