Cut Lecabalk

[Plupp 170696]

I'll jump to the original question. It seems doubtful to cut a lecabalk. The first hit on Google is that it's prestressed, and then you shouldn't cut it if it's to maintain its function. The bearing length should be 250mm per side, and then you can expect the reinforcement attachment to be somewhere within that length from both ends. Cut 0mm at the end - okay! Cut 250mm at the end - not okay. Somewhere in between is the limit

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My suspicions were that they could be prestressed, but there are many on this forum who have gone through various construction projects, so I wanted to ask the question here.

I have consulted my engineer and will today order a suitable beam 2400mm long and then it will be 4-500mm with support on each side of the opening.

 

[Plupp 170696]

I think a Lecabalk is "Mickey Mouse" in your case, use an H-beam or similar. (iron)
You must also ensure that the load can be carried by the walls the H-beam rests on.

Lecabalk in all its glory, but it can handle 3 MPa from the factory, and it shouldn't be cut to maintain these MPa.

Trust me, you will shed many tears if your house starts to "move", so better safe than sorry.

Best regards, jawen

Of course, I don't want the house to move, that's why a beam must be placed under the wall, over the opening according to the engineer's instructions.