Hi,

I am going to install a window that is 50 cm wide on a wall with vertical studs 45*170 with a 60 cm center-to-center spacing. Naturally, I need to move one of the vertical studs about 10 cm. The center-to-center will then be 70 cm around the window. Is a vertical stud needed on the other side of the window, or does this 10 cm have negligible impact? There is a roof truss on the top plate above the stud that is being moved. Better with insulation than studs in the wall from an energy perspective... :)

/Vallasteffo
 
Mikael_L
Hello, welcome to the forum.

To be completely sure, you should install a standing rule for variation. It is inserted at the top of the standing rules under the wall plate.

In your case, the truss is only 10cm from a rule, so the wall plate might handle the force anyway, but without more information, it cannot be determined. (And I wouldn't be able to determine it either since I don't have the right skills)

What is missing includes the roof's width, snow zone, roofing material, and the roof's slope to determine the load that the wall plate + any supporting beam must bear.
 
Can one instead of offsetting with a joist on edge under the collar beam, complement with a standing joist on the other side of the window so that cc becomes 60 or is it the pressure on the collar beam that is critical? It would indeed use less wood with offsetting. Suggestions on dimensions in that case? Is 45*170 at the outer edge sufficient?

(Småland, cement tile, 27 degrees, trusses cc 120)

/'Vallasteffo
 
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