I now have a concern about a wall in my newly purchased house. I have asked carpenters, acquaintances who are building engineers, and thoroughly read the forum. I have a one-story house with a basement built in 1963. W-type trusses. 14 m long, 8.5 m wide. I get different opinions about one of the walls. There is consensus that the wall running parallel to the trusses (yellow) can be demolished. The wall running across (red), however, brings different opinions. Some claim self-supporting trusses, others say it is a load-bearing heart wall. Since I opened up a bit in the wall, I see that the stud frame is nailed to the ceiling just like the other one. I can't find anything in the attic that would show that there is a column going up to the roof ridge. I'm not really getting anywhere right now. Is the grand finale to hire a structural engineer?

Regards
Rasmuz
 
  • Floor plan of a one-story house with basement, featuring highlighted walls. The red line indicates a wall in question about structural integrity.
  • Blueprint of a single-story house with basement, showing floor plans and elevations. A yellow-highlighted wall in the kitchen is in focus.
  • Technical description document for a house, detailing building materials and construction specifications, from Skärstad, dated June 18.
  • House interior with exposed framework showing a partially demolished wall. Ceiling beams marked with yellow and red lines; two fridges and a wicker lamp visible.
  • Attic view with wooden trusses and various boards and materials scattered on the floor. Dim lighting illuminates the space, suggesting construction context.
  • Blueprint of a single-story house with basement, showing a debated internal wall marked in red. The plan includes rooms, sections, and elevations.
  • Blueprint of a single-story house with basement from 1963, showing floor plan and sections. A wall is highlighted in yellow near the kitchen area.
  • Attic with exposed wooden trusses, scattered boards, and building materials. Dimly lit space, highlighting structural elements of a single-story house with a basement.
  • Technical description document for house construction, including details on foundations, walls, and roof trusses, dated and stamped by building authorities.
  • Interior wall removal project showing exposed framing; yellow and red lines indicate parallel and perpendicular beams. Fridge, lamp, and partial wall visible.
namnbyte
As far as I know, sectional drawings show the critical/load-bearing elements. And based on yours, yes, the red wall is part of the load-bearing construction.
 

Best answer

BirgitS
According to the structural engineer who previously answered questions about load-bearing walls in the forum, it happened that the house designer drew the wall under the ridge even though it is not load-bearing.

According to the technical description, there are load-bearing interior walls.

If there is a beam in the living room ceiling (visible or embedded in the floor structure) in the continuation of the red wall, it means that the red wall is load-bearing, and probably vice versa.

If you want to be sure and because there are signs pointing in different directions, it is safest to hire a structural engineer to look at it on-site.
 
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