I am going to build a deck between a retaining wall and the house and need to build a beam for a 2.4 m span for the joists to rest on. According to the dimensioning tool on byggbeskrivningar.se, posts of 95*95 would work. But as I want the "post" to be as wide as the retaining wall, I am wondering if the construction below can work just as well? It consists of three 95*45 joists.
 
  • Rendering of a house with wooden beams between a wall and a support wall, showing a proposed deck construction. A person stands beside the structure.
  • A diagram showing a house with a partially built deck featuring three 95x45 mm beams against a retaining wall, intended to match the wall's width.
  • White house with snowy surroundings, showing a support wall where a deck is planned to be built. Forest and neighboring houses are visible in the background.
Spontaneously, yes, without problem. If you attach them securely to the wall, their load-bearing capacity increases significantly.

Is it just a balcony on top? No problem at all.
 
No problem, for columns it is usually buckling that is critical. If the columns cannot buckle (i.e., they are fixed) they hold a lot...
 
This is how it turned out in the end, maybe I should attach the pillar with more than two flat irons per side?
 
  • A wooden beam supports a block wall in construction, reinforced with metal plates. Viewer questions adequacy of two metal plates per side for stability.
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Augen81 and 1 other
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That will do nicely.
 
E earlo said:
This is how it turned out in the end, maybe I should attach the pillar with more than two flat irons per side?
Looks good!
 
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