Hello!

I have a friend who is building a pergola. Now beams need to be placed between supports, with a length of 5.2m. What dimension is needed? There won't be much more than the weight of the beams themselves and some climbing plants to support, but the span is large.

A little deflection is naturally okay, but it shouldn't look odd. Grateful for any input!
 
Hello Daniel!

If you calculate 20 kg per meter, 45x170 C 24 is the smallest possible dimension. Considering that the pergola is always outdoors and that the eye is sensitive to that type of deflections, I would choose 45x220 C 24.
 
  • Like
Daniel_N and 1 other
  • Laddar…
J justusandersson said:
Hi Daniel!

Counting with 20 kg per meter, 45x170 C 24 is the minimum possible dimension. Considering the pergola is always outdoors and the eye is sensitive to that type of deflection, I would choose 45x220 C 24.
Great answer, thanks!
 
Click here to reply
Vi vill skicka notiser för ämnen du bevakar och händelser som berör dig.