We are going to build a new larger deck in front of our house and initially thought we would attach the ledger board closest to the house to the house wall. But after spending some time on the forum and online in general, we realized it might be good to have the deck detached from the house. My idea was then to have 4 ledger boards with 2.5m spacing and then joists on cc60 on top. The footings on the same ledger board are spaced 2m apart. I was planning to use 45x170 for the ledger boards and 45x145 for the joists and then 28mm decking on top of that. Based on the calculation from
https://www.byggbeskrivningar.se/dimensionering/golvbjalklag-ute/ I think it should work well. Or am I completely off track and should dimension differently? The deck will be approximately 14.5x7.5m in size, and based on the calculations, there will be 32 footings distributed on 4 ledger boards.
Related to this, we are redoing the drainage to avoid having to tear up the deck unnecessarily in the future. Is it appropriate to place footings in the crushed stone where it has been drained? Or is there a risk of settling since it has been so recently laid in place? It will, of course, be compacted with a plate compactor.
Extremely grateful for any form of feedback. They are currently working on the drainage, so the footings should soon be in place.
