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Originally Posted by Attilathecanuk
First get some ACQ treated 3” screws and secure th ledger to the house with same pattern as those nails (PWF lumber will corrode those nails). A 3-ply 2x10 beam will support your joists and I would use 2x10 for joists as well with one row of mid- length bridging or blocking. I would do 3 posts (screwpiles) under that beam 2 feet back from the edge of deck (or 10 feet from the bump out of the house).
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Thanks for the tip on the ACQ treated screws. I knew I needed those for the decking but never would have thought about adding them into the ledger that was already installed.
According to the Edmonton uncovered deck guide I posted I can only span a 2x10 13'8" at max. With a 24" joist cantilever the left most joist and the 2 right most joists will be 14' all the rest will be under 13'8".
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I wouldn't span 16 ft with 2x12. 2x10 joists attached to the ledger board with joist hangars. 2x12 joists are also expensive.
Support the deck in the middle and end with 3 ply beams (2 ft cantilever on the end) on post saddles into concrete "piles"
We dug our piles with one of those augers and it made a large hole. I would suggest a small auger to save on concrete costs.
You'll be able to park a tank on it.
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How deep did you dig for your piles? Was this in Edmonton?