Residential Deck - Wood Post
Residential Deck - Wood Post
(OP)
I don't have experience in residential construction and might come across as a rookie question :)
What is the preferred foundation detail for a wood post that supports a balcony deck. Recommendations are for bottom of footing be 42" below the existing grade for frost protection.
I was thinking of using a 12" diameter sonotube, 4 foot tall (no flare at bottom). The top of sonotube would be at grade level so that slab on grade at the entry can go around the wood post. Or should I do a 16x16x8" footing and have a 10" sonotube set on top of it.
What is the preferred foundation detail for a wood post that supports a balcony deck. Recommendations are for bottom of footing be 42" below the existing grade for frost protection.
I was thinking of using a 12" diameter sonotube, 4 foot tall (no flare at bottom). The top of sonotube would be at grade level so that slab on grade at the entry can go around the wood post. Or should I do a 16x16x8" footing and have a 10" sonotube set on top of it.






RE: Residential Deck - Wood Post
http://www.bigfootsystems.com/
RE: Residential Deck - Wood Post
Those big foots are great, but necessitate a great deal of excavation. I don't favour them at all.
RE: Residential Deck - Wood Post
Excavate a 12" to 16" dia. hole x 4 ft deep (or whatever you need to get below frost).
Set a single anchor bolt in center to work with a post base product like this: http://www.strongtie.com/ftp/catalogs/c-2013/C-201...
I had four 6x6 posts that were set like this:
RE: Residential Deck - Wood Post
RE: Residential Deck - Wood Post
I agree that it is best to have a real footing in frost, but you can design around the restriction.
RE: Residential Deck - Wood Post
I was thinking more of decks which are covered with a rof which is attached to the house (walls and often roof). I have seen a deck built to be just that (a deck) later become what amounts to an addition which damaged the main roof due to heave or more often settlement.
RE: Residential Deck - Wood Post
RE: Residential Deck - Wood Post
RE: Residential Deck - Wood Post
I love your frost line !! Try 66" .... -25C here today! !
RE: Residential Deck - Wood Post
RE: Residential Deck - Wood Post
Some of these posts are also supporting a roof over the deck and I would rather be a little conservative in this case.
RE: Residential Deck - Wood Post
RE: Residential Deck - Wood Post
RE: Residential Deck - Wood Post