New construction house with deck supports in question

6x6 supports …over 50% material removed here…and the left over is being used to support girder…

all of the supports are cut like this.

also ledger board was used instead of joist strapping…

the deck was not bolted to the home, but screws were used. I know simpson strongtie are allowed…took close up pictures of the screw heads to see if could determine what kind they were…but dont think it would identify them…

two screws…spaced 33 inches apart…

Lastly…a couple of the 6x’s were well over 48 inches tall…one being 70 inches…diagonal bracing required?

Ok…looked it up and 6 ft is the max height for a 6x6 before it needs diagonal bracing…so this deck is good for that.

the rules for Notching a post to recess a deck beam are not as clear from what I can find on the interwebs…

These 6x6’s support a deck AND a roof above …so decent amount of loads going on here.

Use this as your guideline of what you saw.

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great link…thanks

Not a problem notching the lower support posts. It makes a good connection point.

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On page 10 of this guide it reads in part:
note: Diagonal Bracing is prohibited on center posts.

And I was wondering the reason why it is not allowed? I see diagonal bracing on center posts often even at today’s inspection…

Maybe they think the trolls under the deck will hit there head?


O the gap in the railing is for snow removal. :thinking:

I would still report it as a safety hazard. They can make a removable one, or some such.

And, you are protected. :grin:

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It is my house. I have not got to the stairs, But coming soon before snow flies. :grinning:
I will drop down one step to a platform, Then run the stringers parallel to the deck. :+1:t2:

Not to over stress the center posts. By adding bracing you can transfer more lateral load to the posts and overload them. Why the middle ones? because they already receive more vertical load than the corner posts without any bracing.

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Thanks Simon, I also saw that comment on structuremag.org but I am not convinced.

At https://www.deckmagazine.com/design-construction/framing/building-a-freestanding-deck-in-a-seismic-zone_o they built a deck in a seismic zone and used diagonal knee braces on centre columns:

The frame was also reinforced in both directions with knee braces that were fastened to the beams and columns with 1⁄2-inch-diameter HDG all-thread rod.

The frame was also reinforced in both directions with knee braces that were fastened to the beams and columns with 1⁄2-inch-diameter HDG all-thread rod

There are numerous other articles on the web using diagonal braces on centre columns:

Anyway, my report is gone and nothing was mentioned about the diagonal knee braces.