Building deck around AGP

[MrBeetle]

So, it’s deck time…

I’m looking to dig 7 of my post holes around the pool. 12” diameter, 44” deep. The edge of the hole is about 14” from the pool.
Some holes are spaced out, others have only 6-10” or so of soil between them.

Am I asking for trouble that close to the wall? Or should I be safe at that distance. I obviously don’t want a catastrophic collapse of the ground below. For what it’s worth, it’s clay under me all the way to figi…

 

[MrBeetle]

And, to give off some context... Here is what I'm doing! (Engineer by trade... Not civil, but I know my way around autocad...) Moistuertek vision decking

 

[CJadamec]

You should be fine. Dig your holes carefully and compact your backfill. One hole and post at a time while working next to the pool. Don't open a hole or leave a hole open if there risk of rain. Don't leave the hole open longer than needed.

Looks like a nice deck.

 

[MrBeetle]

You should be fine. Dig your holes carefully and compact your backfill. One hole and post at a time while working next to the pool. Don't open a hole or leave a hole open if there risk of rain. Don't leave the hole open longer than needed.

Looks like a nice deck.

Can’t… needs to be inspected. So, all holes dug before the inspector comes out.

 

[CJadamec]

Talk to your inspector and explain your concern. They will likely work with you. Offer to have every other hole dug except for the ones next to the pool.

 

[CJadamec]

You could probably optimize your post layout and eliminate a couple of those close holes by using longe r beams. If it were me I would only have 3 posts next to the pool. Maybe 4.

Your spans aren't that long for a double 2x10 beam.

 

[MrBeetle]

You could probably optimize your post layout and eliminate a couple of those close holes by using longe r beams. If it were me I would only have 3 posts next to the pool. Maybe 4.

Your spans aren't that long for a double 2x10 beam.

That was my thought as well - but I had issue with the cantilever length… I’m within a few inches of what is allowed with the 45 joists. Basically, I have a 6.5’ span (giving credit for the cantilever past the beam), on the right side so the max I can go is 1.5ft. Removing posts essentially pulls the ends of the beams out, which requires more cantilever length than I have.

With my lousy clay, I also needed that many posts to hit my 12” footing size. If I reduced them (and perhaps joined the close posts into a single footing) I would require 16” ones, which would also get my holes closer to the pool

we liked the look of the not-square edges more than a box…

 

[CJadamec]

My deck was never inspected so I was a little generous with some of my cantilevers. I also have very rocky soil so I wasn't too worried about footings.

Try to work with your inspector. I'm sure glad I'm not the one digging all those frost depth post holes.

I hear you on the not square deck. I molded mine to fit the land and pool.