[Shop-talk] Footings and piers for decks

[PJ McGarvey]

I doubt you'll need more than 18" diameter footings for a deck.

In any case, I would pay a bit more for concrete delivery. I did this in November for a 16'x16' screened porch I'm almost finished with. For that diameter and depth, that's alot of concrete to mix correctly. In an hour you can have it delivered, poured, and save alot of hassle.

________________________________
From: Shop-talk <shop-talk-bounces at autox.team.net> on behalf of Pat Horne via Shop-talk <shop-talk at autox.team.net>
Sent: Thursday, April 16, 2020 7:14 PM
To: Jim Franklin <jamesf at groupwbench.org>
Cc: Shop-talk <shop-talk at autox.team.net>
Subject: Re: [Shop-talk] Footings and piers for decks

24” diameter hole is pretty large. I had 24” piers drilled by a company. They brought a large drill truck. I had 3 piers drilled 25’ deep, including bell bottoms. Cost was $800. Only reason I brought this up is it might not be that much over the cost of the skid steer to have someone else drill them.

Peace,
Pat

Pat Horne
We support Habitat for Humanity


> On Apr 16, 2020, at 1:13 PM, Jim Franklin via Shop-talk <shop-talk at autox.team.net> wrote:
>

Having decided it's better to build a nice ornate deck out of PT than a small simple deck of of fancy materials, I'm looking at the foundation. Frost line here is 48" and I need 18" footings. I have found 3 options and I'm wondering if I missed anything:

1. Traditional concrete with forms and sonotubes
2. Pre-cast footings (22", 100 lbs)  and stackable piers (EZ-Tube)
3. Helical piles

I haven't heard back from the town on that last one and they're the priciest at $275 per. The pre-cast are $150 per. Concrete will require hauling about 45,000 bags into the backyard.

I'm leaning towards #2 . I don't own any yard equipment but I can rent a skid steer with auger, though not a 24" auger I don't think.

thanks,
jim
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