[Shop-talk] Footings and piers for decks

[Jim Franklin]

Yep, 18" is spot on per the beam and joist spacing, but the pre-cast footer only comes in 22". 

Getting the concrete to the location will be difficult. The house is up a 100' inclined driveway that won't support a full sized truck, and the then another 100' around back to the site. Even a pumper would need a lot of hose. Are there smaller/lighter site-mix trucks now? I suppose they could pump it to the top of the driveway and wheelbarrow it around back...

> On Apr 16, 2020, at 10:15 PM, PJ McGarvey <pj_mcgarvey at hotmail.com> wrote:
> 
> 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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