Hot Tub Forum
Original => Hot Tub Forum => Topic started by: Zac on June 07, 2020, 06:33:14 pm
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Pouring a 100" by 100" concrete pad for a 94"by94" hot tub. When filled with water the brochure says it will weigh roughly 4700lbs. I figure call it 6000lbs with people (we won't ever have more than that in it).
I want to ensure it's done right. How thick should I ensure the concrete is below it to avoid cracking? Is there any value in letting the concrete sit for a period of time before putting the tub on it? How long? Thanks!
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I just went through this and everything says 6†thick concrete with 4-6†of stone below that. How long to wait is weird. I’ve had some concrete specialists say a couple days and some say at least 30 days. No idea why the answer varied so much.
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I'd frame it up with 2" x 6" to give you around 5.5" of concrete give or take and make sure it's reinforced with re bar and/or wire mesh or both. A full 7 day cure time is enough and usually what's recommended in my experience. Good Luck!