Lawrence Lin Posted March 12, 2017 Report Share Posted March 12, 2017 I have a Maxx hot top seating 5-6 located at my upper deck. I would like to raise the tub for 8 inches for a better view. Is it strong enough to use 2 8x8x16 concrete blocks at the bottom of 9 evenly distributed locations to raise (total of 18 concrete blocks). Please advise. Thanks! Quote Link to comment Share on other sites More sharing options...
Lawrence Lin Posted March 25, 2017 Author Report Share Posted March 25, 2017 Would it be better if I use railroad ties? Quote Link to comment Share on other sites More sharing options...
Jersey Hot Tub Repair Posted March 25, 2017 Report Share Posted March 25, 2017 Quoting from "Deck Builder" magazine's website: A typical 7 1/2-foot by 7 1/2-foot hot tub, for example, with a dry weight of 855 pounds can hold 420 gallons of water and six to seven people. That much water weighs about 3,500 pounds (1 gallon weighs around 8.3 pounds, depending on its temperature), while seven people with an average weight of 185 pounds have a combined weight of 1,295 pounds. The 56-square-foot tub filled with water and people would therefore have a total weight of 5,655 pounds, so the framing must be able to support a design load of at least 101 pounds per square foot (5,655 ÷ 56 = 100.98). http://www.deckmagazine.com/outdoor-living/structures-features/successful-hot-tub-planning_o Quote Link to comment Share on other sites More sharing options...
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