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is that weight significantly more than other top tub makers?
Now you got me wondering so I looked at a few well known large non lounge spas out there (and I even threw in a Cal so you wouldn't feel left). Arctic Tundra: 92¾" x 92¾" x 38¾", [size=9]didn't see weight spec but someone said [/size]1000 lbsArtesian Piper Glen: 92" x 92" x 37", 968 lbsCal Avalon 8-857B: 93" x 93" x 39½", 900 lbsCaldera Niagara: 89" x 89" x 38", 920 lbsHot Springs Grandee: 100" x 91" x 38", 1008 lbsJacuzzi J470: 91 in x 91 in x 39 in, 930 lbsSundance Optima: 89" x 89" x 37.5", 855 lbsOverall it seems most premium spas have a similar size to weight ratio.
exact weight of the Tundra
I'm sure that was just a joke, but I will answer it anyways. Arctic uses a perimeter heat lock method for insulation. In that picture, one of the access doors was removed so you can see the inside. On the door, there is 4-5 inches of insulation. as well as all on the floor, and all the walls and corners of the spa. Looks something like this: