Here’s how the math works out: 1 empty hot tub = around 800 pounds; 1 gallon of water = just over 8 pounds; 1 full hot tub = anywhere from 200 to 500 gallons; 1 person = average of 200 pounds The main area is finished in redwood and light brown and the pergola is made in natural cedar finish. Obviously you can tweak it for your own design, but our free deck … The hot tub place said I should build some type of wooden frame into the gravel so the tub … You essentially need to double the supports of the deck for it to hold a hot tub. Never place a hot tub on an existing deck that wasn't designed to support the massive loads. An ideal location for your hot tub is a flat sturdy surface. My plan was to level the area and install 4-6” of pea gravel. Framing a deck for hot tub installation diy plans hot tub deck support supports building your deck for a hot tub decks how to determine if a deck can support hot tub do it framing a deck for hot tub installation diy plans platform deck with material list step by instructions hot. But the surrounding deck was fairly high off the ground so the hot tub had to be supported by an elevated substructure. Even inflatable hot tubs can still weigh up to 3,700 lbs full of water and people. To decrease the number of footings, but likely increase the cost of construction, you can instead use an engineered beam. Yes, any kind of hot tub, including inflatable hot tubs, can go on a wooden deck. This deck hot tub looks more distinctive with its multicolor finish. Can A Deck Support An Inflatable Hot Tub? Especially if you want to build it yourself. It's ideal. It’s always recommended to check with the hot tub’s manufacturer for specific weight information first. This will involve several load cases. .. to structural support, the safest bet is a solid base independent of the deck. Water is very heavy and decks are elevated. A hot tub deck must be able to support the weight of a hot tub, which is a considerably large load. Now that you know how you can tell if you deck can support a hot tub. However, if the deck is more than 2 feet off the ground, it will likely need additional support to hold the weight. Build the permanent frame for the deck out of 2x6 pressure-treated beams (Images 1 and 2). I've been asked to build a 20' x 20' deck that will have a 4 to 6 person hot tub resting on top. That being said, it is generally understood that decks situated just a few feet above the ground can hold roughly 100 pounds per square foot. It is usually only necessary to add extra structural support to the area under the hot tub or spa, not the entire deck. Before building a hot tub deck, however, the builder must consider a few factors: first, do I need a building permit? The hot tub will add about 100 PSF load to the normal live and dead loads. Active 1 year, 3 months ago. This is our full set of plans for a deck with a hot tub. Greg's hot tub was 8'x8'. (average 150 lbs). If you’ve been using a bathtub on the deck and want a hot tub on a deck, you’re in the right place. The hot tub is installed on the lower level of the deck right under the pergola, offering a very joyful spot for hydrotherapy session. But let's take into consideration the reality of it all. The second is to build a deck strong enough to support the weight of a hot tub filled with water and people enjoying themselves. The Rule of Thumb. Step 1 Consult the manufacturer's documentation that came with the hot tub, or consult the supplier if you're going to build the deck before delivery, to learn the hot tub's maximum in-use weight. You never know if they might decide to position the tub differently than they indicated to you. So if a hot tub like the one in the example is under that weight, the average deck should be able to support it. Not all decks can support a hot tub! Most decks that are two feet above ground level can easily bear up to 100 pounds per square foot, so supporting an empty inflatable hot tub would be nothing. Step 3 – Stake Out. The average 8' x 8' hot tub weighs over 5,000 lbs when filled with water and people. I’m to build a raised deck frame which will support a small (1.8m Lazy Spa hot tub). I'm thinking of using 2x12 joists 12" on center. Viewed 62 times 0. The hot tub is placed on the ground and the deck is built around it. Adding a hot tub to your deck, however, requires careful planning. Or, if your deck has many angles, additional footings are necessary. 4 months ago more space larger lumber and more of it all walk around the outside of hot... 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