Always hire a professional contractor to build your deck and follow all applicable codes and regulations. That’s why I always recommend consulting a structural engineer before placing a hot tub on your deck. So in this article, we’re exploring how to safely put a hot tub on an existing deck. Let’s also assume we’re NOT talking about in-ground hot tubs. You essentially need to double the supports of the deck for it to hold a hot tub. You need to consider everything from ensuring adequate structural support to determining the optimal location for the tub to understanding electrical requirements. If your deck was designed to meet current codes, it would have been built to withstand a 40 lbs per square foot (psf) live load. If 7 people sit in my hot tub that is an additional 1050 lbs. Even so, you’ll need to be certain that the location you planned to place the hot tub then is the same spot you want it now. This is known as the “live load” and is measured as pounds per square inch. (8.35 lbs / gallon). Middle Class Dad is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. In a recent article, I break down exactly what the expected lifespan is of in-ground, above-ground, and even inflatable hot tubs. What are your likes and dislikes? Now Trex isn’t stronger than traditional wood, so to calculate whether or not you need additional support under your deck to hold the weight of a hot tub, follow my calculations above. With the calculations we just did, your deck might be able to support that. Also, putting extra 4x4 posts under each corner of the hot tub… Not... Are Sunrise Hot Tubs Good? While your deck may only last 15 years, many wonder just how many years a hot tub will last. Decks built ground level up to 2 feet off the ground can support up to 100 lbs per square foot; sufficient for most hot tubs. The answer for hot tub people is both; sitting in a hot tub while out on your deck. Can Your Deck Support a Hot Tub? Note: The supporting structure of the deck can most likely be modified to take the additional weight of the hot tub or spa. But decks 2 feet or higher will need added support. Your deck needs to be not just a temporary weight lifter, but a day-in, day-out weight holder. That IS enough to hold most small to medium-sized hot tubs with water and people. 3. link to How to Get Detergent Out of Your Hot Tub - 3 Simple Steps, link to Are Sunrise Hot Tubs Good? For decks that are high off the ground and/or need additional support, here is a diagram showing you how my deck and hot tub are arranged with the additional support posts that were added under the hot tub area. Of course, it’s always a good idea to check with your manufacturer about your specific model. This is our full set of plans for a deck with a hot tub. A solid, flat surface is required for a hot tub. So just know that a normal deck raised 2 or more feet off the ground, which might have support posts every 6 feet, won’t be enough to hold the weight of a hot tub. I am building a 10'X11' deck to support a hot tub. If you bought the house with a deck already in place, unless you have a hot tub on it already, it’s safest to assume that it was not built to support a hot tub. Posts ideally would be placed in poured concrete and run at least 1 foot below the frost line. (average 150 lbs). Decks built ground level up to 2 feet off the ground can support up to 100 lbs per square foot; sufficient for most hot tubs. You’ve increased your load to more like 125 psf -- three times what your deck should be able to support -- and it’s all concentrated on one section of your deck frame. Sunrise Spas aren't the best-known brand of hot tub out there. We have collected some great tips and advice from deckmagazine.com and other online sources. You’re risking heavy property damage, and people could be seriously injured. Check out our mountain hot tub! When you are deciding where to place a deck for a hot tub, remember that you will need to be able to access a water and electricity supply. My spa started off at 600 lbs. Probably! The hot tub deck must therefore be carefully constructed and supported properly by blocks and beams secured in the ground. I appreciate your info. We can help! Obviously you can tweak it for your own design, but our free deck … That’s a fancy way of basically saying fake wood or plastic decking. The weight of that hot tub just ballooned to 6,000 lbs. But decks 2 feet or higher will need added support. Here in beautiful Northeast Ohio, we’re lucky to experience four dramatically different seasons throughout the year, and I want you to be able to enjoy each one of them from the comfort of your own backyard. This means that if you had a 100 square foot deck (10′ x 10′), you’d be able to hold 5,000 pounds above it (assuming the weight was evenly distributed). *Please note that I am not liable for quotes, products, claims or any work performed through BuyerZone or its suppliers. Deck reinforced. I'm thinking of using 2x12 joists 12" on center. To safely support a hot tub, a deck needs to handle upwards of 150 pounds per square foot. Hot tubs and spas require more support per square foot than an empty deck, or one with only benches and other furniture. The wood deck should be flush with the top of the tub. Middle Class Dad is compensated for referring traffic and business to these companies, but in no way increases the cost to you if you opt to make a purchase from my links. Carefully Consider the Gap Between the Deck Boards. Not sure what the scope is? You just purchased an average size hot tub -- typically 7’x7’ -- and you want to put it on your 49 square foot (sq ft) deck. Where it meets into the house, run additional posts from the decking to the ground, flush with the house, on both corners of where the hot tub will sit. Every day, that weight can potentially weaken the frame of your standard-code deck. 2. Bear in mind, this is what was done at my house (by the previous owners). You can sit, relax and watch the gorgeous scenery from our My Mountain Cabin deck! But the surrounding deck was fairly high off the ground so the hot tub had to be supported by an elevated substructure. Complete Sunrise Hot Tub Review. 15110 Foltz Pkwy Unit 108 It is usually only necessary to add extra structural support to the area under the hot tub or spa, not the entire deck. Unless your deck was specifically built to support a hot tub, probably not. The deck will be free standing - not attached to the house. After all, hot tubs, full of water, and people can easily weigh over 5,000 lbs. So as you can see, the largest hot tub is just a hair over 100 lbs per square foot, and that’s if 8 people are in it. Before building a hot tub deck, however, the builder must consider a few factors: first, do I need a building permit? You should consult a general contractor and check with your city planning office for guidance and permit info. With the calculations we just did, your deck might be able to support that. #vacationrental #cabinrental #hottub pic.twitter.com/rTpp9Wq0w0, — My Mountain Rendezview (@MRendezview) August 21, 2020. So now you have this tub that weighs 6,000 lbs … You could hold that, but it’s pretty heavy and you wouldn’t want to hold it for long. Now fill your hot tub with water and people. This hides the bulk of the hot tub body and hides its real size. I founded Woodland Deck in 2000 to create decks and outdoor spaces to be enjoyed for generations. Naturally, you want to inspect your deck to ensure it can hold a fair amount of weight. 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