If the added load, in this case the hot tub, was supported on blocks or four legs that would concentrate the load in a very small area, then you would start by checking the deck boards to see if they could carry the concentrated load. This is our full set of plans for a deck with a hot tub. See all of our free deck plans here. It is also to speak with a renovation expert about the status of your deck before starting any projects on your own. I need to elevate a hot tub 3'6" on a 8'x8' platform. 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 An ideal location for your hot tub is a flat sturdy surface. Step 3 – Stake Out. 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. You can use the plan below to construct a hot tub deck in one afternoon. So you must be sure that the deck is able to support the weight of a full tub. This includes the wind patterns in the area, proximity to leaf shedding trees and bushes, the amount of sunshine received, space for the hot tub cover and accessibility and privacy issues. With the calculations we just did, your deck might be able to support that. Pressure-treated wood is critical since the deck will be exposed to rain and the water from the hot tub, and pressure-treated lumber resists damage and deterioration from exposure to water or moisture. Of course, this isn’t something you’ll want to guesstimate. But the surrounding deck was fairly high off the ground so the hot tub had to be supported by an elevated substructure. I am looking to add a 2 person hot tub on my deck. This hides the bulk of the hot tub body and hides its real size. Measure a square using stakes and string on the ground. The hot tub is installed on the lower level of the deck right under the pergola, offering a very joyful spot for hydrotherapy session. The spa filled has 320 gallons or 2672 lbs. A new platform with large footings at least 22" in diameter should be installed below each corner of the tub … Not all decks can support a hot tub! You will need larger lumber and more of it. Yes, any kind of hot tub, including inflatable hot tubs, can go on a wooden deck. Never place a hot tub on an existing deck that wasn't designed to support the massive loads. To safely support a hot tub, a deck needs to handle upwards of 150 pounds per square foot. This deck hot tub looks more distinctive with its multicolor finish. I’m to build a raised deck frame which will support a small (1.8m Lazy Spa hot tub). A hot tub on the deck. 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. The majority of hot tubs need approximately 4” worth of concrete slab. Mixing a deck and a hot tub can truly create some amazing places to hang out and soak but what does it take for a deck to support a hot tub? 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. We have collected some great tips and advice from deckmagazine.com and other online sources. The hot tub is placed on the ground and the deck is built around it. If you’re looking at how to determine if a deck can support a hot tub, this article is for you. (8.35 lbs / gallon). I want to make sure that this deck has plenty of support. The wood deck should be flush with the top of the tub. Note: The supporting structure of the deck can most likely be modified to take the additional weight of the hot tub or spa. If 7 people sit in my hot tub that is an additional 1050 lbs. Even inflatable hot tubs can still weigh up to 3,700 lbs full of water and people. Next, drop your hot tub into the deck. That said, it’s important to seek the help of an expert when it comes to installing a hot tub on a deck. Obviously you can tweak it for your own design, but our free deck … The hot tub will add about 100 PSF load to the normal live and dead loads. This lets you walk around the outside of the hot tub and create the illusion of more space. Now multiply that 40 lbs psf live load by 49 sq ft of deck and you get a total of 1,960 lbs -- that’s what the average deck built to code can theoretically support. Lay out a perfect 8 foot square at the location you plan to build the deck. It is usually only necessary to add extra structural support to the area under the hot tub or spa, not the entire deck. If you’ve been using a bathtub on the deck and want a hot tub on a deck, you’re in the right place. That is a total of 4,322 lbs. You need to consider everything from ensuring adequate structural support to determining the optimal location for the tub to understanding electrical requirements. Active 1 year, 3 months ago. This will involve several load cases. Ask Question Asked 1 year, 4 months ago. I'm thinking of using 2x12 joists 12" on center. It is always wise to contact a professional to get an accurate estimate of what your deck can safely handle. Now that you know how you can tell if you deck can support a hot tub. I had in mind that I would use 4x2 CLS joists @ the 2.4m spans (300 centres) with around 20 4x4 treated posts concreted in and in particular around the area the tub would reside. However, if your deck will include a hot tub or roof, you must support that weight with additional footings. So if a hot tub like the one in the example is under that weight, the average deck should be able to support it. A hot tub deck must be able to support the weight of a hot tub, which is a considerably large load. You never know if they might decide to position the tub differently than they indicated to you. What a relaxing scene. I've done a number of hot tub decks and have always overbuilt just for the peace of mind. Or, if your deck has many angles, additional footings are necessary. I am building a 10'X11' deck to support a hot tub. Hot tub requires deck load designed at 150psf. If you are choosing to build a deck for your hot tub you can pour some concrete at the deck footing for proper support. My deck is made of all 2x6 material 12" on center floor joist, with 4x4 post and a 2x12 support … The hot tub place said I should build some type of wooden frame into the gravel so the tub … The hot tub deck must therefore be carefully constructed and supported properly by blocks and beams secured in the ground. 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. Water is very heavy and decks are elevated. You essentially need to double the supports of the deck for it to hold a hot tub. If the deck is too high to support the tub with a slab, analyze the deck framing with the Hot Tub in the worst places possible for each member. Structural Support.Hot tubs must be placed on a flat, level surface, such as a concrete slab or a deck, without any shims.Beyond that, many structural and . The answer for hot tub people is both; sitting in a hot tub while out on your deck. Wood Deck span/support for hot tub load Wood Deck span/support for hot tub load tctim (Computer) (OP) 18 Oct 03 13:37. A concrete slab, for example, is often used. Especially if you want to build it yourself. Hot Tub Buying Guide Support your hot tub on a deck. As hot tubs have become increasingly popular to install in gardens across the country, decking has become the platform of choice. .. to structural support, the safest bet is a solid base independent of the deck. I've been asked to build a 20' x 20' deck that will have a 4 to 6 person hot tub resting on top. Also, putting extra 4x4 posts under each corner of the hot tub… Can A Deck Support An Inflatable Hot Tub? Accordingly, the deck you build needs to be reinforced. A deck built to support a hot tub must, therefore, be sturdy and well-braced. A very common size but he wanted to design his deck so that the top of the hot tub sat flush with the deck surface. A hot tub is full of water. Adding a hot tub to your deck, however, requires careful planning. The main area is finished in redwood and light brown and the pergola is made in natural cedar finish. I would obviously include many noggins. I appreciate your info. What spacing would I need on 4x4's 44" in concrete (frost requirement) if using 2x8's 16" o/c and pressure treated 1x4 decking? The hot tub in your photo will have an impact on the section of deck depicted in the diagram. Before building a hot tub deck, however, the builder must consider a few factors: first, do I need a building permit? Do not forget that a deck for a hot tub must not only support the tub itself, but also the water, and the weight of the people who are bathing in it. Browse 354 Hot Tub Deck on Houzz Whether you want inspiration for planning hot tub deck or are building designer hot tub deck from scratch, Houzz has 354 pictures from the best designers, decorators, and architects in the country, including TC Home Services and Litzler Studios. The average 8' x 8' hot tub weighs over 5,000 lbs when filled with water and people. My plan was to level the area and install 4-6” of pea gravel. The Rule of Thumb. My spa started off at 600 lbs. Install a concrete slab for the hot tub platform. However, if the deck is more than 2 feet off the ground, it will likely need additional support to hold the weight. But let's take into consideration the reality of it all. Raised Deck Hot Tub Have your deck design wrap entirely around the hot tub. A 7’x7’ hot tub can be somewhere in the range of 1,000 lbs empty. The second is to build a deck strong enough to support the weight of a hot tub filled with water and people enjoying themselves. Download a hot tub buyer’s guide to learn more about our models. My engineer informed me that my current deck needed more support even before adding a spa or hot tub. The property is sloped so closest to the house, the deck will be only 12" high … Viewed 62 times 0. It is usually only necessary to add extra structural support to the area under the hot tub or spa, not the entire deck. The deck will be free standing - not attached to the house. Note: The supporting structure of the deck can most likely be modified to take the additional weight of the hot tub or spa. Greg's hot tub was 8'x8'. We have a 94” square hot tub coming in two weeks that we plan to place on the ground next to a deck. If the tub is to be set in the deck, build a four post sub deck below the tub area using oversized footings, 6" x 6" posts, notched for a double band and through bolted then double up 2" x 8"s on 12" centers. But the fact is that your average deck isn’t built to support a hot tub full of people and water. It's ideal. Deck support for a 2 man hot tub. To decrease the number of footings, but likely increase the cost of construction, you can instead use an engineered beam. This top tips for building hot tub decks post is from the experts at Real Cedar.com,. Build the permanent frame for the deck out of 2x6 pressure-treated beams (Images 1 and 2). (average 150 lbs). Dimensions of deck are 3m x2.4m. Hot tub decking is exactly the same as all other decking – the difference is in the construction of the timber deck. 2. It’s always recommended to check with the hot tub’s manufacturer for specific weight information first.
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