A hot tub on a deck is entirely possible, and it is possible your deck is already equipped to handle one. A deck designed to hold at least 100 pounds per square foot will support nearly any type of hot tub.

How do I know if my deck will hold a hot tub?

In general, most decks can withstand 100 lbs per square foot. So if a hot tub like the one in the example is under that weight, the average deck should be able to support it.

Do I need to reinforce my deck for a hot tub?





When you add a spa or hot tub to a deck you are adding a lot of weight. This “How to Guide” is to show one possibility of reinforcing your deck so that it can properly support the added weight from your spa or hot tub. Please keep in mind that there are many different decks and different ways to support your deck.

How much weight will my deck hold?

In short there’s no one right answer to “how much can my deck hold?” However, one rule of thumb to keep in mind while answering the question is that the answer commonly is that if a deck is properly designed, it’s built to hold 50 lbs. per square foot. It’s possible that it could hold much more weight than 50 lbs.

How do you strengthen a deck for a hot tub?


Quote from Youtube video: Okay so reinforcing the deck is very very simple basically all you going to do is just get you a good flat spot under it put your pylons. Down. You're going to what. We do is hang the joist.

How much weight can a 12×12 deck hold?

A 12’x12′ (144sq’) deck properly supported can hold 5 760lbs on it. you build. All floating decks, in fact, all decks built to code, can support no less than 40 lbs per square foot of deck.

How do you reinforce an existing deck?





Reinforcing the deck requires solidifying existing columns or adding columns while installing additional support beams along the underside of the deck. The project is two stages but can be accomplished in one to two days with the proper tools and supplies.

Will joist hangers support a hot tub?

Don’t use a ledger board or joist hangers when building a hot tub deck. Super-size to 2×10 joists installed on top of the beams and spaced at 12”o.c., 8”o.c. is preferable, though. Use brackets to maintain location on the beam and intermediate blocking for spacing and to prevent twisting.

Can composite decking hold a hot tub?

Hot tubs and composite decking (if done correctly) make the perfect match and together, are an excellent opportunity to upgrade your outdoor space. The contemporary look and finish, and high performance of composite decking offers the ideal solution that can complement a hot-tub installation perfectly.

Can you put a hot tub on a raised deck?

What about an elevated deck? Yes and yes. Installing a hot tub on your deck will help you get the most out of your investment. The closer the hot tub is to your house, the more likely you are to use it.

How do you attach a support to a deck for a hot tub?



Hot Tub Framing on a Deck

  1. First, add additional fasteners to the ledger board to add extra security from the deck to the house.
  2. Remove any blocks underneath the deck.
  3. Extra joists are going to be a significant part of the reinforcement of the structure. …
  4. Fasten extra joist hangers on the house side of the deck.

How much weight can a elevated deck hold?

If your deck is built to code, then it is designed to hold a minimum of 50 pounds per square foot, of which ⅘ of that total is the “live” load. Therefore, a deck of 120 square feet multiplied by 50 shows that your deck can hold 6000 pounds, including the structure.

Can my floor support a hot tub?

If you consider that spa measures approximately 60 square feet, then the floor must be able to support at least 100 pounds per square foot. Floors in most homes can handle 125 to 300 pounds psf.

Can you put a hot tub on a Trex deck?



The good news is the composite decking is multiple times stronger than is required to support the hot tub. The weight of the hot tub will not break the composite decking when the weight is evenly distributed.



Will Composite Decking Break Under a Hot Tub?

Composite Decking Kn rating Lbs per sqft
Trex Transcend 3.88 872

Can you put a hot tub on a porch?

HOT TUB PLACEMENT CONSIDERATIONS. Your hot tub can be placed just about anywhere—outdoors or even indoors when practical. You can put it on a deck, patio, rooftop entertaining area, or even under a gazebo.

How much support does a hot tub need?

A deck designed to hold at least 100 pounds per square foot will support nearly any type of hot tub.

Can a concrete patio support a hot tub?

Usually a concrete slab made to building code is suitable to hold a hot tub. However, many patios and other concrete slabs are pitched for drainage, which may make an unsuitable base for your hot tub. Second, your existing concrete slab must be in good condition.

Can you put hot tub on gravel base?



Short answer is: Yes. Gravel is an excellent base for hot tubs because it allows for drainage of water while being sturdy enough to handle the high weight of a hot tub.