Standard Hot Tub Sizes: What Size Hot Tub Do I Need for My Space?
Hot tubs aren’t one size fits all
Highlights
Standard hot tub sizes range from 5 to 9 feet long by 7 to 9 feet wide.
Most hot tubs are between 33 and 38.5 inches tall, though it varies.
The number of people most hot tubs can seat is between two and seven, depending on the shape.
You have many shapes to choose from, including round, square, clover, and hexagonal.
Price depends on the size and style, but most models cost between $2,000 and $11,000.
A hot tub is a great way to relax, but stressing over what size will fit in your yard isn’t. The good news is that hot tub sizes are relatively standard unless you go for a custom build. Typically, you can choose a hot tub based on the number of people you want to seat. There’s a range of sizes for yards big and small. This hot tub dimensions guide will help you pick the best model for your space.
What Are Standard Hot Tub Sizes?
There are three standard hot tub size categories. You’ll find various lengths, widths, and heights within these categories, depending on the manufacturer and the shape. In general, you can expect the following seating capacity:
Small: 2 to 4 people
Medium: 5 to 6 people
Large: 7 or more people
Some manufacturers also make an extra large hot tub that spans up to 11 feet in width by 11 feet in length, while other homeowners go for even larger plunge pools. Plunge pools can cost considerably more than a hot tub, but you can find sizes spanning upwards of 13 feet in length.
Hot Tub Size by Shape
The typical hot tub costs $2,000 to $11,000, and you’ll pay more for larger sizes and unique shapes. Most round hot tubs range from 72 to 86 inches (about 6 to 7 feet) in diameter, while rectangular hot tubs are up to 110 inches (9 feet) wide.
Keep in mind that shape impacts seating. You can fit four people in a 72-inch-by-72-inch square hot tub, but only two to three people in a triangular hot tub of the same dimensions.
| Hot Tub Shape | Seating Capacity | Common Dimensions |
|---|---|---|
| Rounded | 3–7 people | 72”–90” (diameter) |
| Oval | 2–6 people | 72”–90” (diameter) |
| Square | 4–10 people | 72”–110” (length) x 72”–110” (width) |
| Rectangular | 4–10 people | 72”–110” (length) x 72”–110” (width) |
| Corner | 2–3 people | Up to 72” in length or width |
| Rounded Triangle | 2–3 people | Up to 72” in length or width |
| Clover | 4 people | Up to 72” in length or width |
| Hexagonal | 6-10 people | 78”–96” (diameter) |
| Octagonal | 7 people | 78”–96” (diameter) |
Rounded
Round is one of the most popular shapes for hot tubs or Jacuzzis. They’re especially great for small spaces that need a compact unit. Most round tubs hold between three and seven people and range from 72 inches to 90 inches in diameter. You’ll find a range of types, from in-ground models to inflatable.
Oval
Oval hot tubs are the middle ground between a rectangular and rounded tub. Cutting out the corners saves space but means limited capacity compared to square or rectangular models. Sizes range from intimate two-person models to larger tubs that fit a family of six. Commonly, you’ll find diameters between 72 inches and 90 inches.
Square
Square hot tubs are popular because you can tuck them seamlessly into hardscaping like the corner of a porch or patio. Most square models hold two to 10 people. Expect dimensions anywhere from 72 inches to 110 inches in width and length.
Rectangular
Rectangular hot tubs are among the most spacious and versatile. You can opt for a swim spa that fits one to four people or a model with molded seats that partially recline. Some homeowners choose a deep model for more pool water volume—these are usually 38.5 inches high instead of 35).
Most homeowners choose a rectangular hot tub that holds four to 10 people with dimensions anywhere from 72 inches to 110 inches in width and length. This type of in-ground hot tub costs more than a square or oval due to its size.
Corner
If you want to reap the benefits of a hot tub but don’t have the space, choose a corner unit. This is the most compact shape on the market. These hot tubs only hold two to three people, but you can tuck them into the corner of a patio or in-ground pool deck without losing much space. The most common corner tubs are up to 72 inches on either side.
Rounded Triangle
Rounded triangle hot tubs are similar to corner tubs. They’re triangular but with rounded corners. These tubs span up to 72 inches on either side and hold two to three people.
Clover
Prefabricated clover-shaped hot tubs hold four people, one in each clover petal. Most are up to 72 inches long and wide, but you will find larger custom versions at resorts and spas. This type of hot tub functions like a plunge pool and can hold more than a dozen people as each petal acts like its own hot tub.
Hexagonal
Hexagonal hot tubs are a great option for a compact spa that maximizes seating. Most of these units hold between five and 10 people. Expect hot tub measurements to range from 78 to 96 inches across, though some may be more oval-shaped and others more circular.
Octagonal
Octagonal hot tubs are similar in size to hexagonal tubs, though they have more sides, which lend themselves to additional jets. Depending on the size, these units can comfortably seat five to 11 people. Measurements range from 78 to 96 inches in diameter, and may be oval-shaped or circular.
How to Measure Your Space for the Right Hot Tub Size
Measuring your space for a hot tub is not just about what will fit. You must also leave enough room around the tub so pool electricians and technicians can perform repairs and maintenance.
Most manufacturers recommend anywhere from 12 to 36 inches of clearance around each side of your hot tub. That means a tub that’s 72 inches wide actually needs 84 to 108 inches of space.
You should also check the owner’s manual for your hot tub cover. Depending on their mechanism, hot tub covers require a specific amount of space to open and fold away, sometimes 12 inches or more.
Here are some general guidelines:
Keep your tub at least 5 feet away from your home to prevent flooding
Keep your tub at least 16 feet from overhead power lines to prevent risk of electrocution
Keep 12 to 36 inches of clearance around each side of your hot tub
Make sure there’s enough room to open and store your hot tub cover
Make sure the space is level (if not, you can hire someone to level the area for you)
Tips for Choosing the Best Hot Tub Size
To find the right hot tub size for your home, you’ll have to think about a few different factors. You may be willing to up your budget for a larger tub that can fit more people, but it may not make sense if you have a small yard. Here’s what you should consider:
Budget: Smaller hot tubs cost less to install and run.
Number of people: Most people choose a small or medium-sized hot tub that can hold four to six people, but you may want a larger hot tub if you throw lots of parties or a smaller one if you’re trying to conserve space.
Size of your yard: Smaller yards work best with smaller tubs.
Location: If you’re putting your hot tub on a deck, you will likely need to add reinforcements, impacting the budget.
Shape: Certain shapes may fit better in your yard. For example, a round or corner unit can conserve space in a small yard. You also may want to install a hot tub that matches the look of your existing pool.
Utility: Certain features like a specific jet structure or swimming current may limit your size options.
What to Do If You Have the Wrong Size
The best way to avoid a sizing issue is to work with a hot tub installer near you. They can measure your space and help you pick the right model—but what happens if you’ve already chosen the wrong one?
Some (but not most) hot tub retailers allow returns. Typically, you’re on the hook for the return freight cost and have to return your hot tub within the allotted time period (usually around 30 days). Check the terms before you buy.
If your hot tub is not returnable, you have three options: you can resell it, trade it in to a dealer, or make it work in your existing space. Sometimes, a fix is as simple as removing a couple shrubs, pouring a little concrete, or adding a few more pavers to extend your patio. Other times, you may have to eat the cost of hot tub removal.