9 Inground Pool Shapes to Consider for Your Home

Pick the perfect pool shape to suit your yard

Father and son playing at the swimming pool
Photo: kupicoo / E+ / Getty Images
Father and son playing at the swimming pool
Photo: kupicoo / E+ / Getty Images
Highlights
  • Inground pools have a range of shapes, from rectangular to freeform.

  • Materials like concrete and vinyl have more shape options than fiberglass.

  • Round or rectangular pools are ideal for smaller spaces.

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Adding a pool to your backyard means you can enjoy your property to the fullest every summer for years to come. When it comes to inground pools, though, the variety of choices for pool shapes can be overwhelming—how can you determine which is the best choice? Our guide to common inground pool shapes will walk you through each of the most common pool shapes and help you decide which is right for your home.

Common Pool Materials

Materials will actually dictate your pool’s shape—but it matters a bit more for inground vs. above-ground pools. Certain inground pool materials have greater limitations:

  • Concrete: Concrete inground pools tend to work best with custom pool shapes. Your contractor can pour this material into virtually any design and add a range of pool finish materials like tile, plaster, or stone aggregate.

  • Vinyl: Vinyl liners come in a variety of inground pool shapes and sizes. You’ll need to make sure you purchase the correct shape and size for your pool idea, so you might be slightly limited depending on the brand.

  • Fiberglass: Fiberglass inground pools have the most size and shape limitations. These pools are pre-fabricated, so customization is limited.

For most homeowners, the cost of an inground pool is somewhere between $39,000 and $70,000—but elaborate, custom shapes can dramatically increase the price. Luckily, there are a lot of shapes and types of pools to choose from. Keep it budget-friendly with a basic rectangle or splurge on a high-end design carved into your landscaping.

8 most popular in-ground pool shapes illustrated, including rectangular, oval or round, and L-shaped

1. Rectangular

There’s a reason rectangular pools are a classic. This shape suits all different types of inground pools—whether you’re looking for a lap pool, infinity pool, or spool. It’s the perfect balance of versatility and style. If you have a small yard, you can install a two-person plunge pool. If you have a longer yard, you can install a pool that’s perfect for swimming laps. On top of that, finishes like tile or stone can give your backyard a luxe look.

2. Oval or Round

Curved pool shapes stem all the way back to the 1930s when pool designer Philip Ilsley helped popularize the style among his celebrity clients. Today, you don’t need to live in Hollywood to enjoy the way this shape packs a punch. Compared to a rectangular pool, rounded pools take up less space in your yard while providing a larger swim area. 

3. Kidney-Shaped

Kidney-shaped pools are the pinnacle of mid-century modern backyard design. This shape harkens back to 1948 when landscape architect Lawrence Halprin designed one of the first kidney-shaped pools for the Donnell Garden, called the Donnell Pool. Today, this is one of the most popular high-end designs.

4. L-Shaped

L-shaped pools are designed to wrap around the corner of a home or pool deck. This helps seamlessly integrate your pool into your backyard design—rather than looking like an afterthought. Depending on the depth, the shape can also help delineate a clear shallow and deep end. 

5. Figure-Eight

Figure-eight-shaped pools are just what they sound like—they’re curved to look like the number eight. This design is similar to a kidney-shaped pool, with two wider round sections connected by a slimmer middle section. This shape is a great way to separate a deep end from a shallow end or work in a cool water feature.

6. Freeform

Freeform pool shapes are organic or curvilinear shapes—basically, you won’t find any right angles. These designs are the middle ground between modern construction and a natural pond or tide pool. Plus, the design possibilities are endless. You can even design the curves to work around your existing landscape features. Keep in mind, not all types of pool covers will work with freeform designs.

7. Geometric

Geometric pools feature hard angles and straight lines. You’ll often see these pools with vanishing edges or square hot tubs. This type of pool works well with modern or contemporary homes, playing off the angular look. Pair with glass pool fencing for an ultra-modern look.

8. Grecian or Roman

It doesn’t get much older than this. Grecian or Roman-style pools pay homage to the ancient baths of Europe. They typically have a curved area on the ends that’s ideal for jet features and seating. 

9. Custom

If you want a custom-shaped pool—the sky’s the limit. You can choose novelty designs (like a heart, star, or moon) or something catered specifically to your home’s landscape design. 

Keep in mind that a custom pool may require a custom pool cover. To get a full idea of the custom pool possibilities, contact an inground pool installer near you.

Choosing the Right Pool Shape for Your Home

Choosing the right pool design for your home depends on a variety of factors. First, you’ll need to choose a shape that works with your yard. A round pool is a great option for a smaller yard, while an irregularly-shaped yard may call for a custom pool shape. Yards with tight usable space may be the perfect place for an L-shaped pool that wraps around the corner of the house.

Another factor to consider is your budget. Rectangular pools are not only less expensive to install, but you can often also use standard-sized accessories like covers, which will save you money as well. A custom pool will be much less budget-friendly, especially when you add in the cost of a custom cover. Also, some custom shapes might only be available in concrete, which will significantly increase the cost to build a pool.

When considering putting in a pool, it’s always a good idea to consult with a local pool installer to help you decide on the right pool shape for your yard. They’ll be able to make recommendations based on your yard, budget, and vision for your pool.

Mariel Loveland contributed to this piece.

Frequently Asked Questions

Rectangular pools, particularly those made of vinyl or fiberglass, are the easiest to maintain. The long, straight sides, right angles, and smoother surface make regular cleaning a breeze without having to maneuver into curves and nooks. Rectangular pools also tend to be standard sizes, so you may have an easier time when it comes time to replace liners, covers, and other parts.

Round and freeform pools are popular choices for a small backyard, although a small yard may be able to accommodate a variety of shapes. When planning a pool for your small yard, remember to take into account pool deck space, fencing requirements, and other pool-related factors that may limit your choices.

Rectangular pools are the most popular inground pool shape, due to their adaptability to different uses, from swimming laps to hosting parties. These pools can easily include other sought-after features, such as tanning ledges, waterfalls, sport nets, and more. Rectangular pools are also often easier to install and maintain, and prefabricated rectangular pools generally have a shorter installation time, so you can start enjoying your pool faster.

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