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Inground Pool Shapes and Sizes: How to Choose

Congratulations on taking the plunge and deciding to install an inground pool. But now that you’ve dipped your toe in the water, so to speak, how do you decide between all the pool shapes and sizes that are available?

Well, part of it depends on what type of inground pool you choose to install, and part of it depends on the size of your property. Yet another part of that decision depends on your aesthetics.

To help you decide, let’s go over a few things.

Fiberglass Inground Pools vs a Concrete or Gunite Pool

Fiberglass inground pools are manufactured in a factory, so you have a set number of shapes and sizes to choose from. We install San Juan fiberglass pools. They’re an industry leader, and offer one of the biggest selections of inground pool and spa combinations.

Concrete, or gunite pools, are fully customizable. We can make your pool any shape you want, and nearly any size you want. A concrete pool is suitable for a beach entry or infinity pool if one of those high-end options is what you’re dreaming of.


Fiberglass vs Concrete Pool – Which One Is Right for You?

What Is a Beach Entry Pool, and Is It Right for You?

What Are Standard Inground Pool Sizes?

Common dimensions for a standard rectangular pool are 10 x 20 ft., 12 x 25 ft., 15 x 30 ft. and 20 x 40 ft. As you can see, rectangular pools are generally twice as long as they are wide. Free-form pools will vary quite substantially in size, from small cocktail pools to larger possibilities.

With a fiberglass pool, the width will generally not be more than 16 ft., or longer than 40 ft. This is because the pool needs to be transported to hour home, and anything wider or longer than that would result in an oversized load.

The size of pool you get again depends on the size of your property, how many kids you have, and how many pool parties you plan to throw.

What Is the Best Inground Pool Shape?

The answer to this question is, whatever appeals to you, and whatever will fit in your space. Remember, you will want to include a pool deck. Some popular options include:


Some people want a classic rectangular shape, especially if they plan to use the pool to swim laps. A variation on a rectangular pool is one with length, but curved ends. This is called a Roman End and can be at one end or both.


An L-shaped inground pool has the straight lines of a rectangular pool, but the shorter side provides an area for lounging while another pool user can swim laps on the longer side. There are several possible configurations of the L.


A classic and simple design shape, the kidney pool has been a popular option for decades.

Free Form or Lagoon Style

A lot of people are choosing a free-form or lagoon style. This is a popular option for both fiberglass and concrete pools. These pool shapes may make it a little harder to swim laps, but are great for pool parties and entertaining. They also lend themselves well to creating a waterfall with a grotto and lush pool landscaping that transforms your backyard into a tropical paradise with the right finish.

To help you decide what inground pool shape and size is right for you and your family, check out the San Juan gallery, as well as our swimming pool portfolio.

Make It Exceptional. Make It Woodfield.

If you’re dreaming of lounging poolside, do yourself a favor and go with a pool contractor who is experienced with the type of inground pool you want. If you want a fiberglass pool, research the pool manufacturer that each company installs.

And to save yourself a headache, go with a pool builder who can also handle your pool deck, patio, and pool landscaping. At Woodfield Outdoors, we are your one-stop-shop for all things outdoor living. We work with discerning homeowners in Harford County, Baltimore County, Anne Arundel County, Carroll County, Cecil County, and Howard County.

Schedule a call today to get started creating your outdoor oasis.

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