Top 5 Most Popular Thursday Fiberglass Pool Designs in NWI in 2026

Are you in the market for a new inground pool? If so, you may be asking yourself questions like, “How much yard space am I ready and willing to give up for a pool?”, and, “Do I want a saltwater pool or a traditionally chlorinated pool?”, and perhaps most importantly, “Of the three main pool types, which one is best for me?”

Technological innovations to the fiberglass pool manufacturing process have made fiberglass pools one of the most innovative and desirable inground pool types available. One of the industry leaders leading the charge on fiberglass pool manufacturing is Thursday Pools, a fiberglass pool manufacturer based in Fortville, Indiana.

Royal Pools G2 Landscaping installs Thursday Pools. They have been one of our go-to manufacturers for years. Fiberglass pools are not customizable the way concrete and vinyl liner pools are, meaning the shapes and sizes offered by a manufacturer are the only ones available. New pool prospects love Thursday Pools designs. So, let’s talk about five of the most popular pool models they offer.

Aspen

Landscape photo of a white fiberglass pool surrounded by a light-gray concrete patio connected to the back of a house. In the foreground of the image behind the patio is a long garden bed that wraps around the outer corner of the image. Lounge chairs rest on both length-sides of the pool.

For years now, the most popular Thursday Pools model that we sell here at RPG2 is the… drumroll please… the Aspen.

A rectangular design combining classic aesthetics with contemporary functionality, the Aspen features a shallow end tanning ledge as well as two deep-end corner seats, making it a perfect place for kiddos to hang out in the shallow end and adults to chill in the deep end.

The Aspen is available in five sizes:

  • 12’ x 25’ 
    • Depth: 3’4” to 5’1”
    • Holds 7,425 gallons
  • 14’ x 30’
    • Depth: 3’4” to 5’6”
    • Holds 7,610 gallons
  • 14’ x 35’
    • Depth: 3’4” to 5’6”
    • Holds 8,423 gallons
  • 16’ x 35’
    • Depth: 3’4” to 5’6”
    • Holds 10,140 gallons
  • 16’ x 40’
    • Depth: 3’4” to 5’10”
    • Holds 13,090 gallons

Goliath

Landscape photo of an inground fiberglass pool with a purple light illuminating the pool. The pool is surrounded by gray concrete, atop which sit multiple lounge chairs surrounding the pool. On the far left side of the image is a handrail into the pool's shallow end cut off by the edge of the image.

Fiberglass pools are built in controlled facilities and then transported to their installation site, meaning that freight laws prohibit them from being bigger than 20′ x 41′ on average. The Goliath model features the largest model offered by Thursday Pools, coming in at 16’ x 41’.

Regardless of the size you choose, the Goliath offers ample swim space for both small and large families.

The Goliath is available in six sizes:

  • 12′ x 25′
    • Depth: 3’8″ to 5’4″
    • Holds 8,500 gallons
  • 14’ x 29’
    • Depth: 3’8″ to 5’8″
    • holds 10,000 gallons
  • 14’ x 33’
    • Depth: 3’8” to 6′
    • Holds 11,800 gallons
  • 16’ x 33’
    • Depth: 3’8” to 6′
    • Holds 15,300 gallons
  • 16’ x 37’
    • Depth: 3’8” to 6’4″
    • Holds 17,500 gallons
  • 16’ x 41’
    • Depth: 3’8” to 6’8″
    • Holds 19,700 gallons

Lil Bob

Landscape aerial photo of an inground fiberglass pool surrounded by light-gray concrete connected to the back of a house. Parallel to the corner of the house and pool patio is a brown pergola. Grass surrounds the patio on the edge of the bottom, left, and right side of the image.

Next to the Aspen model, the Lil Bob is perhaps the most iconic fiberglass pool model offered by Thursday Pools. A smaller model, the Lil Bob features wrap-around seating that extends about halfway across the pool’s length.

Fan of volleyball? The Lil Bob is perfectly sized for water volleyball!

If you’re interested in a Lil Bob but want a different size, check out the Lil Bob LX and the new Big Bob models.

The Lil Bob is available in one size:

  • 13’9’ x 27’9”
    • Depth: 4’6”
    • Holds 9,000 gallons

Sea Turtle

Aerial landscape image of a light-blue inground fiberglass pool surrounded by a light gray concrete patio, which is connected to the back of a house and surrounded by a rock bed on the outer edge. Small bushes and evergreen trees sit atop the rock bed. Outside the concrete and rock is grass in the bottom left and right corners of the photo. The top of a gazebo can be seen cut off by the edge of the top right corner of the image.

We couldn’t compile a list of the most popular Thursday Pools models without including a plunge pool, and this one is a favorite among new clients.

A plunge pool is a smaller-than-average pool designed for relaxation, cooling off, and light exercise rather than full swimming. Plunge pools tend to hover around 8 – 20 feet long, 6 – 10 feet wide, and 4 – 6 feet deep. Some plunges reach up to 20 – 25 feet long, although at that point, you’re approaching a standard-sized pool.

The Sea Turtle is similar in design to the Lil Bob, just a smaller version. Plunge pools like the Sea Turtle are great for homeowners looking to conserve yard space while adding a swim space to their backyard that won’t break the bank.

The Sea Turtle is available in one size:

  • 9.5’ x 19.5’
    • Depth: 4’6″
    • Holds 4,300 gallons

Sun Day

Landscape photo of a light-blue inground freeform fiberglass pool taken at a low angle in front of the shallow end. The pool is surrounded by light-gray concrete in the shape of the pool. Grass surrounds the patio in the background of the image. Tall trees and a black fence can also be seen in the background. Behind the pool's deep end are two white lounge chairs and a table with an umbrella and multiple chairs. A neighboring house and above ground pool can be seen beyond the black fence in the background.

Last but not least, we have the Sun Day. Like plunge pools, this list wouldn’t be complete without a freeform pool option. While rectangular pools are fantastic, they definitely look like pools. Interested in replicating your own backyard oasis lagoon look, consider a freeform pool like the Sun Day.

The Sun Day is a favorite among new pool owners in part due to the reasons listed above. This pool in your yard looks like a personal beach resort. Who wouldn’t want that? Deep-end seating combined with open swim space makes this pool perfect for relaxation, parties, and family fun.

The Sun Day is available in three sizes:

  • 15’ x 30’
    • Depth: 3’ to 5’4″
    • Holds 10,000 gallons
  • 16’ x 34.5’
    • Depth: 3’ to 5’8″
    • Holds 12,000 gallons
  • 16’ x 39’
    • Depth: 3’ to 6′
    • Holds 13,300 gallons

Conclusion

There you have it, folks. Five fantastic fiberglass pool models brought to you by one of the industry leaders in fiberglass pool design and manufacturing. We hope you found a fiberglass pool model that is perfect for you and your swim goals.

For more information about fiberglass pools, check out the articles below. For more educational content on all things pools, concrete, and landscaping, dive into our learning hub. Thanks for reading. Have a great day!

Fiberglass Pool Maintenance: How To Master Your Pool

Three Unknown Facts About Fiberglass Inground Pool Construction

Vinyl Liner Pools vs. Fiberglass Pools: Best in Northwest Indiana?

Written by Logan Edgemon