Clean lines and real swimming space built for your family
Whether you swim laps before work or host every neighborhood cookout, your pool should give you real swimming space with clean lines that look intentional next to your patio and landscape.
The most popular pool shape for a reason
You get the most usable water per square foot. Whether you swim laps, play games, or entertain, a rectangular shape gives you the space to do it all.
If you want the most usable swimming area per square foot, a rectangular pool is your starting point. Straight walls and symmetrical proportions give you clear lane space for laps, predictable depth zones for kids, and an open floor for water sports. You get more swimmable water in less shell.
The structured shape also makes design easier. A rectangular pool pairs naturally with linear paver patios, retaining walls, and contemporary landscapes. The result feels architectural and intentional instead of dropped into the yard.
Whether your yard is a tight side lot or a deep suburban spread, there is a rectangular shell sized for it. Nine models range from a compact 10 x 20 to a full-size 16 x 41 so you can match the pool to your property instead of the other way around.
Rectangular Pools at a Glance
Models available
9 pool models
Size range
10' x 20' to 16' x 41'
Depth range
3'6" to 8'6"
Key features
Tanning ledges | Sport bottoms | Diving depth | Integrated spa
Rectangular shells built for how you swim
Every model starts with clean geometric lines. What changes is the size, depth, and built-in features. Similar models are grouped together below.
Goliath
The flagship rectangular shell and the most versatile pool in the Thursday Pools lineup. Six sizes mean there is a Goliath that fits almost any yard. If you are not sure what size you need, start here.
Good fit if
- Your yard can accommodate 12 to 16 feet of width
- You want a single pool that handles laps, play, and entertaining
- You are looking for the widest range of size options in one design
- You want a classic rectangular look that pairs with any patio style
Specs: 6 sizes from 12' x 24' to 16' x 40' | Depths from 3'6" to 6'6" | Up to 19,200 gallons
Aspen
A rectangular pool with a patented built-in tanning ledge. Five sizes give you plenty of room for both lounging and swimming in the same shell. For families who want to sunbathe in six inches of water and still have a real swimming pool behind them.
Good fit if
- You want a tanning ledge without sacrificing swimming space
- Your family splits between loungers and swimmers
- You like the idea of a shallow play area built into the pool
- You want a rectangular shape with a resort-style feature
Specs: 5 sizes from 12' x 24' to 16' x 40' | Depths from 3'6" to 6' | Integrated tanning ledge
Monolith
The deepest fiberglass pool Thursday Pools makes. An 8-foot 6-inch deep end makes this one of the only fiberglass shells approved for Type 1 diving. If your family wants a diving board, this is where you start.
Good fit if
- You want a diving board or deep-end jumping
- Your yard has room for a full-depth pool
- You are building a pool for teenagers and adults who want real depth
- You want something that feels like a traditional deep-end pool
Specs: 16' x 35' | Depth: 3'6" to 8'6" | ~17,000 gallons | Type 1 diving approved
Lil Bob and Lil Bob LX
Flat-bottom sport pools built for real swimming depth across the entire length. No shallow end, no wasted space. The LX adds a tanning ledge at one end for lounging. These pools are built for families who actually swim.
Good fit if
- You want consistent depth for exercise or water sports
- You prefer a flat bottom over a sloped floor
- Your kids play water volleyball, basketball, or Marco Polo
- You want a sport pool with an optional lounging ledge (LX)
Specs: Multiple sizes | Flat-bottom design | Consistent 4' to 5' depth throughout | LX adds tanning ledge
Spirit. Magnate. Mack Daddy. Cortona.
Specialty rectangles for when a standard shape is not quite enough. The Spirit is a sport-bottom design. The Magnate adds a full tanning ledge to a 16 x 36 shell. The Mack Daddy integrates a built-in spa. And the Cortona offers a sunken-living design with bench seating throughout. Each one starts with clean rectangular lines and adds something different.
Good fit if
- You want a rectangle with a specific built-in feature
- You are drawn to the idea of an integrated spa (Mack Daddy)
- You want bench seating built into the pool walls (Cortona)
- You need a large 16 x 36 shell with a lounging area (Magnate)
Specs: Sizes up to 16' x 36' | Depths vary by model | Sport-bottom, tanning ledge, integrated spa, and sunken-living options
A landscape designed to make your rectangular pool shine
Your pool is only part of the picture. The hardscape, plantings, and lighting around it finish the design.
Linear paver patios
You step out of the pool onto a surface that feels like it was always part of the plan. Clean-edged pavers with straight coping lines reinforce the modern look and create a seamless transition from water to patio.
Formal hedge and ornamental grass borders
Your pool area feels finished and private without a fence doing all the work. Low boxwood hedges, ornamental grasses, and structured planting beds frame the space so it feels intentional and architectural.
LED perimeter lighting and water features
Your pool becomes a completely different space after dark. Recessed LEDs along the edge and uplights on the deck turn it into an evening centerpiece. Add a sheer descent or scupper for moving water and ambient sound.
“Ciara made everything easy. She walked the yard with me, pointing out possibilities and making thoughtful suggestions. We worked together as a team to design a landscaping plan that fit my vision and lifestyle.”
Ready to find your rectangular pool?
Tell us about your yard, your family, and how you want to use your pool. We will help you find the right rectangular shell from Thursday Pools and design the landscape around it.
Proudly serving Newburgh, Evansville, and the greater Tri-State area