Best 18 Ft Above Ground Pool for Round or Rectangular Yards

#1 · Best Overall

1. Intex Prism Frame Pool

• Dimensions: 216"L x 216"W x 48"H
• Capacity: 6423 gallons
• Material Type: Metal, Plastic

Best for: Quick-setup family pool.

Why it ranks #1: This 18-foot round, 48-inch-deep set holds 6,423 gallons and includes a pump, ground cloth, ladder, and cover for a complete setup.

The composite T-joint frame is the key convenience here: Intex says assembly takes about an hour, helping buyers get an 18-foot round pool ready without a complicated frame process. Its 48-inch depth and included ground cloth, ladder, pump, and cover make this a complete backyard package for seasonal swimming.

The 18-foot diameter and 6,423-gallon capacity provide room for group swimming, while the 48-inch depth defines the pool’s usable height. Powder-coated steel tubing and rust-resistant composite T-joints support the frame, and the quick-assembly design helps simplify setup. The included ground cloth goes beneath the pool, and the cartridge filter pump, ladder, and cover supply key pieces for starting and maintaining the pool. Plan for level ground and space for the round footprint.

Skip it if you want a 52-inch-deep pool; the Intex Ultra XTR 26329EH offers that greater listed depth.

This Intex set suits households seeking a round, 18-foot seasonal pool with core setup accessories included. Its 48-inch depth and level-ground requirement are practical boundaries to weigh before choosing a site.

Listed on Amazon as: INTEX Prism Frame 18ft x 48in Round Above Ground Swimming Pool Set w/Pump

#2 · Filter Bundle

2. Intex Prism Frame Pool Set

• Dimensions: 216"L x 216"W x 48"H
• Capacity: 6423 gallons
• Material Type: Polyvinyl Chloride (PVC)

Best for: Hydro-aeration filtration package.

Why it ranks #2: It matches the 18-foot, 48-inch, 6,423-gallon round format and includes a filter pump, ground cloth, and six replacement filters.

Intex’s Hydro Aeration Technology is the defining feature of this 18-foot Prism Frame set, supporting circulation, filtration, and water clarity through its pump. The 48-inch-deep pool holds 6,423 gallons at 90% capacity and includes a cover, ladder, ground cloth, and replacement filters.

The included 110–120V cartridge filter pump is listed at 1,000 gallons per hour, and Hydro Aeration Technology is described as improving circulation, filtration, and water clarity. That combination gives owners a defined filtration setup for the 6,423-gallon pool at 90% capacity. The 18-foot round footprint and 48-inch height help establish site and depth needs. A cover, ladder, ground cloth, and six replacement filters are listed, helping supply setup and ongoing filter changes.

Skip it if you want a 52-inch-deep round pool; the Intex Ultra XTR 26329EH lists that depth.

This Prism Frame set suits buyers who want a round pool with a specified pump and replacement filters included. Its 48-inch height is the key fit boundary for swimmers seeking greater listed depth.

Listed on Amazon as: Intex 26731EH 18ft x 48in Outdoor Prism Frame Above Ground Swimming Pool Set with Cover, Ladder, Filter Pump, and 6 Replacement Filters, Gray

#3 · Quick-Connect Frame

3. Bestway Steel Pro MAX

• Dimensions: 20.87"L x 20.28"W x 51.18"H
• Capacity: 6092 gallons
• Material Type: Stainless Steel

Best for: Seasonal setup and storage.

Why it ranks #3: This 18-foot round, 48-inch pool holds 6,092 gallons and includes a pump, ground cloth, ladder, liner, and cover.

Bestway’s ClickConnect joints make the Steel Pro MAX useful for buyers who want a pool that can be taken down for off-season storage. The 18-foot round, 48-inch-deep set holds 6,092 gallons and includes a pump, ground cloth, ladder, and cover for a ready-to-equip backyard setup.

The quick-click connectors simplify assembling the steel frame and taking it apart when swimming season ends, a helpful combination for buyers who store their pool between seasons. Its corrosion-resistant steel frame supports the pool structure, while the 18-foot diameter and 48-inch depth define the space and water depth available. The listed 6,092-gallon capacity gives a sense of its fill requirement. A filter pump, ground cloth, ladder, and cover are included, reducing the need to source those items separately.

Skip it if you need a 52-inch-deep pool; the Bestway APX 365 561MFE-BW lists that greater depth.

Choose this Bestway for a seasonal backyard pool when take-down and off-season storage matter. Its 48-inch depth and 6,092-gallon capacity should fit the intended swimmers and site before setup.

Listed on Amazon as: Bestway Steel Pro MAX 18' x 48" Above Ground Swimming Pool Set with Pump

#4 · Highest Capacity

4. Bestway Hydrium Steel Wall

• Dimensions: 216.54"L x 216.54"W x 51.18"H
• Capacity: 7192 gallons
• Material Type: Galvanized steel

Best for: Semi-permanent backyard installation.

Why it ranks #4: Its 18-foot round footprint and 52-inch height provide a listed 7,192-gallon capacity, with galvanized steel walls for semi-permanent placement.

The Hydrium’s galvanized-steel walls, supports, and top platform support its semi-permanent role for buyers planning to keep a pool in place through the year. Its 18-foot round footprint, 52-inch height, and 7,192-gallon capacity make it a high-capacity option among the listed pools.

Bestway describes the Hydrium as semi-permanent, so it suits buyers planning a more lasting backyard installation rather than routine seasonal takedown. Galvanized-steel walls, supports, and a top platform resist corrosion and support the structure. The 18-foot round footprint and 52-inch height define the site and pool profile, while the listed 7,192-gallon capacity signals a substantial fill requirement. The included components list says tools; the provided listing does not identify a pump, ladder, or ground cloth as included.

Skip it if you want a pump and ladder in the listed set; the Intex Prism Frame 26731EH includes both.

The Hydrium fits buyers seeking a semi-permanent, steel-wall pool and prepared for its 7,192-gallon capacity. Its year-round positioning makes it a poor match for buyers who need easy seasonal takedown.

Listed on Amazon as: Bestway Hydrium 18' x 52" Steel Side Wall Above Ground Pool with Pump

#5 · Rectangular Set

5. Intex Ultra XTR Rectangular

• Dimensions: 216"L x 108"W x 52"H
• Capacity: 4545 gallons
• Material Type: Polyvinyl Chloride (PVC)

Best for: Rectangular pool and sand filtration.

Why it ranks #5: The complete 18-by-9-foot, 52-inch set includes a sand filter pump, ladder, and ground cloth, with a listed capacity of 4,545 gallons.

The 18-by-9-foot rectangular layout gives this Intex Ultra XTR a longer, narrower footprint than round 18-foot pools, while its 1,500 GPH sand filter pump is included. The 52-inch height and 4,545-gallon capacity suit buyers comparing both site shape and filtration setup.

The rectangular 18-by-9-foot footprint can fit a backyard layout better than a round pool when the available area is long and narrow; allow at least four feet of clear space on all sides. A 52-inch height and 4,545-gallon capacity define the pool’s depth and water needs. The included sand filter pump, ground cloth, and ladder provide key setup components. Its three-ply liner combines polyester mesh with thick PVC, described as tear-resistant, supporting durability during regular use.

Skip it if you have room for a round pool but not a long rectangle; the Intex Prism Frame 26731EH uses an 18-foot round footprint.

This Ultra XTR suits buyers who prefer a rectangular pool and want a sand filter pump in the package. Measure for the 18-by-9-foot footprint plus four feet of clear space on every side.

Listed on Amazon as: INTEX 26355EH Ultra XTR Deluxe Rectangular Above Ground Swimming Pool Set, 18ft x 9ft x 52in, Includes 1500 GPH Sand Filter Pump, SuperTough Puncture Resistant, Rust Resistant, Easy to Assemble

#6

6. Intex Ultra XTR Round

• Dimensions: 216"L x 216"W x 52"H
• Capacity: 700 gallons
• Material Type: Alloy Steel, Polyvinyl Chloride (PVC), Vinyl

Best for: Automatic-cleaning bundle buyers.

Why it ranks #6: This 18-foot round, 52-inch pool includes a filter pump, ground cloth, ladder, and automatic vacuum bundle, though its listed capacity is inconsistent.

The included Intex Deluxe Automatic Vacuum Cleaner connects to the pool inlet and uses water suction for automatic cleaning, giving this 18-foot pool bundle a maintenance feature beyond its basic frame and pump. Its 52-inch depth and galvanized-steel locking frame suit buyers seeking a deeper round pool set.

The vacuum cleaner connects to the collapsible pool inlet fitting, where the listing says water suction powers cleaning; that connection-based workflow can help with routine pool maintenance. The galvanized-steel frame uses a precision-engineered locking system, supporting frame stability and durability. At 18 feet across and 52 inches deep, the pool has a taller profile than 48-inch alternatives. The bundle lists a filter pump, ground cloth, and ladder, though its stated 700-gallon capacity conflicts with the vacuum’s 700-gallon-per-hour suction description, so capacity should not be inferred from that figure.

Skip it if you want a clearly stated pool capacity; the Intex Prism Frame 26731EH lists 6,423 gallons.

This bundle suits buyers who value an included automatic cleaner and a 52-inch-deep round pool. Review the listing’s conflicting 700-gallon figure before planning water treatment or filling logistics.

Listed on Amazon as: INTEX Ultra XTR 18ft x 52in Above Ground Swimming Pool Set Bundle

#7

7. Bestway APX 365

• Dimensions: 52"H
• Capacity: 4352 gallons
• Material Type: Galvanized Steel

Best for: Year-round oval pool setup.

Why it ranks #7: The 18-by-9-foot, 52-inch rectangular model lists a 4,352-gallon capacity and galvanized steel construction for year-round placement.

The APX 365 combines a galvanized-steel frame with a 52-inch depth, making it the listed option for buyers seeking a pool intended to remain up year-round. Its 18-by-9-foot oval footprint and 4,352-gallon capacity offer a different layout from the round 18-foot pools in this group.

The 18-by-9-foot oval footprint can suit a backyard where a rectangular layout fits better than a round pool, while the 52-inch depth provides the listed swimming height. Bestway says the galvanized steel resists rust and damage from the elements, supporting its year-round positioning. ClickConnect joints use quick-click connectors for simpler setup. The listing includes an instruction manual and liner, but does not list a pump, ladder, or ground cloth, so account for those needs separately.

Skip it if you need a pump and ladder included; the Bestway Steel Pro MAX 56463 lists both in its set.

This APX 365 fits buyers prioritizing an oval footprint and a pool intended to stay up year-round. Check the site dimensions and plan for equipment beyond the listed liner and manual.

Listed on Amazon as: Bestway APX 365 18' x 9' x 52" Above Ground Pool Set with Sand Filter Pump

#8

8. SunSwell Rectangular Pool

• Dimensions: 212.6"L x 106.3"W x 47.24"H
• Capacity: 3848 gallons
• Material Type: Polyvinyl Chloride (PVC)

Best for: Repair-ready compact oval.

Why it ranks #8: This 18-by-9-foot pool lists a 3,848-gallon capacity and includes a ladder and filter pump, but its ground cloth is not included.

The 3-ply puncture-resistant PVC construction, supplied with repair patches, gives this SunSwell pool a practical repair option for everyday wear. Its 18-by-9-foot inner dimensions and 47.24-inch height provide an oval swimming area, while the listed 3,848-gallon capacity helps buyers gauge filling needs.

The PVC liner’s three-ply construction is described as puncture-resistant, and the included repair patches offer a way to address small damage. The inner 18-by-9-foot dimensions describe the swimming area, while the overall frame footprint is listed as 20 feet by 11 feet 3.4 inches, so site planning should use the larger measurement. At 47.24 inches tall and 3,848 gallons, it is a smaller-capacity option than several deeper pools. The ground cloth is not included.

Skip it if you need a ground cloth in the package; the Intex Prism Frame 26731EH includes one.

This SunSwell suits buyers wanting an oval PVC pool with patches included and a clearly listed inner footprint. Allow for its larger frame dimensions, source a ground cloth, and consider seasonal temperature during setup.

Listed on Amazon as: 18ft X 9ft X 47in Above Ground Pool with Ladder and Filter Pump

#9

9. In The Swim Oasis

• Dimensions: 216 x 216 x 52 in

Best for: Existing-equipment pool replacement.

Why it ranks #9: The 18-foot round, 52-inch replacement pool includes a liner and skimmer, but the pump, filter system, and ladder must be supplied separately.

The Oasis is explicitly positioned as a replacement pool for owners who want to keep using their existing pump, filter system, and ladder. Its 18-foot round, 52-inch dimensions make it a substantial replacement option, while the included liner and skimmer provide two core pool components.

This pool base kit is aimed at replacing an aging above-ground structure without replacing equipment already on hand, which can simplify a refresh for owners with a working pump, filter, and ladder. The 18-foot round footprint and 52-inch height establish the listed size. A liner and skimmer are included, supporting the pool’s basic setup and water intake. The equipment notice is important: pump, filter system, and ladder are not included, so buyers without those items need a separate package or purchases.

Skip it if you lack pool equipment; the Intex Prism Frame 26731EH includes a pump and ladder in its set.

The Oasis fits pool owners replacing an existing round structure while retaining compatible equipment. It is not a complete equipment package, so confirm you already have a pump, filter system, and ladder.

Listed on Amazon as: In The Swim Oasis 18 ft Round Above Ground Swimming Pool

#10

10. In The Swim Epic

• Dimensions: 216"L x 216"W x 52"H
• Material Type: Fiberglass

Best for: Warm-tone pool replacement.

Why it ranks #10: This 18-foot replacement pool includes a liner but not a pump, filter, or ladder, and its description inconsistently refers to an oval pool.

The Epic’s warm-toned pool wall and mocha finish give replacement buyers a neutral-looking alternative to a bright blue pool exterior. It measures 18 feet round by 52 inches high and includes a liner, making this a pool base kit for owners planning to reuse existing equipment.

In The Swim positions the Epic as a replacement for an aging above-ground pool, with the aim of keeping an existing pump, filter system, and ladder in use. Its 18-foot round dimensions and 52-inch height set the pool’s footprint and profile, while the included liner is part of the base kit. The warm-tone wall is described as fitting a range of backyard décor. The listing specifically excludes pump, filter system, and ladder, so this option depends on equipment already available.

Skip it if you need filtration and access equipment included; the Bestway Steel Pro MAX 56463 lists a pump and ladder.

This Epic suits owners replacing a pool who want a warm, neutral exterior and already have compatible equipment. Its base-kit format leaves pump, filter system, and ladder to the buyer.

Listed on Amazon as: In The Swim Epic 18 ft Round Above Ground Swimming Pool