20' x 40' Oval Polymer Wall In Ground Pool W/ Step

20' x 40' Oval Polymer Wall In-Ground Pool Kit (42" Wall)

The 20' x 40' Oval Polymer Wall In-Ground Pool Kit offers a full-scale, resort-sized swimming footprint paired with a smooth, flowing silhouette that softens backyard landscaping. Combining straight side walls with sweeping full-radius curved ends, this generous oval layout gives families, serious swimmers, and large gatherings plenty of open water for lap swimming, water sports, and lounging without sharp corners. Its curved ends also encourage natural, continuous water circulation around the entire perimeter.

Unlike traditional steel-wall pools that can eventually rust or oxidize when exposed to damp soil or sanitizing chemicals, this pool system is engineered from heavy-duty structural thermoplastic polymer panels. Polymer will never rust, rot, or corrode, making it completely unaffected by groundwater, acidic soil conditions, and saltwater chlorination systems. Each panel features a deep-ribbed structural backing that provides dependable load-bearing strength against soil backfill while remaining lightweight enough for straightforward handling and alignment during installation.

The 42" wall height serves as a versatile perimeter foundation that adapts to your backyard plans. Your kit comes supplied with a standard diving-approved liner design, or you can customize the liner depth and floor profile—such as a flat-bottom layout or a custom-sloped deep end—to match your exact swimming needs. Paired with continuous curved end panels, the vinyl liner seats smoothly along the perimeter without corner bunching or overstretching.

Key Structural & Design Features

• Classic Oval Design: Straight side walls paired with full-radius curved ends create a softer, organic backyard look and improve perimeter water circulation.
• 42" Industry-Standard Wall Height: Pairs seamlessly with the included standard diving-approved floor profile, or accommodates custom flat-bottom and sloped excavation depths.
• Custom Liner Depth Options: Supplied standard with a diving-approved liner design, with full customization available to tailor the floor depth and slope to your preferences.
• Non-Corrosive Structural Polymer Panels: Molded thermoplastic walls resist rust, corrosion, and underground deterioration for long-term structural reliability.
• 100% Saltwater Compatible: Non-metallic wall panels, braces, and fasteners prevent galvanic corrosion when paired with saltwater chlorine generators.
• Reinforced Wall Bracing System: Includes heavy-duty polymer X-braces with integrated deck supports and ground stakes to keep walls plumb and transfer patio weight evenly.
• Non-Corrosive Fasteners: Self-aligning nylon shoulder bolts lock panels together tightly without seizing or rusting underground.
• Factory-Molded Openings: Skimmer and return openings are pre-molded directly into the structural panels for a clean, watertight seal without field cutting.

Specifications Summary

• Pool Size: 20' x 40' Oval
• Wall Height: 42"
• Pool Shape: True Oval (Straight Sides with Full-Radius Curved Ends)
• Wall Material: Heavy-Duty Ribbed Structural Thermoplastic Polymer
• Liner Profile: Supplied with Standard Diving-Approved Design (Custom Depth Profiles Available)
• Bracing System: Non-Corrosive Polymer Deck-Support Braces
• Sanitation Compatibility: Traditional Chlorine, Saltwater, Mineral, or Ozone

Included Kit Components

• Complete 20' x 40' x 42" Structural Polymer Wall Panel System (Straight & Curved Panels) & Braces
• Non-Corrosive Nylon Assembly Hardware
• 20-Mil Virgin Vinyl In-Ground Pool Liner (choice of patterns; supplied in a standard diving-approved design, with custom depth options available)
• Bullnose Coping & Liner Track System
• In-Ground Skimmer and Return Fittings

Optional Upgrades & Add-Ons

• Walk-In Pool Steps & Ladders: Thermoplastic straight-side or radius entry steps (with optional tanning ledge), plus stainless steel in-ground ladders.
• Filtration & Circulation Equipment: In-ground pool pumps and sand, cartridge, or D.E. filter systems.
• Wall Foam & Spray Adhesive: Adds thermal insulation and creates a smooth, cushioned barrier between the polymer walls and vinyl liner.
• Pool Lighting: Nicheless or standard LED in-ground pool lights.
• Sanitation & Heating: Saltwater chlorine generator, gas pool heater, or electric heat pump.

Purchasing & Delivery Details

• Flexible Layaway: Lock in your pool kit price with our free layaway program and schedule delivery when your backyard site is ready.
• Local Warehouse Pickup: Save $300 when you pick up your complete pool kit directly from our local warehouse.
• Freight Delivery: Lift-gate service is needed at an additional cost.

Note: Concrete collar footing, pool base material (vermiculite or sand/cement mix), filtration equipment, Sch 40 PVC plumbing pipe/fittings, and electrical wiring are sourced separately or added via kit upgrades during ordering.

Common Questions & Answers

What are the benefits of an oval in-ground pool shape?

An oval pool blends the usable swimming lane length of a rectangular pool with smooth, curved ends that soften hard patio lines. Because there are no sharp corners, water circulates more evenly with fewer dead spots, and robotic pool cleaners track smoothly around the entire wall perimeter.

Why choose polymer wall panels over galvanized steel walls?

Polymer panels will never rust, oxidize, or corrode when exposed to wet soil, high groundwater, or pool chemicals. They are also lighter than steel panels, making them easier to carry and position during excavation and assembly while still offering full structural strength once backfilled and locked into a concrete collar.

Can I use a saltwater chlorine generator with this pool kit?

Yes. Because the wall panels, support braces, and nylon assembly bolts are 100% non-metallic, there is no risk of saltwater causing galvanic corrosion or rusting the pool structure underground.

How deep is the pool with 42" walls?

The 42" measurement refers to the height of the perimeter wall panels, which holds roughly 36" to 38" of water along the shallow perimeter. Your kit comes standard with a diving-approved liner profile (featuring a sloped deep-end hopper), or you can order a custom liner tailored to a flat-bottom layout or a specific deep-end depth.

What additional materials do I need to purchase locally for installation?

In addition to your pool kit (and any filtration, step, or ladder upgrades you select), you will source concrete for the perimeter collar footing, pool base material (such as vermiculite or a sand/Portland cement mix), Schedule 40 PVC pipe and fittings, backfill material, and electrical wiring/bonding supplies locally.

How is the pool kit delivered, and do I need a lift-gate?

Pool kits ship via commercial freight carrier on oversized pallets. Unless you have a forklift or loading dock at the delivery address to unload the pallets from the truck bed, lift-gate service is needed at an additional cost to lower the freight to the ground. You can also save $300 by picking up your order directly at our local warehouse.

Can I install this pool kit myself as a DIY project?

Yes, many homeowners install polymer wall in-ground pool kits themselves or act as their own general contractor by hiring local subcontractors for specific stages such as excavation, concrete collar pouring, and electrical bonding.