The 20x40 Flat Back Kidney (Algrave) inground pool kit combines the natural beauty of a freeform pool with the practical advantages of a straight-edge design. Its signature curved profile delivers a relaxed, organic look, while the flat back wall allows the pool to fit more efficiently in most backyards, especially along patios, fences, retaining walls, and property lines.

With a spacious 20x40 footprint, this pool provides ample room for swimming, floating, and entertaining without sacrificing deck usability. The flat back design improves layout flexibility, creates cleaner installation lines, and maximizes usable swim space—making it an ideal choice for homeowners who want a premium pool that works seamlessly with their outdoor living area.

Liner Pattern Options

Choose from a wide range of premium vinyl liner patterns to personalize your pool’s appearance. Each liner is engineered for long-term durability, resisting fading, stretching, and chemical wear while enhancing water color and visual depth.

Walk-In Step Option

Upgrade with a molded walk-in step designed for safe, comfortable entry. Slip-resistant surfaces and a built-in resting area make this option ideal for swimmers of all ages and create a welcoming entry point in the shallow end.

Coping Choices

Select from multiple coping styles to achieve a clean, finished edge around your pool. Coping options are designed to complement concrete, paver, or stone decking while protecting the pool structure and creating a smooth transition from pool to deck.

Frame System Options

Choose a heavy-duty frame system engineered to withstand soil pressure and seasonal ground movement. Corrosion-resistant construction provides long-term structural stability and dependable performance.

Deck Support System

Heavy-duty deck supports help maintain proper deck alignment and structural integrity. Designed for poured concrete or paver decks, this system enhances safety, longevity, and the overall quality of the pool installation.

The 20x40 Flat Back Kidney (Algrave) inground pool kit is the perfect solution for homeowners who want the elegance of a freeform pool with the practicality of a design that fits better in real-world backyards.