If you’re upgrading an above-ground pool, an expandable liner is often the easiest choice for a clean, secure fit on steel-sided pools. This guide highlights five select options that balance durability, affordability, and ease of installation. Each liner is designed for 60″ or 72″ wall heights and fits pools with dished-out middles. The best picks below target different pool sizes and patterns to match your aesthetic and sizing needs. The buyers below are best suited for DIY installers, budget-conscious replacements, and families seeking simple maintenance with reliable protection against water leakage.
| Product | Pattern | Pool Type Fit | Wall Height | Material | Best For |
|---|---|---|---|---|---|
| Smartline 24 ft Round – Sunlight | Sunlight | Steel Sided Above Ground | 60″ | 25 Gauge Virgin Vinyl | Mid-size round pools, budget-friendly |
| SmartLine 18 ft x 33 ft Oval – Sunlight | Sunlight | Steel Sided Above Ground | 60″ | 25 Gauge Virgin Vinyl | Oval layouts, durable pattern |
| Smartline 28 ft Round – Swirl Bottom | Swirl Bottom | Above Ground, dished Middles | 72″ | 25 Gauge Virgin Vinyl | Larger round installs, decorative bottom |
| Smartline 27 ft Round – Sunlight | Sunlight | Steel Sided Above Ground | 60″ | 25 Gauge Virgin Vinyl | Classic round setup, reliable choice |
| Smartline 27 ft Round – Swirl Bottom (20 GA) | Swirl Bottom | Steel Sided Above Ground | 60″ | 20 Gauge Virgin Vinyl | Budget-friendly 20 GA option |
Smartline 24 ft Round Sunlight Liner
The Sunlight pattern on this 24-foot round, 60-inch high liner is designed for steel-sided above-ground pools with dished middles. The material is 25 gauge virgin vinyl, offering a balance between durability and cost. Installers should measure twice to ensure correct diameter and height before purchase. The liner ships ready for overlap installation, with no bead receivers required. Best for budget-friendly round pools, especially when replacing an older faded liner.
Who it’s best for: homeowners who need a cost-conscious, straightforward replacement for a round pool with standard 60″ walls. Why selected: durable 25 GA vinyl, overlap design, and a popular Sunlight pattern for a clean, bright water look. Caution: the liner will not fit Intex or pop-up pools, so verify pool type before purchase.
SmartLine 18 ft x 33 ft Oval Sunlight Liner
Designed for steel-sided above-ground oval pools, this 18×33 oval expands to a 60″ wall height with 25-gauge virgin vinyl. The Sunlight pattern is hand-folded to minimize creasing and is advised to warm in the sun for about an hour before installation to maximize stretch. Overlap installation is standard, with coping strips securing the bottom edge. Best for oval layouts where durability and a bright water appearance are priorities.
Who it’s best for: oval pool owners seeking a dependable, mid-size liner with a visually appealing pattern. Why selected: oval compatibility, reliable 25 GA vinyl, and easy installation. Caution: should not be used with Intex or pop-up styles; verify wall height and oval diameter first.
Smartline 28 ft Round Swirl Bottom Liner
The 28-foot round option features a Swirl Bottom design in a 72-inch wall height and 25-gauge vinyl. This expandable, overlap liner is crafted to fit above-ground pools with dished middles and is compatible with pools that require a larger footprint. Installation follows the same simple overlap method, with the bottom seam aligned near the cove. Best for bigger round pools seeking a decorative bottom.
Who it’s best for: families with larger round pools and a preference for a stylish Swirl Bottom. Why selected: larger diameter option, increased wall height for deeper zones, and strong 25 GA vinyl. Caution: not compatible with pop-up or Intex styles; confirm dished middle compatibility before buying.
Smartline 27 ft Round Sunlight Liner
This 27-foot round liner uses the Sunlight pattern on a 60-inch wall height, designed for steel-sided pools. The 25-gauge virgin vinyl offers common-sense durability at a reasonable price. It’s installed via overlap method and requires coping strips to secure the bottom edge. Best for medium-to-large round pools seeking a classic blue-water look.
Who it’s best for: pool owners replacing a faded liner and wanting a reliable, mid-to-large round size. Why selected: familiar Sunlight pattern, strong 25 GA vinyl, and straightforward installation. Caution: ensure your pool is 60″ walls and steel-sided; not compatible with Intex or pop-up models.
Smartline 27 ft Round Swirl Bottom – 20 GA
The 27-foot round Swirl Bottom liner is offered in a 20-gauge option for budget-conscious buyers. It shares the same overlap installation approach and dished-middle compatibility, making it a practical choice for smaller budgets without sacrificing pattern appeal. Best for value-focused installations that still want a decorative bottom. Caution: 20 GA options may wear sooner than thicker vinyl in high-traffic seasons; check local climate and usage patterns.
Buying Guide: Key Considerations For Choosing An Above Ground Expandable Liner
- Pool shape and size: Confirm round vs oval, exact diameter or length, and wall height (60″ vs 72″).
- Pattern choice: Sunlight patterns offer a bright, classic look; Swirl Bottom adds visual depth. Select according to pool decor and personal preference.
- Vinyl gauge: 25 GA is common and durable; 20 GA is cheaper but less resistant to punctures and wear.
- Installation type: Overlap expandables drape over walls; ensure your coping strips, cove, and top rails are compatible with the liner type.
- Compatibility: Some expandable liners exclude Intex, Pop-Up, or certain dished middles. Always verify pool model and wall design.
- Temperature and storage: For best stretch, install in mild conditions (about 70–80°F) and lay flat in sun before water filling.
- Durability vs budget: Weigh the trade-offs between gauge, pattern aesthetics, and future replacement costs.
FAQ: Quick Answers For Buyers
- What is an expandable liner? A liner designed to drape over pool walls with a bottom seam near the cove; it is held in place by coping strips and top rails, and it conforms to dished Middles.
- Will these liners fit all above-ground pools? They fit many steel-sided above-ground pools with 60″ or 72″ walls and dished middles but not Intex or pop-up models. Check compatibility before purchasing.
- How do I know which gauge to choose? 25 GA offers solid durability at a reasonable cost; 20 GA is thinner and typically cheaper, suitable for lighter usage or tighter budgets.
- Is the Sunlight pattern better than Swirl Bottom? It depends on aesthetics. Sunlight provides a bright, straightforward look; Swirl Bottom adds a more decorative, ocean-like feel.
- Do I need bead receivers for these liners? No, expandable overlap liners described here do not require bead receivers.
- Can I install these myself? Yes, installation is designed for DIY; follow the manufacturer’s guidelines, heat the vinyl before water fill, and ensure walls and cove are correctly prepared.