When you have an 18 x 36 ft pool, the right cover saves water, reduces debris, and extends your swimming season. This guide highlights five 18 x 36 pool covers that balance heat retention, durability, and safety. Ideal buyers include solar enthusiasts, winterizers, busy households with kids or pets, and property managers seeking reliable year-round protection. Below, compare features, best uses, and limitations to help you choose with confidence.
| Product | Best For | Why It Stands Out |
|---|---|---|
| In The Swim Premium Blue 12 Mil | Solar heating fans and long-season users | Thick 12 mil design for heat retention and durability. |
| In The Swim Standard Blue 8 Mil | Budget-friendly solar heating | Lightweight, easy to handle with solid heat gain. |
| VEVOR Inground Safety Cover 18×36 | Full safety with kids/pets | Triple-stitched, high-strength PP with complete hardware kit. |
| Shop Square 18×36 Winter Cover | Extreme cold and debris protection | 7×7 scrim, 4 ft overlap, strong seal seams. |
| CIDNN Inground Safety Mesh & Solid 18×36 | Mesh safety with installation kit | Includes hardware; durable PP with secure anchoring. |
In The Swim Premium 12 Mil Blue Rectangle Solar Cover
Best for maximizing heat gain and overnight heat retention, this 12 mil cover is designed to extend pool seasons for both above-ground and in-ground setups. The thicker material helps reduce heat loss while withstanding routine use around the pool area.
- Heat retention and solar warming to raise water temperature with sunlight.
- Reduces water evaporation, helping lower refills during hot months.
- 12 mil heavy-duty design with wide seams for durability.
Best for: Buyers who want stronger heat retention and durability to maximize solar heating. Choose this if you live in cooler springs or autumns and want longer swimming seasons. Caution: Heavier covers are harder to remove for some users; plan for handling and storage accordingly.
In The Swim Standard Blue 8 Mil Solar Pool Cover
A lighter option that balances cost and performance, this 8 mil cover still provides solar warmth and evaporation reduction. It’s easier to handle for daily use, making it suitable for smaller crews or frequent seasonal swaps.
- Heat retention and solar warming for extended swimming.
- Reduces water evaporation to conserve water and cut refills.
- 8 mil durable design designed for easier handling.
Best for: Buyers seeking a more economical solar cover with practical heat gain. Avoid if you need the maximum durability for rough winters or heavy use seasons.
VEVOR Inground Pool Safety Cover 18′ x 36′
Designed for safety and durability, this green mesh safety cover is built to resist aging and high temperatures with triple-stitched edges. It includes a complete hardware kit and is sized to fit 18 x 36 ft inground pools, making it a strong option for households prioritizing safety.
- Safety-focused cover with a substantial 18×36 fit and center step area.
- Double strapping and triple stitching for long-lasting protection.
- Includes brass anchors, stainless springs, and installation tools.
Best for: Buyers prioritizing pool safety for children and pets. Caution: Ensure proper measurement and install hardware as instructed to guarantee a secure fit.
Shop Square 18×36 Rectangle Winter Pool Cover
This heavy-duty winter cover is engineered for extreme cold and debris protection. A 7 x 7 scrim count and 4 ft overlap help seal out the elements and keep your pool clean for spring reopening.
- Ultimate winter protection with robust scrim and seal seams.
- Extreme cold resistance helps limit snow and debris intrusion.
- Designed for year-round use with durable overlapping seams.
Best for: Buyers in regions with harsh winters needing solid debris control and minimal spring cleanup. Limitation: Heavier weight may require more robust handling during removal.
CIDNN Inground Pool Safety Mesh & Solid 18×36
A versatile safety cover option that combines mesh and solid materials for optimized protection. The included installation tools and hardware simplify setup, and the size fits 18 x 36 ft inground pools with a secure anchoring system.
- Compatible with 18×36 ft inground pools with measurement caution.
- Durable polypropylene fabric with double-strapped, triple-stitched construction.
- Includes complete hardware for straightforward installation.
Best for: Buyers wanting a solid safety solution with a practical installation kit. Caution: Verify exact pool dimensions and anchoring requirements before purchase.
Buying Guide: Pool Covers For 18×36 Pools
- Purpose: Decide between solar longevity, heat gain, debris protection, or safety for children and pets. Solar covers prioritize heat retention; safety covers emphasize containment.
- Material & Thickness: Thicker covers (12 mil) generally offer better heat retention and durability; thinner ones (8 mil) are easier to handle but may wear faster.
- Coverage and Fit: Measure accurately; many models specify a size that runs slightly larger than the pool to ensure full coverage. Overlaps and seams impact durability and debris exclusion.
- Installation: Some covers include hardware kits (anchors, springs, tools) for inground pools. Others are simple solar blankets designed for quick placement.
- Climate Considerations: Regions with cold winters benefit from heavy-duty or winter covers; hot sun regions benefit from heat retention and reduced evaporation.
- Safety Priorities: If children or pets use the pool, prioritize safety covers with robust stitching, tensioning systems, and secure anchoring.
- Maintenance: Look for covers that resist tearing, withstand UV exposure, and are easy to remove and store seasonally.
FAQ
- Q: Which cover best reduces evaporation for an 18×36 pool? A: Solar pool covers with high-foam or thick mil construction and lots of bubbles can significantly reduce evaporation by forming a barrier on the water surface.
- Q: Are safety covers always heavier than solar blankets? A: Generally, safety covers are heavier due to reinforced materials and hardware, but some mesh options are lighter while still offering protection.
- Q: Do I need a safety cover kit for an inground 18×36 pool? A: Many safety covers include hardware, but confirm that anchors and springs are included and compatible with your pool deck material.
- Q: Can I use a solar cover year-round in cold climates? A: Solar covers help during milder seasons; for harsh winters, a dedicated safety or winter cover may be more appropriate.
- Q: How do I measure my pool for a proper cover fit? A: Measure the exact pool dimensions (length and width) and account for any deck overhangs. When in doubt, choose a size slightly larger than your pool.
- Q: Is it okay to mix covers (solar for summer, safety for winter) on the same pool? A: Yes, you can use a solar cover in warmer months and switch to a safety or winter cover during colder periods to protect the pool and keep it clean.