SUNNY GUARD Sun Shade Sail 18ftx20ft Rectangle Brown - UV Block

In this review of the SUNNY GUARD Sun Shade Sail 18'x20' rectangle, the bottom line is simple: this is a practical, budget-friendly shade solution for homeowners who want strong UV protection and breathable coverage over a patio, pool, or play area. The sail blocks up to 95% of harmful UV rays and is made from 100% high density polyethylene, so the most compelling reason to buy is its balance of sun protection, airflow and durability for outdoor living spaces. Installation is straightforward for anyone comfortable with basic hardware and planning.

Key Features

• UV protection: Blocks up to 95% of harmful UV rays to significantly reduce direct sun exposure for people and furniture beneath the sail.
• Breathable fabric: The high density polyethylene material lets air and water pass through, helping reduce heat buildup and avoid water pooling after rain.
• Durable construction: Made from a single sheet of 185GSM HDPE without splicing, which improves longevity and resists tearing under normal weather.
• Customizable size: Available in custom sizes to fit irregular yards or specific mounting layouts for a tailored shade solution.
• Included accessories: Ships with 3-4 pieces of thickened rope to get the sail installed quickly, with specialized stainless steel hardware recommended for longer life.

Who It's For

The SUNNY GUARD shade sail is aimed at homeowners and renters who want an affordable, effective way to shade a backyard, patio, deck, pool area or sandbox without the complexity of a permanent pergola. It is a strong fit for people who value UV protection and airflow over full waterproof coverage.

This sail is less suitable for those who need a fully waterproof canopy or who require a heavy duty, permanent metal structure; customers expecting a rigid, custom-engineered awning may want to consider a different solution. Also, if you lack stable anchor points, plan for additional hardware purchases.

Pros & Cons

Pros

• Effective UV blocking and cooling effect thanks to up to 95% UV protection and breathable material.
• Well-made, reinforced edges and single-sheet HDPE construction improve durability and reduce weak points.
• Easy to install with included ropes and straightforward spacing guidance, making it a quick upgrade for outdoor spaces.
• Custom size option and US manufacturing with a 5 year warranty provide flexibility and confidence.

Cons

• Not fully waterproof; the breathable fabric lets water pass through, so it will not provide complete rain protection.
• For long-term durability in high wind or storm-prone areas, buyers should invest in stainless steel mounting hardware beyond the included ropes.

Specifications

Material	High density polyethylene (185GSM)
Size	18ft x 20ft rectangle (custom sizes available)
UV block rate	Up to 95%
Accessories included	Rope x 3-4 pieces (depending on shape)
Made in	USA
Warranty	5 years under normal use and weather

Our Verdict

The SUNNY GUARD 18'x20' shade sail is a sensible buy for anyone needing strong sun protection and improved comfort outdoors without a large investment. Its breathable, single-sheet HDPE construction and customizable sizing make it versatile for patios, pools and play areas, while the included ropes and five year warranty add value; just plan for upgraded hardware if you are mounting in exposed, high-wind locations.

Frequently Asked Questions

Is this sail waterproof?
Answer. No, the fabric is breathable HDPE and allows water to pass through, so it provides shade and cooling but not full rain protection.

Can I order a custom size?
Answer. Yes, SUNNY GUARD offers custom sized sails to fit specific outdoor spaces; measure with recommended margins for hardware and ropes.

Are mounting accessories included?
Answer. The sail includes 3-4 thickened ropes to help with installation, but stainless steel mounting hardware is recommended for the most durable, long-term installation.