Sun Shade Sail 11ft x 18ft x 18ft Triangle Sunshade - 95% UV Block

In this review the SUNN Y GUARD triangular sun shade sail is presented as a practical, budget-friendly way to add reliable sun protection to yards, patios, pools and RV awnings. The bottom line: this shade sail is best for homeowners and renters who want a durable, breathable canopy that blocks up to 95% of UV rays without the cost or complexity of a permanent awning. It installs with simple rope and D-ring attachments and comes in a high density polyethylene fabric that feels rugged yet allows air flow for cooling on hot days.

Key Features

• UV Protection: High density polyethylene fabric blocks up to 95% of harmful UV rays to protect skin and outdoor furnishings.
• Breathable Cooling: The knitted, non-spliced fabric allows air to pass through so shaded areas feel noticeably cooler than under solid canopies.
• Custom Fit Options: The brand offers custom sized sails so you can match unusual mounting points or specific outdoor layouts.
• Durable Construction: Made of 185 GSM HDPE material with reinforced D-rings and stitched edges for long-term outdoor use.
• Easy Installation: Ships with 3 to 4 thickened ropes and clear measurement guidance so most DIYers can mount it without professional help.
• Made in USA & Warranty: The product is manufactured in the United States and includes a five year warranty under normal use and weather.

Who It's For

This shade sail suits homeowners, renters, and outdoor venue operators who want an inexpensive, effective way to add shade to patios, decks, pools, play areas, and carports. It is particularly useful for people in hot, sunny climates who need high UV protection and prefer a low-maintenance, breathable fabric that minimizes heat buildup.

It is less suited for those who need a fully waterproof shelter or a rigid, permanent structure; if you require complete rain protection or a mechanically retractable awning, consider a different product that explicitly advertises waterproofing and fixed hardware systems.

Pros & Cons

Pros

• Excellent sun protection with a stated UV block rate of up to 95% for skin and furniture safety.
• Breathable HDPE fabric reduces temperature beneath the sail and resists wind stress better than solid tarps.
• Custom sizing and a five year warranty provide flexibility and long-term assurance.
• Included ropes and D-rings make for straightforward DIY installation in most backyard settings.

Cons

• Not advertised as waterproof, so it will not keep heavy rain from passing through.
• For highest durability in stormy areas, customers should purchase specialized stainless steel accessories separately.

Specifications

Material	High density polyethylene (185 GSM)
Shape	Triangle (11ft x 18ft x 18ft)
UV Block Rate	Up to 95%
Accessories Included	3 ropes (triangle); 4 ropes for square/right triangle
Origin	Made in USA
Warranty	5 years under normal use and weather

Our Verdict

The SUNN Y GUARD triangle sun shade sail is a sensible value choice for people who need substantial UV protection and improved comfort outdoors without a permanent installation. With breathable 185 GSM HDPE fabric, custom sizing options and a five year warranty, it strikes a good balance of durability, ease of installation and cost for most patios, pools and RV awnings.

Frequently Asked Questions

Is this sail waterproof?
Answer. The fabric is breathable HDPE and allows water to pass through, so it is not a waterproof shelter and is intended mainly for sun and UV protection.

What hardware is included?
Answer. The package includes 3 ropes for triangle sails (4 for square/right triangle); for longer-term installs stainless steel sunshade accessories are recommended.

Can I order a custom size?
Answer. Yes, SUNNY GUARD offers custom sized shade sails to fit specific outdoor spaces and mounting layouts.