Custom Size 15ft x 21ft x 25.8ft Waterproof Orange Triangle Sun Shade

Our review of this custom size 15' x 21' x 25.8' orange triangle sun shade sail finds it best for homeowners or small businesses who need a heavy-duty, water resistant canopy that blocks sun and lowers temperature quickly. The single biggest reason to buy is the combination of a waterproof polyester with PU coating and substantial UV blockage, which creates a cooler, drier shaded area for patios, carports, gardens and outdoor seating. Installation is straightforward and the reinforced corners feel built to last.

Key Features

• Waterproof construction: The polyester fabric with a PU waterproof coating prevents water and wind from passing through, keeping the area beneath dry during light to moderate rain.
• UV protection: Provides up to 90% blockage of harmful UV rays so shaded spaces stay safer and more comfortable.
• Heat reduction: Lowers the temperature under the shade by up to 15 degrees, which makes outdoor time noticeably cooler on hot days.
• Reinforced edges: Curved edges with dual-layer white webbing add strength and reduce fraying at the seam line for longer service life.
• Stainless steel corners: Heavy-duty D rings are attached to reinforced corners for secure mounting and better wind resistance.
• Three year limited warranty: The included warranty gives buyers confidence in material and workmanship for multiple seasons.

Who It's For

This sun shade sail is ideal for homeowners with patios, carports or small yard areas who want a durable, water resistant canopy that also reduces heat and blocks UV. It suits people who prefer a quick install and the ability to take the sail down seasonally or after storms.

It may not be the right choice for those needing very large custom configurations beyond the triangle shape or for users who require full waterproofing in prolonged heavy downpours; for extreme weather applications a fixed shelter or professional awning system should be considered.

Pros & Cons

Pros

• Quality stitching and reinforced edges improve durability and resistance to wear.
• Blocks a high percentage of UV while reducing ambient temperature under the sail.
• Waterproof PU coating keeps light to moderate rain from seeping through.
• Stainless steel D rings and dual webbing make attachment secure and reliable.

Cons

• Size perception varies among buyers, so confirm measurements carefully before ordering.
• Not intended as a permanent roof replacement in severe, prolonged storms.

Specifications

Shape	Triangle
Size	15' x 21' x 25.8'
Material	Polyester with PU waterproof coating
UV Blockage	Up to 90% (UPF50+)
Edge finish	Curved edges with dual-layer white webbing
Corners	Stainless steel D rings attached to dual webbing
Warranty	3 year limited warranty

Our Verdict

The custom size 15' x 21' x 25.8' triangle shade sail is a practical, economical canopy for patios, carports and yards where UV protection and water resistance matter. It offers solid construction and meaningful heat reduction at a reasonable cost, making it a good value for most homeowners who need a temporary or seasonal shade solution.

Frequently Asked Questions

Is this sail fully waterproof?
The polyester with PU coating is water resistant and prevents water from passing through in light to moderate rain, but it is not a replacement for a permanent roof in heavy prolonged storms.

How strong are the attachment points?
Corners are reinforced with dual-layer webbing and stainless steel D rings to provide secure mounting and better performance in wind.

Will it block sun and heat?
Yes, the fabric blocks up to 90% of harmful UV and can lower the temperature under the shade by up to 15 degrees, making it effective for cooling outdoor spaces.