ShadeMart 11 ft x 20 ft Brown Waterproof Shade Sail - Patio Canopy

In this review of the ShadeMart 11' x 20' brown waterproof shade sail, the bottom line is simple: it is a practical, budget-friendly canopy for patios, carports and backyard seating areas that prioritizes solid shade and weather resistance over premium hardware. The sail's waterproof polyester with PU coating and 95% UV block make it a clear choice for homeowners who want noticeable cooling and reliable sun protection without complicated installation. It is best suited to people who can ensure strong anchor points and keep an eye on heavy-weather conditions.

Key Features

• Waterproof fabric: The polyester body with PU coating keeps light rain out and helps prevent water penetration during short showers.
• High UV protection: The sail blocks up to 95% of harmful UV, which helps lower surface temperatures under the canopy by up to about 15 degrees compared with no shade.
• Reinforced edges: Curved edges with dual-layer white webbing improve durability at stress points and reduce tearing when tensioned correctly.
• Stainless steel D rings: Corner D rings are attached to the dual webbing so anchor points are secure when mounted to solid fittings.
• Custom sizing available: ShadeMart offers customized sizes with a typical two business day turnaround for tailored installations.
• Simple care and replacement policy: The fabric is easy to remove for storage, and ShadeMart provides return or replacement support if the sail is unsatisfactory.

Who It's For

The ShadeMart 11' x 20' sail is ideal for homeowners who want a functional, low-cost canopy to shade a patio, carport or small backyard seating area. It works well for people who need temperature reduction and UV protection without hiring a contractor, and for those who can install tensioned anchors or buy the compatible hardware kit.

This sail is less suited to those who live in areas with frequent heavy storms or where snow and standing water are likely, since the fabric is designed to withstand light rain but can be stressed by water pooling or extreme winds. If you need a permanent, heavy-duty awning system, consider a fixed metal or professional installation instead.

Pros & Cons

Pros

• Strong stitching and reinforced corner loops provide reliable durability for routine outdoor use.
• Effective shade and measurable temperature reduction make it useful for patios and vehicle covers.
• Good value for the materials and performance, with an option for custom sizing.
• Relatively easy to install and remove when paired with proper hardware.

Cons

• Not intended for heavy storms; water accumulation or tearing is a realistic limitation if tension is not maintained.
• Installation kit is not included, so buyers must purchase hardware separately for best results.

Specifications

Brand	ShadeMart
Size	11' x 20'
Material	Polyester with PU waterproof coating
UV Protection	Up to 95% UV blockage
Edges	Curved with dual-layer white webbing
Corners	Stainless steel D rings attached to webbing
Custom Sizes	Available; usually ships in 2 business days

Our Verdict

The ShadeMart 11' x 20' waterproof shade sail is a practical, cost-effective option for homeowners who want strong sun protection and easier DIY installation. It delivers solid build quality and real temperature reduction for patios and carports, but buyers should plan proper tensioned mounting and avoid using it as a permanent solution in severe weather.

Frequently Asked Questions

Is the sail fully waterproof?
It is made of polyester with a PU coating and resists light rain, but it is not intended to hold up to heavy storms or standing water without risk of sagging.

Does installation hardware come with the sail?
No, the installation kit is not included; ShadeMart recommends using their hardware kit for a secure and straightforward installation.

Can the sail be custom sized?
Yes, custom sizes are available and typically prepared within two business days.