ShadeMart 13 ft x 18 ft Brown Waterproof Shade Sail - Reliable Patio

In this review the ShadeMart 13 ft x 18 ft brown waterproof shade sail is evaluated for homeowners and renters who want an affordable, heavy-duty canopy for patios, carports and gardens. The biggest reason to consider it is its combination of a PU waterproof coating and a UV block that claims up to 95% UV blockage, which delivers noticeably cooler patio temperatures and dependable sun protection for everyday outdoor use.

Key Features

• Waterproof fabric: The polyester with PU coating resists light rain so outdoor spaces stay drier during brief showers.
• High UV protection: The fabric blocks up to 95% of harmful UV, helping reduce surface temperatures by up to 15 degrees compared with no shade.
• Reinforced edges: Curved edges with dual-layer white webbing increase durability and reduce edge fraying under tension.
• Stainless steel corners: D rings at each corner are attached to the reinforced webbing for secure anchoring when properly installed.
• Custom sizes available: The product can be ordered in custom dimensions and usually ships after about two business days.
• Easy to install: The sail is compact and straightforward to fit when using proper hardware and maintaining maximum tension.

Who It's For

This shade sail is best for homeowners, renters, and small business owners who need a cost-effective canopy for a patio, small carport, or garden seating area and want strong sun protection with some water resistance. It suits DIYers who can provide or buy a separate installation kit and who understand the need to tension the sail to avoid sagging and water accumulation.

Those who need full waterproofing for heavy storms, or who cannot mount stable anchor points, should look elsewhere. For long-term, permanent roofing or very large unsupported spans a dedicated hard canopy or professional installation will be a better choice.

Pros & Cons

Pros

• Good build quality with strong stitching and reinforced corner loops that customers consistently praised.
• Effective shade and temperature reduction thanks to the high UV block, making outdoor areas more comfortable.
• Value for money: the sail balances performance and price for everyday sun protection.
• Relatively easy to install when paired with a proper hardware kit and correct tensioning.

Cons

• Not fully stormproof: it can withstand light rain but may suffer water accumulation or tearing in strong storms if not removed or drained.
• Size and color expectations vary slightly; some buyers found the sail smaller than pictured and color accuracy was mixed.

Specifications

Brand	ShadeMart
Dimensions	13 ft x 18 ft
Material	Polyester with PU waterproof coating
UV Blockage	Up to 95%
Edges	Curved, dual-layer white webbing reinforced
Corners	Stainless steel D rings attached to webbing
Installation	Hardware kit not included; custom size options available

Our Verdict

The ShadeMart 13 ft x 18 ft waterproof shade sail is a practical, good-value option for anyone needing reliable sun protection and light rain resistance for patios, gardens, or carports. It is best when installed with proper hardware and tensioned correctly; buyers seeking a low-cost, effective shade solution who understand its weather limitations will find it a smart purchase.

Frequently Asked Questions

Is this shade sail waterproof?
The fabric has a PU waterproof coating that withstands light rain but is not intended as a permanent solution in heavy storms.

Does it block UV rays?
Yes, the sail is designed to block up to 95% of harmful UV to reduce temperature on shaded surfaces.

Does the package include installation hardware?
No, installation hardware is not included; the manufacturer recommends using a ShadeMart hardware kit or similar strong fittings for secure installation.