ShadeMart 7 ft x 20 ft Blue Waterproof Shade Sail Rectangle - Cooler

Our review of the ShadeMart 7 ft x 20 ft Blue Waterproof Shade Sail finds it best suited for homeowners who want a simple, heavy-duty canopy to reduce sun and light rain on patios, carports, or gardens. The single biggest reason to buy is the combination of a PU waterproof coating and a 95% UV block, which together cut surface temperatures and keep the area noticeably cooler. Installation requires some attention to tension and hardware selection, but once set up this sail delivers reliable shade and strong seams at a reasonable price.

Key Features

• Waterproof fabric: Polyester with a PU coating repels light rain so the covered area stays dry and protected during showers.
• High UV protection: The canopy blocks up to 95% of harmful UV, helping to reduce temperature on the shaded surface by up to 15 degree compared with no shade.
• Reinforced edges: Curved edges and dual layers of white webbing under the fabric increase tear resistance and distribute tension at installation points.
• Stainless steel corners: Heavy duty D rings sewn into reinforced corners provide secure anchor points for long term use.
• Custom sizing available: ShadeMart offers customized size options with a typical two business day turnaround for made-to-order sails.
• Portable canopy alternative: The sail is compact and straightforward to remove for seasonal storage or repositioning.

Who It's For

The ShadeMart waterproof shade sail is ideal for patio and backyard owners who need an affordable canopy that blocks sun and stands up to light rain. It works well for shading seating areas, small carports, and garden spaces where temperature reduction and UV protection matter most.

Those who need a fully stormproof awning or expect heavy, ponding rain should look elsewhere or pair the sail with a proper drainage plan and heavy-duty hardware, since the product can withstand light rain but is not guaranteed against water accumulation or storm damage.

Pros & Cons

Pros

• Strong build quality with heavy stitching and reinforced corners that customers praise.
• Effective shade and temperature reduction, often reported as a noticeable drop in surface heat.
• Easy to install and remove for seasonal use when paired with the correct hardware kit.
• Value for money when compared with rigid canopies and umbrellas.

Cons

• Not designed for heavy storms; water can accumulate if the sail is not installed with proper tension and slope.
• Size and color perceptions vary among buyers, so double-check measurements before ordering.

Specifications

Our Verdict

The ShadeMart 7 ft x 20 ft waterproof shade sail is a practical, cost-effective choice for patio and garden shade where UV protection and light-rain resistance matter. It offers robust construction, clear cooling benefits, and easy seasonal removal, making it a solid value for most homeowners who install it with proper tension and suitable anchors.

Frequently Asked Questions

Can this shade sail handle heavy rain?
The sail has a PU waterproof coating and withstands light rain, but it is not designed for heavy storms; avoid water accumulation by installing with slope and tension.

Is installation hardware included?
No, an installation kit is not included; ShadeMart recommends using their hardware kit for a simple and secure installation.

How long does custom sizing take?
Customized sizes are available and usually take two business days to prepare before shipping.