ShadeMart 14 ft x 21 ft Brown Rectangle Shade Sail - Cool, UV

In this review of the ShadeMart 14 ft x 21 ft Brown Rectangle Shade Sail the bottom line is simple: this heavy-duty woven fabric canopy is for anyone who wants reliable, breathable sun protection for a patio, carport or poolside area without worrying about trapped moisture. The reviewer found the sail blocks a large portion of sunlight, noticeably cools the space beneath it, and installs with basic hardware; it is a well-made, value-oriented option when a custom size or sturdy corner fittings matter.

Key Features

• Woven HDPE fabric: The high density polyethylene weave delivers long-lasting shade and resists stretching so the sail keeps its shape season after season.
• Stainless steel D rings: Reinforced corner D rings attached to heavy duty webbing provide secure anchor points that tolerate tension and frequent use.
• Water and air permeable: Breathable construction allows rain and wind to pass through, preventing pooling and reducing strain on attachment points.
• UV resistant: The fabric blocks up to 95% of harmful UV rays and lowers surface temperatures, improving comfort under the canopy.
• Custom sizing available: Multiple sizes and customization let you match specific outdoor layouts when a standard sail would not fit.
• Versatile mounting: Works with common hardware kits so the sail can attach to poles, trees, walls or roofs for many outdoor uses.

Who It's For

This shade sail is aimed at homeowners and renters who need a durable, breathable sun canopy for a patio, carport, pergola or pool area and who appreciate built-in stainless steel fittings and heavy webbing. It is also a good pick for DIY installers who want a product that pairs with standard mounting hardware and can be cut to custom dimensions.

People who need a fully waterproof canopy or expect exact color matching should look elsewhere; the fabric is intentionally permeable and customers report mixed experiences with color accuracy and occasional size variance from manual measurement.

Pros & Cons

Pros

• Strong construction and reinforced corners give confidence when tensioning the sail.
• Breathable fabric reduces heat beneath the canopy while allowing rain to pass through.
• Blocks most UV rays and noticeably cools patio surfaces, improving outdoor comfort.
• Custom size options make it adaptable to irregular spaces.

Cons

• Not waterproof, so it will not keep an area dry in heavy rain.
• Size and color may vary slightly due to manual measurement and dye differences.

Specifications

Brand	ShadeMart
Shape	Rectangle
Size	14 ft x 21 ft
Material	Woven HDPE (high density polyethylene)
Fittings	Stainless steel D rings with heavy duty webbing
Function	Water and air permeable; UV resistant
Lead time for custom	3 to 7 business days

Our Verdict

The ShadeMart 14 ft x 21 ft Brown Rectangle Shade Sail is a practical, well-built option for anyone wanting breathable sun protection with strong corner fittings and custom sizing. It is good value for patios and carports where temperature reduction and UV blocking matter, though buyers seeking a waterproof cover or perfect color match should account for the fabric's permeable nature and manual size variance.

Frequently Asked Questions

Is this shade sail waterproof?
The fabric is water permeable and breathable, so it will not be fully waterproof and allows water to pass through.

How much UV protection does it provide?
The sail is UV resistant and can block up to 95% of harmful UV rays to lower surface temperatures.

Can I get a custom size?
Yes, custom sizes are available and will take about 3 to 7 business days to make; measure your space carefully before ordering.