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AsterOutdoor 16' x 20' Graphite Rectangle Shade Sail1 / 7
Product guide

AsterOutdoor 16' x 20' Graphite Rectangle Shade Sail

Rectangle: AsterOutdoor UV Block Canopy for Patio Backyard is a 16' x 20' graphite shade sail made from polyethylene. Its breathable fabric is claimed to block 95% of UV, but it is not water resistant, so it is intended for shade rather than rain cover.

At a glance

  • Curved sides are claimed to improve pull strength and reduce drooping.
  • Stainless steel D-rings and stitched seams are specified in the listing.
  • Ropes and an instruction sheet are stated to come in the package.
  • The fabric is claimed to let air and light through while providing shade.
Price
$61.84Save 22%

Reference price: $78.99

Price checked: Nov 14, 2026

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Pros and cons

Pros

  • The large rectangular footprint suits shading a patio, deck, garden, or pool area where matching attachment points are available.
  • Breathable fabric can allow airflow and some light through rather than forming a solid cover.
  • Four ropes are listed as included, providing basic attachment material for installation.

Cons

  • It is not water resistant, so it is not a rain shelter.
  • The listing says installation needs a clearance gap for hardware or rope, which adds to the space required beyond the sail dimensions.

Technical specifications

14 specifications
Identity and dimensions
BrandAsterOutdoor
ModelUV Block Canopy for Patio Backyard
Size16' x 20'
ShapeRectangle
ColorGraphite
Weight listed185 g
Materials and protection
Material listedPolyethylene (PE)
Fabric specification100% High Density 185GSM Polyethylene fabric
UV block claimed95% UV block
Water resistance listedNot Water Resistant
Breathable fabricThe fabric is breathable and 95% UV block, allowing air and light to pass through for a more comfortable space.
Installation and care
Rope quantity and lengthFour 5-feet ropes
Installation clearanceLeave an 1.5-2 ft space between the fixing point and the shade sail to fit hardware or rope.
Measurement tolerance±6 inch for each side

What to know before buying

  • The 95% UV-block figure and fabric construction are listing claims, not independent measurements. Use the sail for shade, not as a waterproof cover.

Listing details to confirm

The listing gives two different warranty statements: a 5 year manufacturer warranty in the details and a 2 year warranty under normal weather conditions in the feature text. Its mount type is also inconsistent, described as both installation with fixing points and post mount. Verify the applicable warranty and mounting arrangement for the selected listing. Dimensions are measured D-ring to D-ring, require 1.5-2 ft clearance for hardware or rope, and the fabric may shrink by ±6 inch for each side.

Who is it for?

A good fit for

  • Buyers wanting a large shade sail for a patio, backyard, lawn, garden, deck, or pool area.
  • Installations with suitable fixing points and enough clearance around the sail for attachment hardware or rope.
  • People who prefer breathable shade fabric that allows some air and light through.

Less suited to

  • Anyone needing a waterproof shelter or reliable rain cover.
  • Installations without suitable attachment points or enough room for the stated clearance.
AsterOutdoor 16' x 20' Graphite Rectangle Shade Sail · photo 2
Additional product photo 2

Customer reviews on Amazon

4.4 / 5 · 20,911 ratings
  • 5 stars69%69%
  • 4 stars15%15%
  • 3 stars7%7%
  • 2 stars3%3%
  • 1 star6%6%

Customer feedback highlights perceived good quality, easy installation, effective shade and privacy, and an appealing appearance. Reports about durability and material are mixed, including some reports of corners breaking and differing impressions of the fabric, while value opinions also vary. For a large sail exposed to tension at its corners, those durability concerns matter alongside the listing's stated stitched seams and stainless steel D-rings. The aggregate ratings lean positive overall, but do not establish how this particular sail will hold up in a specific installation.

Positive themes

  • Customers describe the sail as easy to install and effective at providing shade and privacy.
  • Customers also praise its appearance and perceived quality.

Mixed feedback

  • Durability feedback is mixed, including reports of corners breaking.
  • Material impressions and value for money are divided.

Frequently asked questions

Does this shade sail keep out rain?

No. The listing identifies it as not water resistant, so choose it for shade rather than rain protection.

What is stated to be included?

The feature text says the package includes four 5-foot ropes and an instruction sheet.

How much room should installation allow?

The listing says to leave 1.5-2 ft between the sail and fixing point for hardware or rope. It also says the size is measured D-ring to D-ring.

What warranty applies?

The listing is inconsistent: its details state a 5 year manufacturer warranty, while feature text describes a 2 year warranty under normal weather conditions. Confirm the applicable terms before buying.

AsterOutdoor 16' x 20' Graphite Rectangle Shade Sail · photo 3
Additional product photo 3

Alternative options

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