Rt. Angle Triangle Shade Sail - 11ft 6in x 11ft 6in x 16ft
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Rt. Angle Triangle Shade Sail - 11ft 6in x 11ft 6in x 16ft

Shade Protection with Sunbrella® Fabrics



For an economical way to provide the ultimate in sun protection, try a Sunbrella® Shade Sail. Courtyards, pool areas, gardens, children's play areas, car spaces, and even office building areas all benefit from the cool good looks of a Sunbrella Shade Sail. These sails can be mounted to a variety of surfaces and are easy to install. Now you can create a shaded area anywhere around your home or yard.

Sunbrella Shade Sails feature Sunbrella breathable fabric to keep you cooler and more comfortable in hot weather. These sails have a limited 10 year fabric warranty and provide you with a UV protection factor of up to 98%. Shade sails can be mounted to a variety of surfaces and are easy to install. Use a shade sail to create a shaded area anywhere around your home or office. This state of the art material is unaffected by moisture and natural temperature extremes. Sunbrella's solution dyed acrylic fabric is fade and water resistant. The near waterproof fabric also resists stains, mildew, and rot. The perimeter of each sail contains seatbelt type webbing for increased strength and durability and is designed with a gentle cantenary curve inwards towards the center of the sail to control the fabric tension. Each corner has a welded solid marine grade stainless steel attachment ring to aid in attaching to a structurally sound fixing point. Shade sails, when installed properly, do not sag or flap in the wind.

Sunbrella Shade Sails are available in several shapes that include squares, rectangles, equilateral triangles, and right angle triangles. They can be purchased in your choice of eight great colors. Each sail comes with instructions for installation. Sunbrella Shade Sails have to be installed with at least a 20 degree slope to allow water to run off the sail rather than pooling on top. Due to the limited available Sunbrella fabric widths, there will be seams approximately every 40-57 inches.

Determining the amount of Slope/Angle for your Sunbrella Shade Sail

Sunbrella fabric is water resistant, and Shade Sails made from this fabric have to be installed at a 20 degree slope to allow water to run off and not pool on top. Below is a simple equation and example to determine the amount of vertical drop from one attachment point of the sail to the opposite attachment point of the sail to allow water run off. A 20 degree slope can also be seen as a 35% difference between the higher attachment point and low attachment points.

If you have a shade sail that is a 15 foot square the amount of angle/slope will be 5 feet 5 inches. You can determine this slope amount by using the equation: Sail Size x .36 = Amount of Slope

15 Feet x .36 = 5.25 Feet which is about 5 Feet 3 Inches.

Therefore it is best to attach two points of your sail 5 Feet 3 Inches lower than the two higher points to allow water run off.


These sails are made to order and all sales are final. No returns or refunds will be accepted.


Below are the perimeter reinforcement options for the Sunbrella Shade Sails:
Residential Sail Corner with 1.5 inch webbing  Residential Sail Corner with 1.5 inch webbing. Used for normal residential use in sails up to about 325 square feet. 1-1/2 inch webbing is rated at an 1800 pound break strength.

Residential/Commercial Sail Corner with 2 inch webbing  Heavy Residential/Light Commercial Sail with 2 inch UV inhibitive reinforcement webbing. Used for smaller commercial applications and for larger residential use in sails from 325 to 500 square feet. 2 inch webbing is rated at a 5,500 pound break strength.

Light Commercial Sail Corner with 1/8 inch steel cable  Light Commercial Sail with 1/8 inch steel cable reinforcement. Used for smaller commercial applications where a steel cable is required or for residential use. For use in sails up to 325 square feet. 1/8 inch cable has a 400 pound work load strength and a 2,000 pound break strength.
Commercial Sail Corner with 1/4 inch steel cable  Commercial Sail with 1/4 inch steel cable reinforcement. Used for larger commercial applications where a steel cable is required or for larger residential sails. For use in sails 325 square feet or larger. 1/4 inch cable has a 1,400 pound work load and a 6,000 pound break strength.


Click on the images below for a detailed view of the color:




Please note: Hardware is not included with the sail. If you would like to purchase the hardware pack it is available at the bottom of this page.



Features of Rt. Angle Triangle - 11ft 6in x 11ft 6in x 16ft
  • Side A = 11'6" (138 inches)
  • Side B = 11'6" (138 inches)
  • Side C = 16' (192 inches)
  • Made of Sunbrella marine grade awning fabric
  • Stainless steel D rings in each corner
  • 1.5 inch heavy duty webbing sewn into perimeter
  • Approx. 1000lbs / linear foot
  • Water resistant (near water proof)
  • 10 year fabric warranty



  • This item has been discontinued. We apologize for any inconvenience.

    Last Updated: 02/16/2024 12:02 PM - ID:1795