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Equilateral Triangle Shade Sail, approx. 21′ 7″ × 21′ 7″ × 21′ 7″ drawn to scale over a patio, 2 corners on the house wall and one on a steel post 21′ 7″21′ 7″21′ 7″
Desert SandDrawn to scale · 6′ person for reference

Screen colors are approximate. Request free fabric samples before you order.

Standard shade sail · Made in Phoenix

Equilateral Triangle Shade Sail, approx. 21′ 7″ × 21′ 7″ × 21′ 7″

$815 sail only

Three equal sides and three anchors — two on the house and one post, or three posts. Easy to tension, and it layers well with a second sail. Covers about 202 ft².

Sizes are approximate, measured D-ring to D-ring; allow about 1″ either way.

  • Commercial 95 HDPE shade cloth — breathable, up to 95% UV block (by color)
  • Welded stainless steel D-ring in every corner
  • Sewn perimeter hem pocket for the stainless cable
  • Curved (catenary) edges cut to tension without wrinkles
  • Limited 90-day warranty
1 Color — Desert Sand
2 Hardware
3 Quantity
Subtotal —

Made to order in Phoenix. Ships nationwide or pick up at our shop. Orders are subject to our Terms of Service and Returns Policy: every sail is made to order, so returns are rarely accepted.

Is this the right size?

Where an approx. 21′ 7″ × 21′ 7″ × 21′ 7″ sail fits.

Our large equilateral triangle: two widths of fabric joined by one seam. It spans a patio dining area or a good stretch of yard from two anchors on the house and one post, or from three posts. Plan on two people to hang and tension it.

  • A dining table for six
  • A patio seating group
  • A play area in the yard
  • Paired with a second triangle over a pool edge

For this sail, set the three anchors about 24′ 2″ apart from each other — for example two on the house 24′ 2″ apart and one post 24′ 2″ from each of them (about 20′ 11″ straight out from the wall). Keep the low corner at least 7′ off the ground so people can walk under it, and slope the sail so rain runs off. Covers about 202 ft².

Specifications

Sail details.

Size (D-ring to D-ring)Approx. 21′ 7″ × 21′ 7″ × 21′ 7″ (all three sides equal, 60° corners). Allow about 1″ either way.
Perimeter64′ 9″
Shade areaAbout 202 ft² (flat plane; ground shade changes with sun angle and height)
FabricCommercial 95 by GALE Pacific, knitted HDPE, 22 colors, 10-year manufacturer UV warranty
Fabric layoutTwo widths of 3.0 m (118″) Commercial 95 joined by one seam
CornersWelded stainless steel D-rings with reinforced corner patches
Hardware kit3 × stainless steel turnbuckles (one per corner); 75 ft stainless steel perimeter cable (perimeter 64.8 ft + 15%); 2 × stainless steel cable clamps
WarrantyLimited 90-day warranty on workmanship (seams, hems, D-ring corners)
SKUAU-EQ2107

Other equilateral triangle size: approx. 10′ 5″ × 10′ 5″ × 10′ 5″ · Triangle Shade Sails · All 8 standard sails · Custom sail design tool.

Common questions

Questions about this sail.

Is 21′ 7″ the fabric size or the post spacing?
This is a standard sail, so the size is the finished sail, measured D-ring to D-ring. Sizes are approximate, measured D-ring to D-ring; allow about 1″ either way. Your anchors sit farther out than the sail: it’s patterned for about 10″ of turnbuckle at each corner and stretches about 5% as you tension it. For this sail that means: set the three anchors about 24′ 2″ apart from each other — for example two on the house 24′ 2″ apart and one post 24′ 2″ from each of them (about 20′ 11″ straight out from the wall). The planning guide walks through it.
What is in the hardware kit?
Everything that connects the sail to your anchors: 3 × stainless steel turnbuckles (one per corner), 75 ft stainless steel perimeter cable (perimeter 64.8 ft + 15%), 2 × stainless steel cable clamps. The cable is cut long so you have enough to pull it through the hem pocket, wrap it at the corner and clamp it off. Wall pad eyes and posts are not included — see hardware and structure kits.
Why is a triangle sail flat?
Three points always make a flat plane, so a triangle can’t twist the way a four-corner sail can. Set one corner lower than the other two so rain runs off and the sail doesn’t pond. If you want the sculpted, twisted look, choose a square or rectangle sail.
Why this size?
They’re the largest sizes that cut from a 3.0 m (118″) wide roll of Commercial 95 with little waste. Every edge takes a 0.5″ hem plus a 2.5″ cable pocket (3″ per edge), and a seam takes 2.5″. The small square, the small equilateral triangle and both rectangles are a single width of fabric with no seam; the large square and the large equilateral triangle are two widths joined by one seam. This one is two widths with one seam. Need a different size? A custom sail is made to any size.
What does the warranty cover?
Every standard sail carries a limited 90-day warranty on our workmanship — seams, hems and the welded D-ring corners — starting on the date it’s delivered or picked up. The Commercial 95 fabric also carries GALE Pacific’s 10-year UV degradation warranty. Damage from wind or storms beyond the sail’s limits, over-tensioning, weak anchors or improper installation isn’t covered. Full terms: Terms of Service.
How long until it ships?
Each sail is cut and sewn to order in Phoenix in the color you pick. Production takes 7–10 business days once material arrives in our shop, then it ships FedEx Ground — the cart shows the exact shipping price and transit time for your address. Need it sooner? Contact us to expedite production and shipping.
Should I take the sail down in a storm?
Yes. Shade sails are not rated for monsoon winds. Loosen the turnbuckles and take the sail down when a storm warning is issued, and before you leave for a long trip in monsoon season.

Start a shade project

Not quite the right size?

A custom sail is built to your finished size or fit to your exact attachment points, and usually tensions better than forcing a standard size to fit.

Phone(480) 399-7516
Emailinfo@americanupholstery.us
Shop4970 N 7th Ave, Phoenix, AZ 85013
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