Sunbrella Right Angled Triangle Shade Sail

Name: Sunbrella Right Angled Triangle Shade Sail
Brand: BackyardCity.com
SKU: BYC-SSSA
Price: 324.50 USD
Availability: InStock

Marine Grade Sunbrella provides Near Waterproof Sail

SKU: BYC-SSSA
BRAND: BackyardCity.com
MPN: BYC-SSSA

Retail Price: $559.99
Our Price: $324.50
You Save $235.49 or 42.05%

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Size (AxB)

Perimeter

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Questions & Answers about Right Angled Triangle Shade Sail Sunbrella

What is a shade sail, and how does it work?

A shade sail is a modern, tensioned fabric canopy that provides effective sun protection for any outdoor space. Inspired by a ship's sail, it is made from durable, UV-resistant materials like high-density polyethylene (HDPE) or acrylic canvas. The sail is anchored, with about 150lbs of tension, at its corners to poles, walls, or other sturdy structures, creating a stable and wind-resistant cover. Known for their aesthetic appeal and versatility, shade sails are a popular solution for creating comfortable outdoor recreational environments in both residential and commercial settings, including patios, decks, pools, playgrounds, courtyards and dining areas.
(Source: Enhanced by BackyardCity.com)

Ask a Question about Sunbrella Right Angled Triangle Shade Sail.

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How the Sunbrella Right Angle Triangle Shade Sails is expected to Ship.

Features of Sunbrella Right Angle Triangle Shade Sails

Sunbrella Awing / Marine Grade Acrylic Canvas, 9.5oz - Solution-dyed acrylic fibers mean the color goes all the way through each thread (not just on the surface).

Superior resistance from fading, cracking, and fabric deterioration caused by sun exposure.

Resists mold & mildew

Cleans easily with mild soap and water.

Blocks up to 98% of harmful UV rays.

Stainless Steel "D" rings in the corners.

1.5inches UV inhibited webbing in perimeter, doubled up in each corner for extra strength

Sides are not straight. They curve inwards about 6-10% so it will help eliminate fabric wrinkles, sagging and even flapping when properly tensioned

9 Stock Colors from which to choose

Near Waterproof - Water may seep thru the seams during prolonged rains - Will pool water if not on at least a 20 degree slope

10-Year UV warranty on fabric - 2 years FULL!

MADE TO ORDER - No Returns or Refunds or cancellations once we start cutting.

Sunbrella Right Angle Triangle Shade Sails Product Reviews

Currently there are no Product Reviews at this time.

Right Angle Triangle Shade Sails with Sunbrella Marine Fabric - 9 Stocked Colors for 2026

Need to shade a corner of your Courtyard, Pool, Patio, Deck or Dog-run? Right Angle Triangle Shade Sails, made with Sunbrella Canvas, is perfect for the job.. 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 office.

These Right Angled Triangle Shade Sails feature Marine / Awning Grade Sunbrella, a breathable fabric to keep you cooler and more comfortable in hot weather. These 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 has a 10 year limited warranty, is unaffected by moisture and natural temperature extremes. Sunbrella fabric is fade and water resistant. The near waterproof fabric also resists stains, mildew and rot. The perimeter of each sail is contains seatbelt type webbing for increased strength & durability. 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.

View a Right Angle Triangle Shade Sail for Ordering

Viewing the Triangle sides

How to View your Right Angled Shade Sail for Measuring or Ordering

In any right angled triangle, there is one angle that is 90 degrees, just like the inside corner of most any room in a house. If you put yourself behind that corner and looked down on the triangle (See image to right), the A dimension would be to the right side of the 90 degree angle, and the B dimension would be the left side. C is always the longest side of a right angle triangle and will be directly opposite of the 90 degree Right Angle. We only need the A and B dimension as we can automatically calculate the hypotenuse C dimension.

CAUTION: Watch Out for Skinny Corners!

If your shade sail is very long on one side and narrow on the other, the corner where the two long sides meet will get extremely sharp and pointy.

Because the edges of the sail curve inward to keep fabric taut when tensioned, those two long curved sides merge together early. This squeezes the main fabric down into a thin, about 2-inch wide strap near the tip - meaning less shade fabric and a longer narrow strap as Side B gets closer to twice the length of Side A.

Triangle Skinny Corner of two long sides — Narrow Triangle with Strappy Corner

When sides A and B are closer to same length: The curved edges meet right near the corner, giving you maximum shade coverage.
When side B is much longer than side A: Creates a long narrow corner and the curved edges meet much earlier, making the skinny strap stretch farther back into the sail. Keep this in mind so you are not surprised when receiving your shade sail.

To the left is how a right angled shade sail corner may appear as the the B dimension approaches twice the length of the A dimension. The inward curve of the two long sides makes the curved edges converge quickly. And here is an extreme example of Skinny Triangle Corners where two long sides exceeds twice that of the short side.

Please note that all Sunbrella shade sails are made to order and therefore these are NOT returnable. The dimensions supplied are for the finished sails dimension, corner to corner, D-ring to D-ring along a side. Your minimum mounting point dimensions should be the length of the sail plus the length of your mounting hardware, plus 5% of the length of the sail for fabric stretch. This ensures you have enough space for your mounting/tensioning hardware (ours is ~11 inches) and the fabric stretch (~5% of the length of the side) of the sail.

EXAMPLE: 20ft side of sail (240 inches), would require that the mounting points be at least 263 inches apart at a minimum. 5% of 240 inches is 12 inches, add that to 11inches and you get 23 inches + the length of the side of 240in equals 263 inches. Easy right?

Note: Sunbrella material is water resistant, near waterproof, fabric. it MUST be mounted at an angle of at least 20 degrees to allow water run off.

Right Angled Triangle Shade Sail Priced Sizes - Sunbrella
Size	Price	SqFt*	Max Pull**
A=6ft x B=6ft	$324.50	18	174
A=6ft x B=7ft	$324.50	21	203
A=6ft x B=8ft	$324.50	24	232
A=6ft x B=9ft	$324.50	27	261
A=6ft x B=10ft	$324.50	30	290
A=6ft x B=11ft	$324.50	33	319
A=7ft x B=6ft	$324.50	21	203
A=7ft x B=7ft	$324.50	25	242
A=7ft x B=8ft	$324.50	28	271
A=7ft x B=9ft	$324.50	32	309
A=7ft x B=10ft	$324.50	35	338
A=7ft x B=11ft	$324.50	39	377
A=7ft x B=12ft	$324.50	42	406
A=7ft x B=13ft	$324.50	46	445
A=8ft x B=6ft	$324.50	24	232
A=8ft x B=7ft	$324.50	28	271
A=8ft x B=8ft	$324.50	32	309
A=8ft x B=9ft	$324.50	36	348
A=8ft x B=10ft	$324.50	40	387
A=8ft x B=11ft	$324.50	44	425
A=8ft x B=12ft	$324.50	48	464
A=8ft x B=13ft	$324.50	52	503
A=8ft x B=14ft	$365.80	56	541
A=8ft x B=15ft	$389.40	60	580
A=9ft x B=6ft	$324.50	27	261
A=9ft x B=7ft	$324.50	32	309
A=9ft x B=8ft	$324.50	36	348
A=9ft x B=9ft	$324.50	41	396
A=9ft x B=10ft	$324.50	45	435
A=9ft x B=11ft	$324.50	50	483
A=9ft x B=12ft	$324.50	54	522
A=9ft x B=13ft	$383.50	59	570
A=9ft x B=14ft	$407.10	63	609
A=9ft x B=15ft	$442.50	68	657
A=9ft x B=16ft	$466.10	72	696
A=9ft x B=17ft	$501.50	77	744
A=10ft x B=7ft	$324.50	35	338
A=10ft x B=7ft	$324.50	35	338
A=10ft x B=8ft	$324.50	40	387
A=10ft x B=9ft	$324.50	45	435
A=10ft x B=10ft	$324.50	50	483
A=10ft x B=11ft	$359.90	55	532
A=10ft x B=12ft	$389.40	60	580
A=10ft x B=13ft	$424.80	65	628
A=10ft x B=14ft	$454.30	70	677
A=10ft x B=15ft	$489.70	75	725
A=10ft x B=16ft	$519.20	80	773
A=10ft x B=17ft	$554.60	85	822
A=10ft x B=18ft	$584.10	90	870
A=10ft x B=19ft	$619.50	95	918
A=11ft x B=6ft	$324.50	33	319
A=11ft x B=7ft	$324.50	39	377
A=11ft x B=8ft	$324.50	44	425
A=11ft x B=9ft	$324.50	50	483
A=11ft x B=10ft	$359.90	55	532
A=11ft x B=11ft	$395.30	61	590
A=11ft x B=12ft	$430.70	66	638
A=11ft x B=13ft	$466.10	72	696
A=11ft x B=14ft	$501.50	77	744
A=11ft x B=15ft	$536.90	83	802
A=11ft x B=16ft	$572.30	88	851
A=11ft x B=17ft	$607.70	94	909
A=11ft x B=18ft	$643.10	99	957
A=11ft x B=19ft	$684.40	105	1015
A=11ft x B=20ft	$713.90	110	1063
A=11ft x B=21ft	$755.20	116	1121
A=12ft x B=7ft	$324.50	42	406
A=12ft x B=8ft	$324.50	48	464
A=12ft x B=9ft	$324.50	54	522
A=12ft x B=10ft	$389.40	60	580
A=12ft x B=11ft	$430.70	66	638
A=12ft x B=12ft	$466.10	72	696
A=12ft x B=13ft	$507.40	78	754
A=12ft x B=14ft	$542.80	84	812
A=12ft x B=15ft	$584.10	90	870
A=12ft x B=16ft	$625.40	96	928
A=12ft x B=17ft	$660.80	102	986
A=12ft x B=18ft	$702.10	108	1044
A=12ft x B=19ft	$737.50	114	1102
A=12ft x B=20ft	$778.80	120	1160
A=12ft x B=21ft	$820.10	126	1218
A=12ft x B=22ft	$855.50	132	1276
A=12ft x B=23ft	$896.80	138	1334
A=13ft x B=7ft	$324.50	46	445
A=13ft x B=8ft	$324.50	52	503
A=13ft x B=9ft	$383.50	59	570
A=13ft x B=10ft	$424.80	65	628
A=13ft x B=11ft	$466.10	72	696
A=13ft x B=12ft	$507.40	78	754
A=13ft x B=13ft	$554.60	85	822
A=13ft x B=14ft	$590.00	91	880
A=13ft x B=15ft	$637.20	98	947
A=13ft x B=16ft	$672.60	104	1005
A=13ft x B=17ft	$719.80	111	1073
A=13ft x B=18ft	$761.10	117	1131
A=13ft x B=19ft	$802.40	124	1199
A=13ft x B=20ft	$843.70	130	1257
A=13ft x B=21ft	$890.90	137	1324
A=13ft x B=22ft	$926.30	143	1382
A=13ft x B=23ft	$973.50	150	1450
A=13ft x B=24ft	$1014.80	156	1508
A=13ft x B=25ft	$1056.10	163	1576
A=14ft x B=8ft	$365.80	56	541
A=14ft x B=9ft	$407.10	63	609
A=14ft x B=10ft	$454.30	70	677
A=14ft x B=11ft	$501.50	77	744
A=14ft x B=12ft	$542.80	84	812
A=14ft x B=13ft	$590.00	91	880
A=14ft x B=14ft	$637.20	98	947
A=14ft x B=15ft	$684.40	105	1015
A=14ft x B=16ft	$725.70	112	1083
A=14ft x B=17ft	$772.90	119	1150
A=14ft x B=18ft	$820.10	126	1218
A=14ft x B=19ft	$861.40	133	1286
A=14ft x B=20ft	$908.60	140	1353
A=14ft x B=21ft	$955.80	147	1421
A=14ft x B=22ft	$997.10	154	1489
A=14ft x B=23ft	$1044.30	161	1556
A=14ft x B=24ft	$1091.50	168	1624
A=14ft x B=25ft	$1138.70	175	1692
A=14ft x B=26ft	$1180.00	182	1759
A=15ft x B=8ft	$389.40	60	580
A=15ft x B=9ft	$442.50	68	657
A=15ft x B=10ft	$489.70	75	725
A=15ft x B=11ft	$536.90	83	802
A=15ft x B=12ft	$584.10	90	870
A=15ft x B=13ft	$637.20	98	947
A=15ft x B=14ft	$684.40	105	1015
A=15ft x B=15ft	$731.60	113	1092
A=15ft x B=16ft	$778.80	120	1160
A=15ft x B=17ft	$831.90	128	1237
A=15ft x B=18ft	$879.10	135	1305
A=15ft x B=19ft	$926.30	143	1382
A=15ft x B=20ft	$973.50	150	1450
A=15ft x B=21ft	$1026.60	158	1527
A=15ft x B=22ft	$1073.80	165	1595
A=15ft x B=23ft	$1121.00	173	1672
A=15ft x B=24ft	$1168.20	180	1740
A=16ft x B=9ft	$466.10	72	696
A=16ft x B=10ft	$519.20	80	773
A=16ft x B=11ft	$572.30	88	851
A=16ft x B=12ft	$625.40	96	928
A=16ft x B=13ft	$672.60	104	1005
A=16ft x B=14ft	$725.70	112	1083
A=16ft x B=15ft	$778.80	120	1160
A=16ft x B=16ft	$831.90	128	1237
A=16ft x B=17ft	$885.00	136	1315
A=16ft x B=18ft	$932.20	144	1392
A=16ft x B=19ft	$985.30	152	1469
A=16ft x B=20ft	$1038.40	160	1547
A=16ft x B=21ft	$1091.50	168	1624
A=16ft x B=22ft	$1144.60	176	1701
A=16ft x B=23ft	$1191.80	184	1779
A=17ft x B=9ft	$501.50	77	744
A=17ft x B=10ft	$554.60	85	822
A=17ft x B=11ft	$607.70	94	909
A=17ft x B=12ft	$660.80	102	986
A=17ft x B=13ft	$719.80	111	1073
A=17ft x B=14ft	$772.90	119	1150
A=17ft x B=15ft	$831.90	128	1237
A=17ft x B=16ft	$885.00	136	1315
A=17ft x B=17ft	$944.00	145	1402
A=17ft x B=18ft	$991.20	153	1479
A=17ft x B=19ft	$1050.20	162	1566
A=17ft x B=20ft	$1103.30	170	1643
A=17ft x B=21ft	$1162.30	179	1730
A=18ft x B=10ft	$584.10	90	870
A=18ft x B=11ft	$643.10	99	957
A=18ft x B=12ft	$702.10	108	1044
A=18ft x B=13ft	$761.10	117	1131
A=18ft x B=14ft	$820.10	126	1218
A=18ft x B=15ft	$879.10	135	1305
A=18ft x B=16ft	$932.20	144	1392
A=18ft x B=17ft	$991.20	153	1479
A=18ft x B=18ft	$1050.20	162	1566
A=18ft x B=19ft	$1109.20	171	1653
A=18ft x B=20ft	$1168.20	180	1740
A=19ft x B=10ft	$619.50	95	918
A=19ft x B=11ft	$684.40	105	1015
A=19ft x B=12ft	$737.50	114	1102
A=19ft x B=13ft	$802.40	124	1199
A=19ft x B=14ft	$861.40	133	1286
A=19ft x B=15ft	$926.30	143	1382
A=19ft x B=16ft	$985.30	152	1469
A=19ft x B=17ft	$1050.20	162	1566
A=19ft x B=18ft	$1109.20	171	1653
A=19ft x B=19ft	$1174.10	181	1750
A=20ft x B=11ft	$713.90	110	1063
A=20ft x B=12ft	$778.80	120	1160
A=20ft x B=13ft	$843.70	130	1257
A=20ft x B=14ft	$908.60	140	1353
A=20ft x B=15ft	$973.50	150	1450
A=20ft x B=16ft	$1038.40	160	1547
A=20ft x B=17ft	$1103.30	170	1643
A=20ft x B=18ft	$1168.20	180	1740
A=21ft x B=11ft	$755.20	116	1121
A=21ft x B=12ft	$820.10	126	1218
A=21ft x B=13ft	$890.90	137	1324
A=21ft x B=14ft	$955.80	147	1421
A=21ft x B=15ft	$1026.60	158	1527
A=21ft x B=16ft	$1091.50	168	1624
A=21ft x B=17ft	$1162.30	179	1730
A=22ft x B=12ft	$855.50	132	1276
A=22ft x B=13ft	$926.30	143	1382
A=22ft x B=14ft	$997.10	154	1489
A=22ft x B=15ft	$1073.80	165	1595
A=22ft x B=16ft	$1144.60	176	1701
* Square foot area of triangle shape. Inward curves of each side will reduce actual SqFt of shade. ** Estimated Max Pull per corner in a 90mph wind gust

Due to manufacturing tolerances and fabric stretch, sail dimensions may vary 1.5" plus or minus.

Sunbrella Right Angled Triangle Shade Sail Colors - In Stock
Toast 4628	Forest Green 4637	Pacific Blue 4601
Natural White 4604	Taupe 4648	Jockey Red 4603
Beige 4620	Terra-Cotta 4622	Sunflower Yellow 4602
Crazing in Sunbrella awning material is a temporary, harmless condition caused by folding or creasing the fabric during manufacturing, shipping, or installation. Read more about What is Crazing?