Create a shaded outdoor seating area with the Royal Shade square waterproof shade sail. Made from 220 GSM HDPE fabric with a PU waterproof coating, it offers a square layout for patio, deck and garden projects.
Compare 9.5 x 9.5 ft and 14 x 14 ft sizes, then select your preferred color. Plan four corner mounting points and check the dimensions against your available space. Request a waterproof shade sail fabric sample to compare colors before buying.
Allow space for hardware and tensioning between the sail and its supports. Install at a slope and keep the fabric taut so rainwater can drain rather than collect. Follow the rectangle and square shade sail installation guide for setup details.
| Beaufort Scale | Approx. Wind Speed (mph) | Recommendations for Shade Sail |
| Force 4–6 (Moderate to Strong Breeze) | 13–31 mph | Safe for normal use. The 220 GSM virgin HDPE fabric and reinforced structure ensure stable performance. |
| Force 7 (High Wind / Near Gale) | 32–38 mph | Within the safe range. However, we recommend inspecting all anchor points and hardware before and after windy conditions to ensure they remain secure. |
| Force 8(Gale) | 39–46 mph | Approaching the design limit. This wind force is already destructive. We strongly advise taking down the sail in advance to prevent potential damage. |
| Force 9 and above (Severe Gale / Storm) | > 47 mph | Must be removed beforehand. Even with reinforced design, no shade sail can guarantee safety under extreme storm conditions. |
Explore custom waterproof shade sails or compare the full Royal Shade waterproof shade sail collection. Contact (855) 678-9123 for product help and current custom-order processing times.
If the size you need is not available, please click Custom Size
Shipping Policy
Thank you for choosing Royal Shade USA for your outdoor solutions. We are located in California, United States, and offer the following shipping services:
Domestic Shipping (USA)
International Shipping
Order Processing
Returns and Exchanges
We strive to ensure your shopping experience at Royal Shade USA is seamless and efficient. For further details or inquiries regarding shipping, please contact our customer service team.
This policy is designed to provide clear information on shipping options, costs, processing times, and support channels for customers of Royal Shade USA.
the color I chose is the perfect earth tone. it has to be the most neutral color I've ever seen. It really blends well with the landscape. (I chose beige). If you want a color that is barely there, this is it. Also, it is definitely waterproof as I hoped. It's a fine sun shade that can double as a tarp but my favorite thing about is the color. It does not take the focal point away from my yard features nor stand out. Very pleased.
I have a number of traditional sun sails but sometimes a waterproof awning is?better and this is it.
The fabric is lighter than the other sun sail cloths but pretty sturdy and finished just like a sun sail with strongly stitched edges and strongly stitched D-rings at each corner.
I used standard sun sail hardware and it?was easy to erect.
Rain does indeed run off it, it is holding up well and I like the color.
Excellent quality and fast delivery. It gives my happy place extra shade in the morning and late afternoon. I just need more furniture!
This is a nice sunshade. It does not block the sun completely. It is good quality and works perfect for what we needed.
If you have any questions anytime, Call us at +1 (855) 678-9123 Monday - Friday: 8:30 am to 5:30 pm.