Custom Size Rainbow Waterproof Sun Shade Sail 11ft x 18ft - Durable

In this review of the ColourTree custom size 11' x 18' rainbow sun shade sail, the bottom line is simple: it is a heavy-duty, waterproof canopy best suited for patios, carports and garden shelters where both UV protection and rain coverage are needed. The reviewer found the sail's standout quality to be its robust 220 GSM pure virgin polyethylene fabric with a waterproof coating and commercial UV treatment, which together provide reliable sun blocking and keep areas dry. Installation is straightforward thanks to premium 316 stainless steel D-rings and reinforced stitched seams, making this a practical choice for homeowners who want long-lasting outdoor shade.

Key Features

• 220 GSM pure fabric: The thick virgin polyethylene material delivers durable protection that resists wear and holds shape under tension.
• Waterproof coating: A sealed layer prevents water from passing through, so patios and carports stay dry during light to moderate rain.
• UV resistant finish: Commercial grade UV treatment enhances longevity and provides strong UPF50 sun protection for shaded areas.
• 316 stainless steel D-rings: Heavy-duty corner hardware makes installation easier and more secure on a variety of anchor points.
• Double reinforced stitching: All edges are finished to reduce tear risk and help the sail withstand wind and pulling tension.
• 3 year limited warranty: The included warranty offers a free replacement if the product fails under the stated terms, adding purchase confidence.

Who It's For

This shade sail is well suited for homeowners and renters who need a reliable, custom-sized canopy for an outdoor seating area, carport, play area or over artificial turf. It is a good match when durability, waterproofing and strong UV blocking are priorities, and when buyers want clear hardware and seam reinforcements for a secure setup.

Those who should look elsewhere include buyers seeking very lightweight, decorative sails for occasional use or people needing a fully enclosed permanent awning system; this product is built as a durable, tensioned shade rather than a decorative curtain or rigid structure.

Pros & Cons

Pros

• High quality 220 GSM virgin fabric gives a substantial feel and long service life.
• Waterproof layer keeps rain out, so covered surfaces remain dry and shaded.
• Stainless steel 316 D-rings and reinforced stitching simplify installation and improve strength.
• Attractive color options reported to hold true and enhance outdoor spaces.

Cons

• As a tensioned sail, it requires proper anchor points and occasional re-tensioning in strong winds.
• The product is a fabric canopy rather than a rigid shelter, so it may not suit users wanting a permanent enclosed structure.

Specifications

Our Verdict

The ColourTree 11' x 18' custom rainbow sun shade sail is a practical, value-oriented choice for anyone needing dependable shade and rain protection without installing a permanent structure. Its thick 220 GSM fabric, waterproof coating and heavy-duty D-rings make it durable and straightforward to install, and the three year warranty adds reassurance. Choose this sail when you want a long-lasting canopy for patios, carports or play areas that balances function with attractive color options.

Frequently Asked Questions

Is this shade sail waterproof?
Yes, it has a waterproof coated layer that prevents water from passing through in regular rain conditions.

What hardware comes with the sail?
Each corner includes a premium grade 316 stainless steel D-ring for attachment; additional anchors or turnbuckles are purchased separately.

Does it block UV rays?
The fabric is finished with commercial grade UV resistant treatment and offers UPF50 level sun protection for shaded areas.