Custom Size 18 x 20 x 26.9 ft Right Triangle Shade Sail - 95% UV Block

In this review the Custom Size 18' x 20' x 26.9' right triangle shade sail is judged as a practical, heavy-duty option for anyone needing tailored sun protection. The biggest reason to consider it is its combination of a true custom fit and robust materials: made from 200 GSM HDPE with reinforced edges and stainless steel D-rings, it blocks up to 95% of UV while remaining water and air permeable for cooler, safer outdoor space.

Key Features

• 95% UV protection: The 200 GSM HDPE fabric blocks most harmful rays, reducing sun exposure for people and pets beneath the sail.
• Temperature reduction: By cutting direct sun, the sail can lower ambient temperature by up to 15 degrees compared to unshaded areas for a noticeably cooler seating area.
• Custom sizing: Measurements are taken from D-ring to D-ring so the canopy can be tailored to fit unusual or exact spaces, avoiding gaps and loose fabric.
• Durable hardware: Stainless steel D-rings and reinforced edges with double-layer stitching resist fraying and support long-term outdoor use.
• Breathable construction: The water and air permeable weave sheds wind load better than solid tarps and reduces pooling in light rain.
• Three-year assurance: The product comes with a 3-year assurance that backs the material and construction quality for everyday outdoor use.

Who It's For

This shade sail is best for homeowners, small business owners, and hobby farmers who need a precise, durable covering for patios, play areas, chicken coops, or outdoor seating. The tailored D-ring-to-D-ring measurement method makes it ideal when standard sizes leave awkward gaps or when covering an irregular right triangle area.

Customers who want rigid, waterproof canopies or need guaranteed full rain protection should look elsewhere, since this sail is water and air permeable rather than fully waterproof. Also, buyers who expect oversized coverage from the listed dimensions should double-check measurements: some customers noted the sail felt smaller than anticipated.

Pros & Cons

Pros

• High sun-blocking performance with up to 95% UV reduction for safer outdoor time.
• Robust construction: 200 GSM material, reinforced edges and stainless steel D-rings for improved durability.
• Custom-fit option allows exact D-ring-to-D-ring sizing for nonstandard spaces and neater installations.
• Breathable fabric reduces heat and wind strain, keeping the area cooler and avoiding heavy water pooling.

Cons

• Not fully waterproof; it is water permeable and designed to breathe rather than shed heavy rain.
• Some customers report the finished sail can feel smaller than expected, so accurate measurement is essential.

Specifications

Shape	Right triangle
Size (D-ring to D-ring)	18' x 20' x 26.9'
Material	200 GSM HDPE
UV Blockage	Up to 95%
Permeability	Water and air permeable
Hardware	Stainless steel D-rings, reinforced edges
Assurance	3-year assurance

Our Verdict

For anyone needing a tailored, heavy-duty shade solution the custom-size right triangle sail is a sensible choice: it delivers strong UV protection, durable construction, and measurable cooling while remaining breathable. It represents good value when accurate measurement is used and when buyers accept that the fabric is permeable rather than fully waterproof.

Frequently Asked Questions

Is this shade sail waterproof?
No, the fabric is water and air permeable; it sheds some moisture but is not intended as a fully waterproof tarp.

How should I measure for a custom fit?
Measure from D-ring to D-ring at each corner location and supply those dimensions so the sail fits precisely over the intended area.

Will it reduce temperature under the sail?
Yes, the sail can lower ambient temperatures by as much as about 15 degrees compared to an unshaded area.