Help Center · Sun Shade Sails · Measurement

Step 1 - Find the Anchor Points

Begin by finding an anchor point for the sail, make sure they are securely grounded and will be able to handle the tension of the sun shade sail. If you are using trees or other natural anchors, ensure they are strong enough to carry the weight of the sail.

Make sure the shade sails are installed at least 40 degree angle so that water can drain smoothly to prevent pooling

Step 2 - Take the Measurements between Anchor Points

Use a tape measure to determine the straight-line distance between each mounting point — not the area on the ground.

Make sure to note the height of each anchor to plan for proper slope and drainage.

Step 3 - Size Reduction for Proper Tension

Shade sails should to be smaller than the distance between anchor points to allow for hardware and tension.

As a general rule, your sail should be around 10% smaller on each side than your anchor-to-anchor measurements.

Finished Product Size

The size listed on your order refers to the actual finished sail size (with a tolerance of ±5cm). This is not the distance between anchor points, but rather the dimensions after size reduction.

Each side is measured along the edge, from the bottom of one D-ring to the bottom of the D-ring on the same side of the sail, when laid flat and not under tension.

Fabric Seams on Shade Sails

Due to fabric width limitations, your shade sail may require panel seams depending on the size ordered.

FAQ

Measurement & Installation Guide for Sun Shade Sails

Should my shade sail be the same size as the distance between anchor points?
No. The shade sail must be smaller to allow space for tensioning hardware (turnbuckles, D-rings, etc.).
We recommend making your sail approximately 10% smaller than the anchor-to-anchor distance on each side. The size listed on your order refers to the finished sail size (±0 tolerance), not the anchor spacing.
What slope or angle should I use during installation?
Always install the sail with at least a 30-40° angle between the highest and lowest points to ensure proper water runoff and prevent pooling. Mark your anchor heights accordingly before installation.
Can I use my sun shade sail on rainy days?
We don't recommend using shade sails during heavy rain.
Most shade sails are designed for sun protection, not waterproofing. Even with a steep installation angle (around 30-40°), heavy rain can still cause serious water pooling, which may lead to irreversible stretching or deformation of the fabric.
To protect your shade sail, we recommend detaching at least one corner during strong wind or rainy weather to allow water to drain and reduce tension on the fabric.