Decide on exactly where the shade sail is to go. Choose the location carefully and do not position the sail where it might cause an obstruction.
Consider the path of sunshine throughout the day and also whether the sail will darken an interior room via a window.
When deciding on the second and third fixing point locations, remember that a shade sail should have at least one meter of pitch, or slant, to allow water to run off the side when it rains.
Measure the distance between the first fixing point and the second with the tape measure and decide whether cable extensions will be needed. If so, the cable extensions will be attached to the sail before installation. Use a ladder to reach the desired fixing points.
Repeat for the second and third fixing point, and the fourth if the sail is rectangular.
Drill the hole for the first eyebolt using the drill and 8mm drill bit. Install the eyebolt.
Repeat for the second and third fixing point and the fourth for a rectangular shade.
Attach the stainless steel turnbuckles to all the shade sail corners, clipping them through the eyelets provided and screwing them tightly closed.
Attach extension cables if required.
Clip the first corner to the first eyebolt. Run the shade sail across to the second fixing point, taking care not to soil it by dragging it across mud or grass. (A second pair of hands is sometimes useful to support the shade while it is being tensioned.)
Repeat for all corners.
Work around the shade sail, tightening it so there is no sagging or pleating.
Do not be concerned if the shade seems to sag slightly; it can be tensioned tightly with the turnbuckles.