Measurement Instruction for Cable Tension Sun Sails
This measurement guide refers to the following product:
- Cable tension sun sail (Link)
Our cable tension sun sails can be mounted in two ways:
- Between the rafters
- Under the rafters
Mounting between the rafters
When mounting between the rafters, the exact distance (clear dimension) between the adjacent rafters must be determined:
Very often the rafters are not always parallel to each other, so the distance varies at different points. To determine the correct width of the track, we recommend measuring the distance at at least three to four points, depending on the length:
The distance determined as the largest is to be specified as the sun sail track width.
Please note - the larger the difference between the widest and narrowest point, the more the tracks sag in the middle at narrow points.
Mounting under the rafters
When mounting under the rafters, the field width corresponds to the distance from the respective center of the beam to the center of the next beam:
Length of the shading track
The length is calculated including the cable tensioning device:
10 cm is deducted from the entered length during production for the cable tensioners, so that after assembly the total length (shading track plus cable tensioner) corresponds to the entered dimension.
The shading tracks can be manufactured in two different optics, shown schematically here:
For wavy variants, we add 10% more fabric for the length, so that a wave optic is created in the extended state.
Edge and rope distance
The distance between the rope and the rafters is 1.5 cm and between the sun sail edge and the rafters 2 cm:
Runner hook distances
The distance between run hooks can be between 20 and 30 cm. For the tightly tensioned variant, we recommend 20 cm and for the "wavy" variant 30 cm distance:
This value is approximate. Since the running hook distances have to be evenly distributed over the entire length, this distance varies somewhat from the selected value.
With our online calculator, you can determine the exact distance between the running hooks.
First attach the front and rear running hooks (LOWER INSTALLATION INSTRUCTIONS) and measure the distance between them.
Enter this value in the "final hook distance" field and select the desired distance: