A waterproof retractable pergola canopy is for sale in 2 different widths and 3 different lengths, as you can see in the pictures.
The width is fixed and cannot be changed. Keep in mind that you need to leave at least 5 cm free space on each side. That may be a bit more, 10 or 15 cm doesn't look strange, from 20 cm you really start to see a gap between the fabric and the pergola or wall, but that doesn't have to be disturbing either.
Do you have a terrace against the house of, say, 340cm wide? Then you can use a 290cm wide waterproof retractable pergola canopy in a lean to pergola.
Let's do the math:
- terrace 340cm wide
- minus the width of the beam of the pergola (9 or 14cm): 340 - 9 = 331cm
- minus at least 5cm clearance, but when you have plenty of room I would recommend at least 10cm: 331 - 10 = 321cm
- minus the width of the harmonica fabric waterproof 290cm: 321 - 290 = 31cm
- That leaves 31cm of free space on the wall side.
31cm of free space between the waterproof retractable pergola canopy and the wall of your house is really not much, it can easily be more. At my house it is even more than 50cm, which leaves enough space for the outdoor lamps that hang against the wall.
The sun is never exactly straight above the pergola and thus falls obliquely against the wall. On the ground, there is then just shade. Also, you are hardly ever tight against the wall. Even if some sunlight gets between the waterproof retractable pergola canopy and the wall, you will still be sitting slightly away from the wall and in the shade.
Rain is a slightly different story, as it generally falls straight down through the open space. But usually the roof of your house sticks out a bit (60cm in my case), so the rain won't be too bad.
The table below shows the minimum clear width needed, more is no problem. (For your convenience, we have also added how many steel cables there are in the waterproof retractable pergola canopy, so that you know immediately).
In the length, you don't need to keep a free space. The length is variable. If, for example, you hang a 500cm-long pergola canopy in a 470cm-wide free space, this is not a problem. The waterproof retractable pergola canopy then simply slides open a little less and remains more wavy when fully extended.
Longer than 500cm is not possible. The forces on the tensioning cables would be too great and the waterproof retractable pergola canopy would sag. If the length exceeds 500cm, an intermediate beam is required between two fabrics. This is no problem for Vinuovo, we simply adapt your pergola to it. For a lean to pergola, we can make a 10-metre-long pergola with just 3 posts! (In the case of a free-standing pergola, that obviously means 6 posts, 3 on each side).
The waterproof retractable pergola canopy is not available in the width of 370cm like the regular pergola canopy. The total slope would then become very large and the weight of the water during rain would simply become too heavy.
Width waterproof retractable pergola canopy |
Minimal free width |
Pergola canopy length |
Suitable for a free length of: |
200cm (2 steel cables) |
210cm |
300cm |
200 up to 300cm |
200cm(2 steel cables) |
210cm |
400cm |
300 up to 400cm |
200cm(2 steel cables) |
210cm |
500cm |
400 up to 500cm |
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290cm(3 steel cables) |
300cm |
300cm |
200 up to 300cm |
290cm(3 steel cables) |
300cm |
400cm |
300 up to 400cm |
290cm(3 steel cables) |
300cm |
500cm |
400up to 500cm |