In Switzerland, a shade sail rarely just needs to "provide shade somewhere." City balconies, courtyards, lakeside terraces, and hillside properties place very different demands on shape, mounting, and heights. Custom fabrication is particularly worthwhile when existing walls, railings, or posts already dictate the geometry and a standard format is either too small or gets in the way at critical points.
Hillside property: Heights are just as important as length and width
For a hillside terrace, a side view should always be created in addition to the top view. Wall crowns, railings, roof overhangs, doors, and the height of the planned mounting points are marked on it. This makes it possible to check whether there is enough clearance under the sail and whether a usable slope is created in the case of a waterproof version.
Free forms and trapezoids are often more sensible here than a rigid rectangle because they can accommodate offset attachment points. The outer edges remain straight; concave shapes are not part of this design type.

City terrace and courtyard: plan compactly, keep it airy
In Zurich or Basel, balconies, courtyards, and roof terraces are often more strongly defined by existing facades. Doors must be able to open, windows should remain clear, and neighboring areas should not be unnecessarily covered. A narrow rectangle or trapezoid can therefore provide significantly more usable shade than a decorative but small-scale triangle.
In sheltered courtyards, air exchange is also important. Those who primarily want UV protection and shade are often well-served by water-permeable HDPE. It allows air and precipitation to pass through and appears less enclosed than a waterproof surface.
Lakeside terrace and open location: the sail area must remain manageable
On open terraces around lakes or on elevated properties, wind quickly becomes a practical issue. The goal should not be the largest possible fabric area, but rather an area that covers the relevant seating or dining zone while remaining accessible. A sail must be able to be dismantled in good time before unfavorable weather conditions.
In Bern, Lausanne, and Geneva, the range also extends from compact urban areas to more open terraces. Therefore, the same shape is not automatically the best one everywhere.
Waterproof shade sail: define slope and water runoff in advance
PU-coated polyester is the right choice if the area under the sail is to remain usable even during rain. This requires a significant slope for the fabric. At least as important is the question of where the water runs: away from doors, facades, and seating areas, not towards them.
With varying mounting heights, the water path can often be determined by the design itself. Conversely, if you tension it almost horizontally, you risk water accumulation and unnecessary stress on the fabric.
Which shape fits which area?
- Rectangle: plenty of cohesive shade over a dining area, lounge, or long table.
- Triangle: targeted shade island, visually light, but less usable space at the tips.
- Trapezoid: sensible for diverging walls or terraces of varying widths.
- Straight free form: for offset mounting points when no standard geometry fits cleanly.
The order is placed based on the finished fabric dimensions. The distance between the mounting points is larger because fittings and tensioning travel require additional space.
Few mounting options on balconies and city terraces
On balconies, roof terraces, and in courtyards, there are often only a few suitable attachment points available. A custom-made trapezoid or a straight free form can accommodate such geometries. If a secure wall point is missing, an additional post can significantly simplify the construction.
For large spans or open lakeside terraces, several smaller sails are often more manageable than a single maximum-size area. They can be oriented more precisely toward the dining area and lounge and can be removed separately if necessary.
Swiss Plateau, lakes, and Alpine foothills: assessing heights and open locations correctly
In Switzerland, the range extends from compact city terraces on the Swiss Plateau to hillside properties and open lakeside locations. For level urban areas, the precise fit between doors, facades, and neighboring areas is often decisive. In the Alpine foothills or on hillsides, however, corner heights, wind, and good accessibility become more important.
A custom shade sail can accommodate these differences without becoming unnecessarily large. Particularly on high-quality terraces, a clearly defined shaded area often appears more serene than full coverage.
Hotel, lakeshore, and gastronomy: usage over square meters
For a hotel or restaurant, the shade over the areas actually in use counts. Multiple sails can treat the dining area, lounge, and entrance separately. On open lakeside terraces, smaller, easily accessible sails are often more practical than a single maximum-size area.
For hotels and restaurants, the furniture should form the starting point. Long rows of tables benefit from clear rectangles, while several smaller sails can flexibly separate the lounge, dining area, and entrance from one another. On open lakeside properties, the good accessibility of the connections remains particularly important.
Configure a custom shade sail for Switzerland
Shape, finished fabric dimensions, material, and extras can be assembled directly online. The price is displayed in the configurator.