sonnenanker products are suitable for any deck made of wooden planks or planks of other material, provided the gaps between the planks are at least 4 mm, better 5 mm wide. The deck should be at least 2 m² in size. Make sure that the wooden planks are sufficiently screwed to the substructure and are not rotten.
There must be a free space of at least 2 cm under the boards. With the usual substructures, the space under the boards is 4 cm high and thus more than sufficient.
Our products are generally not suitable for wooden tiles that are laid without joints or only with weak joints.
The highest load-bearing capacity is for decking where the screw heads are visible from above. The planks are held in their full strength by screws into the substructure.
If the planks are also hardwood, such as bangkira, cumaru, ipé, teak or similar, you do not have to worry about the load-bearing capacity. Provided you adhere to the recommended size limits of Ø 4.0 m for centre pole parasols and Ø 3.5 m for cantilever parasols. Native woods such as larch, Douglas fir, oak and thermo-ash are also almost as resilient.
More important than the material of the planks is the type of fastening: Often, a concealed fastening without visible screws is desired. Composite materials such as WPC are usually only offered in this way. There are many different systems here, but with few exceptions they have one thing in common: They do not give any information on pull-out strength.
According to our experience, centre pole parasols up to Ø 2.5 m can still be set up with our system on decking boards fastened in this way. It is best to choose parasols with an aluminium pole. These are elastic and do not pass on the full wind load to your deck.
Most of our parasol bases couple to two planks with one central anchor. This is usually enough. If you want to set up larger cantilever parasols or very heavy parasols on well-bolted decks, it is best to use our parasol base for cantilever parasols. This couples to five planks with a total of four anchors. It is also suitable for attaching medium-sized parasols to more weakly fastened decking boards.
However, you can simply order your parasol base for testing according to the motto “the proof of the pudding is in the eating”. Where better than at your home, where it will stand for a long time? If you don’t like it, send it back to us. We will promptly refund the purchase price and the return shipping costs.