The products from sonnenanker are suitable for every kind of deck from wooden planks or other material, if the gaps between the planks are a minimum of 4 mm wide. The deck should be at least 2 m2 in size. Make sure that the deck boards are securely fastened to the substructure and that they are not decaying. There must be at least 2 cm of vertical space free beneath the boards. Standard substructures usually have a space of 4 cm under the boards, making for more than sufficient space.