The primary fixing method for our trims is screwing. The trims can be screwed to either the boards or to the supporting framework of your decking area. It is advised that you pre-drill and countersink the trims prior to screwing them in order to avoid cracking the composite material. A screw with a similar coloured head is advised for a more discrete finish and we recommend our NeoTimber coloured trim screws. An adhesive can also be used as a secondary fixing solution. See the fixing our composite edging section of our installation guide for more assistance on best practices.