Simply screw through the face of the board into your sub-frame. We recommend 400mm centre to centre joist spacing. Each hole can be plugged. We strongly recommend that the Deckwise Hidden Fastening system is not used with softwood boards.
Like all timbers in a natural climate, Cedar will shrink and expand. Although this may not be noticeable to the human eye, this needs to be allowed for when fitting your deck. As such, we recommend 6mm spacing between each board. Please note that we do not stock softwood for sub-frames and suggest you source this from a standard timber merchant.