Insert a deck clip into the slot on the side of the surfacing and position a #7 stainless steel screw at a 45 degree angle towards the surfacing at the opening in the clip.
A more attractive, but time consuming alternative to nailing or screwing fasteners through the top of the surfacing is to use deck clips that allow the surface to be fastened without exposed nails or screws.
Lay this way up for reduced warping using two galvanised nails, screws or deck clips
at every joist.
The other news in materials is hidden fasteners -- deck clips
, metal brackets, and biscuit joiners--available at home improvement centers.
Metal deck clips
secure the 1-by-6 decking to pressure-treated girders, leaving the surface unmarred by nails; only an existing pineapple guava tree pokes through it.