comprise outer legs 17 and inner legs 18 the outer legs 17 and the inner legs 18 extend downwardly from and support the platform 51 spaced apart from i e raised above the joists 12 the outer legs 17 and the inner legs 18 extend longitudinally down the length of the decking panels 13 in this embodiment the inner legs 18 comprise generally vertical supports 50 extending generally perpendicularly down from a bottom side 52 of the platform 51 the inner legs 18 further comprise lower side flanges 19 that extend from the generally vertical supports 50 and rest on the joists 12 the outer legs 17 comprise an angled portion 20 that extends downwardly from an outer edge 53 of the platform 51 and a generally horizontal portion 21 connected to the angled portion 20 the outer legs 17 thus form a u201c z u201d shape in conjunction with the platform 51 in other embodiments the outer legs 17 of the decking panels 13 are differently shaped as is further discussed herein each clip 11 has two 2 downwardly extending legs 22 one of which is shown in fig2 that frictionally grip opposite sides of the joist 12 to hold the clip 11 to the joist 12 until a fastener not shown is installed through the clip into the joist as further discussed herein the decking panels 13 are spaced apart from one another by the gap 16 between the panels 13 the gap 16 is maintained generally uniformly by the clip 11 which fits between the outer legs 17 of adjacent decking panels 13 as shown when installed the clip 11 contacts the outer legs 17 of adjacent decking panels 13 such that when the fastener not shown is installed the clip.