Installing the Plastic Lumber
5.a. With the first two boards secured into place, lay out the remaining boards onto the support structure. Even
-
ly space the boards as shown in the diagram shown below. Beginning at one end, it works best to secure each
board in turn using one screw at each end of the board to secure it to the support structure, repeating this process
until all of the boards are attached to the support structure.
Boards are approximately ½”
apart from each other.
5.b. After each of the boards are attached to the support structure, you can easily pre-drill and wallow out the
plastic lumber using the ¼” drill bit at each screw point. NOTE: It is not necessary to pre drill the
steel
at each
screw point. The screws being used are self drilling/tapping screws. After each screw point in the lumber is
wallowed out, simply drive the #14 x 2 ½” self drilling/tapping screw to secure each of the boards to the support
structure.