Figure 11-6. - AM-2 mat installation sequence without a guide rail.

The general sequence of laying matting for any length of installation where a guide rail is not required is to start at the transverse centerline and work toward each end simultaneously. The starter keylock section is laid, and then individual mats are laid in a brickwork type of pattern from left to right when facing the working area. The left-to-right sequence is dictated by the mat interlock design which is such that reversing the procedure is difficult and inefficient. The coated side is always “up,” and the interlocking prongs on the 2-foot edge are always to the right and up. Survey lines are present to guide at least one edge of the section being laid to maintain proper longitudinal alignment. Other sections of the site maybe laid in