CPC E01C 9/086 (2013.01) | 20 Claims |
1. A mat comprising:
a first side and a second side opposite the first side, the mat having a body with a thickness defined between the first side and the second side, a width defined between a first edge and a second edge, the second edge opposite the first edge, wherein a thickness direction is defined in a direction from the first side to the second side;
and
a lip extending from the body of the mat, wherein the first side, the second side, and the lip are integrally formed to define an integrally formed mat, the lip comprising:
a first rib having a first rib thickness in the thickness direction, and a first channel portion integrally formed with the first rib and having a first channel thickness in the thickness direction, wherein the first rib thickness is greater than the first channel thickness,
a second rib having a second rib thickness in the thickness direction that is greater than the first channel thickness such that a void is positioned between the first rib and the second rib with the first channel positioned between the first rib and the second rib, and
a lip stiffener extending between the first rib and the second rib and filling at least a portion of the void between the first rib and the second rib.
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