these embodiments all the members are the same each one having all the requisite number of openings 302 and 304 any member that is a the edge of the unit 100 is considered an end member 102 and any member that is not at the edge is considered a middle member 104 referring to fig4 the middle member features a number of openings 402 this embodiment features seven openings 402 in this embodiment each opening 402 allows passage of a pole 106 with respect to the devices disclosed herein u201c top u201d and u201c top surface u201d refer to the surface of the access mat that comes into contact with the persons or equipment being moved over the mat u201c bottom u201d and u201c bottom surface u201d refer to the surface of the access mat that comes into contact with the ground over which the mat is placed in some embodiments the top surface comprises a texture suitable for pedestrian or equipment traffic that is the top surface provides proper traction for equipment such as automobiles or other wheeled vehicles or pedestrians to move over the access mat without slipping in some embodiments the bottom surface comprises a texture suitable to grip the ground that is the bottom surface provides proper traction so that the access mat does not slip on the ground and provides a stable surface in other embodiments the top and bottom surfaces may feature the same texture to allow the unit to be used in either orientation in some embodiments the elements of the assembly 100 may.