All Quality Mat mpany rig mats are made with 6 x 15 # beam cross members, setting our quality rig matting apart from other mats that are made with flat bar cross members, . The average life of our drilling rig mats is approximately 10 years, though some have remained active for 15 – 20 years. 8′ x 20′ 8′ x 30′ 8′ x 40′