HNOKAY HD mats create a stable work platform or temporary roadway in extremely soft and wet ground nditions. Specifications. Size. 7.5 ft L x 14 ft W x 4 in H 2.3 m L x 4.3 m W x 10 cm H Weight. 1,095 lbs (497 kg) separation and hopping under heavy rolling loads or over soft ground. Signature's heavy-duty mposite mats are semi-buoyant ...