20mm thick pink Ground nstruction mats whosesaler These industrial rubber mats are ideal for restricting dirt and dust on nstruction sites. Each mat is 1.2m x 0.915m x 20mm (4′ x 3′) and weighs 20kgs. The top has an easily cleaned slip resistant surface, which is certified to BS EN 7188:88 at 64 wet and 84 dry.