Interlocking dust control mats

The method of forming a large dust control mat from a plurality of smaller dust control mats which have cleats on the bottom thereof comprising the steps of:

• laying down a strip of material having cleats on at least one side thereof with the cleats projecting upwardly therefrom, placing a first smaller dust control mat onto the strip of material with some of its cleats in contact with the upwardly projecting cleats of the strip of material and placing a second smaller dust control mat onto the strip of the material with one of its edges adjacent the first dust control mat and with some of its cleats in engagement with the cleats of the strip of material to provide a larger dust control surface from at least two smaller dust control mats.