Hole size: 22 x 10mm, thickness 12mm. Close pitch hole allows the use of trucks and trolleys. Meets the DIN 4102 specification for flame retardancy. Conforms to slip resistance test EN13552 Category R10. Resists most industrial oils and chemicals. Ideal for high traffic flow areas, along main production lines and walkways. Gives a safe operating surface as debris falls through the matting. Optional extras: Bevelled safety edging (factory fitted).