Commercial channel drains are used to remove excess surface water in a wide range of commercial applications from volume trafficked car parks to heavy industrial warehousing with articulated vehicles and forklifts. The drains vary from 25 tonne up to 90 tonne. A heavy duty plastic channel accepts either a 25 tonne, 40 tonne or 90 tonne ductile iron grating that is securely attached eight times per metre to the channel’s frame. These channels are very heavy duty and hard wearing