Just wondered if anyone knows about channel drains (the 1m by 100mm ones), Looks like I need some as it puddles at the threshold of my front garden. So it will take a bit of traffic. They are £30 in Wickes etc but ive seen them online for £10. So does anyone know a good place to buy them and is there a way of knowing if they will take the strain. A rating for example. Cheers