Various issues after 2 years. First, one of the boards has split. They have also all discoloured, seem to attract dirt and moss and require regular cleaning. The hollow support boards they supply are useless - they will not hold a screw unless you get it right in the centre. And the screws are of poor quality too. So the boards are only loosely attached to the supports. As a result the boards expand in the sun, leaving half inch gaps between their ends. Ihave to tap them back into position. Should have built a timber frame so the screws can be properly tightened. I would like to relay them in shorter runs the other way round but would need to buy a few more boards to do this. Sadly I cannot do so because worst of all, their delivery charges run into the hundreds of pounds. Ludicrous. My advice is build timber frame using treated wood, buy locally, and use your own screws and do not buy this product from this firm