Delivery was incorrect first time round. Was missing 6 sheets of 11mm OSB. Then had to wait as could not be delivered that day or the weekend. Had to wait for my next day off the following Wednesday. When the next delivery came, The driver was very nice.(not a courier this time) although that guy was very good. I did ask a few questions though about the timber. As some were kitemarked and others not. The ones that were not do not seem as good as the kitemarked.- manufacturers mark. As in pressed (glued tight when made) the edges are a rougher kind and flake easy & they are a different colour (dull) not sure this will affect what I am doing “I hope” otherwise overall good. 👍 and cheaper than elsewhere Will add pics if required at a later date.