The palram greenhouse was delivered with 2 damaged components at first sign during unpacking however there turned out to be many more pieces of twin wall crushed at the edges simply caused by terrible packaging namely the securing straps around the box is very tight with no protection inside the box hence it damages several twin wall pieces around the edges. I tried to use palram contact us for damages but it failed every time I therefore contacted keen gardener who have ordered 2 replacement twin wall sections these being the worst damaged and I shall have to live with the rest. I'm still waiting for the replacement parts 2 weeks later obviously not a happy customer.