delivery was as per site, items in thin cardboard boxes that do not fully cover marmox 30mm by 4 some of the marmox ends flattened out of shape so no longer square. if i was laying under flooring or bathroom or airtight insulation etc. that requires a tight fit which is what there designed for, they would need to be trimmed. [this could be easily avoid by using large thick moulded angled plastic protectors on the corners. been around for year] so can only say cost cutting. would have rejected on other projects I've use marmox on. but in this instance snug fitting not require. all down to couriers