The days immediately before a show are referred to as Build Up. Your organiser will have detailed how long you have to build your stand. This is when all the services you have ordered and the designs you have approved come together. You will also be given time slots when you may enter the halls to stock up your stand and when you must vacate by. For some simple shows it is one or two days in the lead up to the actual event. For some of the larger shows build up can last for weeks. Likewise when it is all over and the contractors come in to dismantle it all (Break Down) you will be informed of how long you have to do it and when you need to vacate the halls. Organisers are very strict on these times as they are in turn under contract with the venue with quite possibly the next show waiting to build up theirs.