Many contractors tell the home owners that a building permit is not needed for their deck. It is the responsibility of the homeowner to ensure that a building permit is obtained and not the contractor's. In many cases a homeowner finds out the hard way that a permit was needed and by that point the contractor has been paid and long gone. Many contractors that engage in deck building are not familiar with the building codes and are not able to obtain permits on their own and do not know how to build decks in accordance with the building code requirements. Having a deck that does not meet building code can mean costly adjustments or complete replacements. A deck built with a permit guarantees a peace of mind down the road.