Follow all local building codes when building a composite deck. Fasten face-mounted double joist hangers for beams every 8 feet on center along the front rim joist and ledger, flush with their bottom edges. Cut your deck boards to the precise length to allow the gap for breaker board installation. With your first board in place, the next phase requires installing universal fasteners to make subsequent installation easier. Though screws are also an option, these universal fasteners ensure a clean...