How to do it
Cut to Length
Stake and Plumb
Decks more than 5 feet above grade, located in hurricane-prone or high-wind regions, or set with footings in loose soil may require bracing. Local codes may limit you to a certain configuration, but try to bring as many aesthetic qualities to your brace design as code restrictions allow.
Leaving a splice in a beam unsupported will weaken the structure and could cause it to fail. Wherever you have to splice a beam, make sure it's offset from a splice in the other 2x member by at least 8 feet and center the splice in a post/beam connector.