Yes it can. The post include a galvanized surface mount steel post.

Yes they are structural. Each post includes a surface mount galvanized steel post bracket.

Yes it can, the post will require the appropriate deck fasteners ( screws or lag bolts ) sold separately.

Each posts includes a surface mount galvanized steel post bracket. They can be easily attached to the deck using lag bolts if installed over a wood deck or appropriate masonery screws if installed on concrete.