A. 
Definitions. As used in this article, the following terms shall have the meanings indicated:
ATTACHED DECK
Any deck which is physically connected to the principal building or accessory structure.
DECK
Any structure which serves as a raised horizontal platform on floor constructed of wood or other materials, without enclosing walls or roof.
DETACHED DECK
Any deck which is physically attached to the principal building or accessory structure.
B. 
Construction. All decks shall be constructed in accordance with either.
(1) 
Ch. SPS 320to 325 Appendix A, B or C, Wis. Adm. Code.
(2) 
Commercial Building Code.
(3) 
Licensed Design Professional.
C. 
Permits. A building permit is required for any new deck, deck addition, alteration, or replacement of required guardrails. Sole replacement of deck boards does not require a building permit.