department of community development - building inspection | attached decks | Attached Decks All decks in the City of Waukesha must be built according to City and State Building Codes. All decks proposed to be constructed require a building permit. Contractors building decks in the City must have State Certification. General Information for all attached decks All post footings must be a minimum of 48" below grade. Posts for decks more than 6' above grade must be 6"x 6" Decks less than 6' above grade shall have 4"x 4" minimum size posts Decks more than 24" above grade require guardrails. Stairs with more than 3 risers must have handrails Steps may not vary more than 3/16" riser to riser Wood used for deck construction shall be pressure treated or naturally decay resistant wood. To view or download a span table for posts, beams and joists click here: Span Table Click here to download information on what is needed when submitting a Building Application. Click here to download a detailed brochure about decks. |