Middleton deck permit
Middleton says most construction and remodeling projects need a permit before work begins, applied for through its online Permit Portal. Inspections are generally requested at least 24 hours ahead, with a footing and foundation inspection before concrete is poured or backfilled and a final inspection at the end. The city updated its building inspection SOP effective September 14, 2026.
Sources: City of Middleton, Building Inspections & Building Permits · Wisconsin Uniform Dwelling Code, SPS 325 Appendix B. Checked November 9, 2026. Confirm current requirements with your building inspector.
Composite Decks in Middleton
Composite in Wisconsin has to carry a label showing ASTM D7032 compliance under the state deck appendix. The frame under composite is usually wood, so ask how the builder protects the joist tops and ledger from water. Madison’s own deck page reminds owners to use weather-resistant materials such as treated lumber.
Tell the builder which board line you like and ask what joist spacing it needs.
Sources: Wisconsin Uniform Dwelling Code, SPS 325 Appendix B. Checked November 9, 2026. Confirm current requirements with your building inspector.
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FAQ
Is a permit needed for composite decks in Middleton?
Middleton says most construction and remodeling projects need a permit before work begins, applied for through its online Permit Portal. Inspections are generally requested at least 24 hours ahead, with a footing and foundation inspection before concrete is poured or backfilled and a final inspection at the end. The city updated its building inspection SOP effective September 14, 2026.
What is a typical price?
Mid-grade composite runs $45 to $65 per square foot installed in Wisconsin, per the Wisconsin Homeowners Guide. That is a published estimate, not a quote.
Who does the work?
An independent builder you hire directly. This is a Madison-area referral site, so we pass your request along; we do not build, price or guarantee anything.