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Deck Permit in Gillette, Wyoming

Required for most residential decks in Gillette under the IRC (live text as of 2026-07-16 reads 2021 Edition; previously 2024 Edition; see codesAdopted). A flat $20 permit fee applies (reverified unchanged 2026-07-16); small, low, detached decks not serving the main exit door are exempt from a building permit (though a zoning permit is generally still required).

Verified 2026-07-16 · Source

When you need this permit

  • Decks exceeding 200 sq ft, attached to the dwelling, more than 30 inches above grade (within 36 inches of the deck), or serving the main exit door require a building/zoning permit
  • Decks NOT exceeding 200 sq ft, NOT attached to the dwelling, NOT more than 30 inches above grade within 36 inches, and NOT serving the main exit door do not need a building permit (a zoning permit is still required in most instances)
  • Footings: minimum 42 inches deep from finish grade to bottom of footing, 8 inches thick, extending 2 inches beyond post sides on all sides
  • Posts: 4x4 minimum up to 8 ft height; 5x6 required over 8 ft; must rest on footings, secured with a galvanized steel post base or equivalent
  • Decks 18 inches or less above finished grade must use pressure-treated or decay-resistant lumber (measured from the bottom of the floor joists)
  • Ledger boards require proper flashing (stainless steel, UV-resistant plastic, or G-185 galvanized steel) at the connection to the house

Required documents

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Fee schedule

DeckCity Code § 5-IV-1(b) (Revised 6-16-2026)
$20.00

Review timeline

Plan reviewTypical estimate — confirm current times with the Gillette building department
~0–5 business days

How long did your Deck Permit permit actually take in Gillette?

Anonymous — one question, no email. Answers are combined and only shown once at least 5 people have reported.

Inspection process

  1. 1

    Footing

    Before concrete pour — verify 42-inch minimum depth and post footing dimensions

  2. 2

    Framing

    Ledger board attachment/flashing, joist hangers, post/beam connections

  3. 3

    Final

    Completed deck per approved plans

See the full Gillette inspection guide — scheduling & re-inspection fees →

Tips

  • A deck under 200 sq ft that's detached from the house, low (≤30 in. within 36 in. of the deck), and not at the main entry can skip the building permit — but confirm with the Building Division at (307) 686-5260, since a zoning permit is still typically required.
  • Ledger board attachment requires the house siding/exterior finish to be removed first and proper flashing installed — a common inspection failure point.
  • The $20 flat fee makes decks one of the cheapest permit types in Gillette.

Frequently asked questions

Most decks need a building/zoning permit ($20 flat fee). A deck can skip the BUILDING permit only if it is 200 sq ft or less, not attached to the dwelling, no more than 30 inches above grade (within 36 inches of the deck), and not serving the main exit door — but a zoning permit is still required in most instances. Call the Building Inspection Division at (307) 686-5260 if in doubt.

In Gillette, the published Deck is: $20.00. These are the jurisdiction's own published figures — see the fee schedule table and source citations on this page.

Plan review for a deck permit in Gillette typically runs 0–5 business days. This is an estimate, not a published figure — confirm current review times with City of Gillette Development Services — Building Division at (307) 686-5260.

You'll need: Building/Zoning Permit Application (via EnerGov Self Service); Plot Plan. See the required-documents checklist on this page for details on each.

Gillette requires 3 inspection(s) for a deck permit, in order: Footing, Framing, Final. Schedule each through City of Gillette Development Services — Building Division ((307) 686-5260).

Apply through City of Gillette Development Services — Building Division at City Hall, 201 E. 5th St., 2nd Floor, Gillette, WY 82716. Phone: (307) 686-5260, email: Not published on city site — use "Send an E-mail" contact form on the Building Division page or main line gillette@gillettewy.gov. Office hours: Mon–Fri (contact department for current hours); permits/plans/licenses/inspections managed via EnerGov Self Service online portal (registration required). Official information: https://www.gillettewy.gov/Departments/Development-Services/Building-Division.

Gillette, Wyoming has adopted: International Building Code (IBC), 2021 Edition — including Appendix C, adopted by City of Gillette Code Chapter 5, Article I § 5-I-2 (Revised 6-16-2026). CHANGED 2026-07-16 audit: the live § 5-I-2.A text now reads "2021 Edition, including Appendix C" and no longer cites Ord. 4052 (12-17-2024), which had adopted the 2024 IBC edition with Appendices C and H per the source PDF as of the prior 2026-07-01 verification; the 2024-edition adoption no longer appears in the current ordinance text.; International Residential Code (IRC), 2021 Edition — including Appendices AA, AB, AC, AE, AN, AQ, and AW (AW 3D Printed Construction), adopted § 5-I-3 (Revised 6-16-2026). CHANGED 2026-07-16 audit: the live § 5-I-3.A text now reads "2021 Edition" with this different appendix set (previously 2024 Edition, Appendices CA, CB, BA, CE, BB, BM per Ord. 4052, 12-17-2024, which no longer appears in the current ordinance text).; International Plumbing Code (IPC), 2021 Edition — including Appendices B, D, E, adopted § 5-I-4 (Revised 6-16-2026) — NOTE: Gillette uses the IPC, not the Uniform Plumbing Code. CHANGED 2026-07-16 audit: edition now reads 2021 (previously 2024 per Ord. 4052, 12-17-2024, no longer cited); appendices B, D, E unchanged.; International Mechanical Code (IMC), 2021 Edition — adopted § 5-I-5 (Revised 6-16-2026). CHANGED 2026-07-16 audit: edition now reads 2021 (previously 2024 per Ord. 4052, 12-17-2024, no longer cited).; National Electrical Code — City Code § 5-I-6 (Revised 6-16-2026) (including Article 80/Annex H). CHANGED 2026-07-16 audit: the live § 5-I-6.A paragraph now contains two different edition references in the same sentence — "...adopted by reference the National Electrical Code, 2023 Edition..." and later "...of the National Electrical Code, 2026 Edition, including Article 80, are hereby referred to, adopted..." — with the amendment history newly listing Ord. 4081 (6-16-2026) as the latest ordinance for this section. The ordinance's own text does not reconcile the two edition years; previously cited cleanly as 2023 Edition only.; International Fuel Gas Code (IFGC), 2021 Edition — including Appendices A, B, C, D, adopted § 5-I-7 (Revised 6-16-2026). CHANGED 2026-07-16 audit: edition now reads 2021 (previously 2024 per Ord. 4052, 12-17-2024, no longer cited); appendices A, B, C, D unchanged.; International Fire Code (IFC), 2021 Edition — including Appendices B, C, D, E, F, and G, adopted § 5-I-8 (Revised 6-16-2026). CHANGED 2026-07-16 audit: edition now reads 2021 and Appendices H and I are absent (previously 2024 Edition with Appendices B–I per Ord. 4052, 12-17-2024, no longer cited).; International Existing Building Code (IEBC), 2021 Edition — adopted § 5-I-9 (Revised 6-16-2026). CHANGED 2026-07-16 audit: § 5-I-9.A reads "2021 Edition" (previously cited as 2024 Edition; the current text carries no ordinance citation for the edition line).; Uniform Code for the Abatement of Dangerous Buildings, 1997 Edition — adopted § 5-I-10 (Revised 6-16-2026); edition unchanged, only the chapter revision date-stamp updated at the 2026-07-16 audit.. Local amendments apply — see the Gillette overview page for the full list.

Sources & verification

Verified against official sources. Last reviewed 2026-07-16.

Fees, timelines, and adopted codes are researched from each jurisdiction's published records — see how we verify. Requirements change and vary by project, so always confirm the current details with the Gillette building department before you submit. PermitBase is an independent reference and is not affiliated with any government agency.

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Deck Permit in other cities

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