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2018 IWUIC Class 1 and 2 20-minute exterior-door path

The unamended 2018 IWUIC includes a 20-minute fire-protection-rated exterior-door path in Class 1 and Class 2 construction.

A documented rating can match this path, but listing scope, frame, glazing, hardware, installation, approval, and local amendments remain checks.

code · Jurisdictions adopting unamended 2018 IWUIC Chapter 5 · Last verified 2026-08-26 · JSON (CC BY 4.0)

Published requirement text

“have a fire protection rating of not less than 20 minutes”

2018 International Wildland-Urban Interface Code, Sections 504.9 and 505.9 — International Code Council

Where this instrument is documented

Instrument iwuic-2018.

Set a location to read how this instrument lands where you are.

PlaceForceReachDatedChecks openSource
Eagle active application documented mapped area not sourced 6 Eagle City Code 7-1G-3 International Wildland-Urban Interface Code Adopted

Each place page carries that place's boundary, project scope and open official checks in full; this page's JSON twin carries them per application.

Machine-readable constraints

AttributeOperatorValue
assemblyRole eq exterior-door
fireResistanceMinutes gte 20

Products with documented matching attributes

Open the Build rules that quote this requirement

ProductCategoryStatusDocumented match evidence
Plastpro’s fiberglass door with foam core (8150-2017:0005) doors Listed
2 cited fields
Plastpro’s fiberglass door with foam core (8150-2017:0007) doors Listed
2 cited fields
Steelcraft GRAINTECH 20-minute exterior door configuration doors Attribute match
2 cited fields

Sources

2018 IWUIC Class 1 and 2 20-minute exterior-door path. FireApproved. https://fireapproved.com/requirements/iwuic-2018-class-1-2-20-minute-exterior-door/. Last verified 2026-08-26.