Construction Trade Exam Research Area

Residential Building Contractor (C)
ICC Exam # 424

Apply for the License

Idaho Association of Building Officials
PO Box 8224
Boise, ID 83707
(208) 321-9182
IDABO Web Site

Register for the Exam

International Code Council
900 Montclair Rd.
Birmingham, AL 35213
(888) 422-7233, ext. 5524
Candidate Information Web Page

Exam Type


Exam Content

Subject Areas % of
Administration 9
Building Planning 11
Plan Reading 13
Life Safety 5
Exterior Walls 3
Roof Assemblies and Rooftop Structures 8
Soils and Foundations 11
Concrete 3
Masonry 8
Wood 24
Glass and Glazing 3
Gypsum Board and Plaster 3
Energy Efficiency 3

Total number of test questions: 80
Time allowed (hours): 4.0


Books Allowed in the Exam

1. International Residential Code, 2012, ICC. Doc Link
2. Concrete Manual, 2012 or 2015, ICC. Buy at Amazon

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