Building Codes - Summary and Illustrations
Building codes contain standardized requirements for the design and construction of most types of buildings. The codes address all aspects of construction, including structural integrity, fire resistance, safe exits, lighting, plumbing, sanitary facilities, ventilation, seismic design and correct use of construction materials.
Thurston County's building code is based on international codes that are adopted and modified by the Washington State Building Code Council.
Key Provisions of the Residential Code
Building codes are complicated, but you don't need to do it alone! The Permit Assistance Center is here to help. See the contact information listed below.
Climatic and Geographic Design Criteria
Click here for Thurston County's Climatic and Geographic Design Criteria.
Construction Drawings (includes exterior elevations) (Figure 1)
Typical Foundation Wall (Figure 2)
Reinforced Foundation Wall (Figure 3)
Concrete Retaining Wall (Figure 4)
Typical Accessory Foundations (Figure 5)
Isolated Footings (Figure 6)
Concrete Masonry Unit Wall (Figure 7)
Wood to Concrete Separation (Figure 9)
Cutting & Notching Wall Studs (Figure 10)
Cutting & Notching Floor Joists (Figure 11)
Stair/Handrail (Figure 12)
Monopour Foundation (Figure 13)
Propane Tank Setbacks (Figure 15)
Deck Construction (Figure 20)
Porch Construction (Figure 21)
Exterior Door Landings (Figure 23)
Landing Construction (Figure 24)
IRC Alternate Braced Panel (Figure 32)
Nailing Schedule (Figure 33)
Alternate Fasteners (Figure 34)
IRC R60210112 Exception 1 (Figure 35)
Plumbing DWV (Figure 40)
Generic Garage Plan (Figure 50)
Pole Barn (Figure 60)
Typical Carport (Figure 62)
Exempt Agriculture Use Buildings (Figure 80)
Questions can be emailed to staff at the email addresses below. Just click on the e-mail address and send your questions. We would be glad to help answer any question you have about your construction plans.
Commercial plan review and fire code construction inspections: Appointments must be scheduled in advance for Commercial Plan Review. You may schedule by contacting the Commercial Plan Reviewer by email or phone (360) 786-5466. Chris Edmark: email@example.com
Building inspections and requests for permit extensions: Jay Barney, Senior Bldg Inspector: firstname.lastname@example.org To request an extension of a building permit, submit a request prior to the expiration of the building permit. Click here for the building permit extension request form.
Fire marshal and fire annual safety inspection: Bobby May: email@example.com
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