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Building Division Home
 
Design Criteria
Estimate Building Permit Fees
Forms, Handouts, Brochures
Inspections Overview
Permit Process
Permit Requirements
Permit Fees
Site Plan Requirements
Types of Inspections
Types of Permits
WSEC compliance
Mechanical inspection

**This information includes most, but possibly not all requirements**
During your inspection the inspector will be looking for:
  • Site address
  • Building permit
  • Building plans and site plan
  • Mechanical contractors license number
  • Combustion air opening
  • Duct sizing and location
  • Location of heating / cooling equipment in garage, minimum of 18" above floor
  • Gas lines under test
  • Propane tank setbacks
  • Flues & stacks, B-vent (no screws permitted), 1" clearance to combustibles
  • Furnace located at fire wall (1 layer, 5/8" type X GWB on wall) (2 layers 5/8" type X GWB on ceiling if supports are inches o.c.)

  • **Approved site plans are required to be on-site with the approved plans at all times**
  • Additional inspections may be necessary as required by the Building Official, Fire Marshal, other Mason County Department, or engineer or geologist of record.
  • All construction must conform to the Mason County approved building plans and is subject to field corrections