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Building Services

Codes and Standards#

Building Code Interpretationshighlight_off
Approved Alternate Materials and Methodshighlight_off
2018 Reference Codes (for building permits applied for between: January 12, 2019 - April 14th, 2022)highlight_off

2018 International Codes#

Effective for building permits applied for between: January 12, 2019 - April 14th, 2022 

All construction within the City of Fort Collins shall comply with following codes adopted by City Council.

2019 Contractor Code Amendment Training - Video

Structural Design Criteria for Fort Collins 

  • Snow Load: Live Load: 30 PSF / Ground Snow Load 30 PSF
  • Frost Depth: 30 inches
  • Seismic Design Category: B
  • Basic Wind Speed:
    • Risk Category ll (most structures):
      • 140mph (Ultimate) exposure B or 
      • Front Range Gust Map (ASCE 7-10 compatible published by The Structural Engineer's Association of Colorado, dated 10/18/2013)
    • Risk Category l: 130mph (Ultimate) exposure B
    • Risk Category lll & lV: 150mph (Ultimate) exposure B

2021 International Codes (Now in Effect)#

Effective April 15, 2022  All construction within the City of Fort Collins shall comply with following codes adopted by City Council.

Structural Design Criteria for Fort Collins 

  • Ground Snow Load: 35 PSF
  • Frost Depth: 30 inches
  • Seismic Design Category: B
  • Basic Wind Speed:
    • Front Range Gust Map (ASCE 7-10 compatible published by The Structural Engineer's Association of Colorado (dated 10/18/2013)
      • Or 
    • Risk Category ll (most structures): 140mph (Ultimate) exposure B 
    • Risk Category l: 130mph (Ultimate) exposure B
    • Risk Category lll & lV: 150mph (Ultimate) exposure B