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Columbus, OH Frost Depth & Snow Load: Ground Snow Load (2026)

Few Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified August 2026

Key Facts

Ground snow load
20 psf
Ice shield underlayment
Required
Air freezing index
1048
Mean annual temperature
52.6
How it compares
Same as Dublin and Toledo; well below Indiana's 30 psf northern tier

Summary

Columbus adopts a ground snow load of 20 pounds per square foot, the figure Ohio's code leaves for each jurisdiction to supply.

Table R301.2(1) CLIMATIC AND GEOGRAPHIC DESIGN CRITERIA: Ground Snow Load (e) 20; Wind Speed (mph) 90; Seismic Design Category B; Weathering (a) Severe; Frost Line Depth (b) 32"; Ice Shield Underlayment Required Yes; Flood Hazards See Flood Insurance Rate Maps; Air Freezing Index 1048; Mean Annual Temp 52.6.

Full Breakdown

The Residential Code of Ohio leaves the ground snow load column blank and directs the jurisdiction to fill it in, and Columbus supplies 20 psf in Construction Industry Communication #09. That is a light design load by national standards, Massachusetts towns run from 25 to 60 psf and Indiana's northern counties carry 30 psf, and it reflects central Ohio's snowfall rather than a relaxed standard. It matches the figures Dublin and Toledo publish, so the central and northwest Ohio cities we cover cluster at the same value even though their frost depths differ. The same table requires ice shield underlayment, which applies regardless of how modest the snow load is, and records the air freezing index as 1048.

Violations & Fines

Ground snow load is a design input checked at plan review rather than a citable offence. Structural drawings submitted with a building permit must show the roof designed for the adopted figure, with the roof value derived from it under the normal code provisions. The separately required ice shield underlayment is inspected as part of the roofing work.

Frequently Asked Questions

What is the ground snow load in Columbus, Ohio?
20 pounds per square foot, published by the Department of Building and Zoning Services in its completed Table R301.2(1).
Does Ohio set this statewide?
No. The Residential Code of Ohio leaves the ground snow load column blank and directs each jurisdiction to fill it in, which is why Columbus publishes its own figure.
Is ice shield underlayment required in Columbus?
Yes. The city's table marks ice shield underlayment as required, independently of the snow load figure.

Sources & Official References

Other rules in Columbus

All Columbus rules

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Ground Snow Load in Nearby Cities

How other cities in Franklin County handle ground snow load.

Dublin, OH
Few Restrictions