Lucas County, OH Frost Depth & Snow Load: Frost Line Depth (2026)
Key Facts
- Frost line depth
- 36 inches minimum depth of footing below finish grade
- Ground snow load
- 20 pounds per square foot
- Weathering
- Severe
- Winter design temperature
- 6,494 heating degree days per year; 1°F
- Air freezing index
- 1,500 degree days below 32°F
- Currency
- No code edition named; wind stated as 90 mph 3-second gust: predates the 2019 RCO
Summary
Lucas County Building Regulations sets a frost line depth of 36 inches minimum below finish grade, established for the county and used to complete Ohio's blank design criteria table.
LUCAS COUNTY BUILDING REGULATIONS — Climatic and Geographic Design Criteria. One-, Two-, and Three-Family Dwellings, Section R301, the following local design criteria is established for Lucas County, and shall be used in Table R301.2 (1). These criteria may also be used where permitted in Ohio Building Code chapter 16, Structural Design. GROUND SNOW LOAD: 20 pounds per square foot. WIND SPEED: 90 miles per hour 3-second gust. SEISMIC DESIGN CATEGORY: A or B. SUBJECT TO DAMAGE FROM WEATHERING: Severe. FROST LINE DEPTH: Thirty-six inches (36") minimum depth of footing below finish grade.
Official source re-checked September 8, 2026: the cited page had not changed since it was quoted.
Full Breakdown
Ohio leaves frost line depth to each jurisdiction, and Lucas County Building Regulations publishes its answer on a single-page Climatic and Geographic Design Criteria sheet: the same template the City of Cleveland uses, which suggests a form circulated to Ohio building departments. 2(1), and gives a frost line depth of thirty-six inches minimum depth of footing below finish grade. It matches the figure the City of Toledo publishes, which is what you would expect since Toledo is the county seat. The sheet also notes the criteria may be used where permitted in Ohio Building Code chapter 16 on structural design, so its reach is not limited to one- to three-family dwellings.
One currency caveat: the wind speed is stated as 90 miles per hour 3-second gust and no code edition is named, both of which point to a document predating the 2019 Residential Code of Ohio.
Violations & Fines
Footing depth is verified at inspection before concrete is placed. Lucas County Building Regulations enforces in unincorporated areas and for jurisdictions that contract with it, so which department inspects your project depends on where in the county it sits. A footing above 36 inches will not pass.
Frequently Asked Questions
How deep do footings have to be in Lucas County, Ohio?
Is that the same as Toledo?
Does this apply to commercial buildings?
Sources & Official References
Other rules in Lucas County
Compare Lucas County to another location·View the Ohio frost depth & snow load overview
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