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How deep is the frost line in Michigan?
The average frost depth in the state of Michigan is 3.5 feet during the average winter.
Are frost laws off in Michigan?
Frost restrictions are still in effect for the remainder of the state and will be imposed and enforced on all state trunkline highways north of the Mackinac Bridge. Weight Restriction information and updates may be obtained by calling 1-800-787-8960.
How deep are fence posts in Michigan?
36 inches deep
How deep should fence post holes be? Fence post holes should be at least 36 inches deep.
Is 2 ft deep enough for fence post?
Dig post hole so diameter of the hole is 3 times the width of the post (i.e., the hole for a 4” wood post should be about 12 inches wide). The depth of the hole should be 1/3-1/2 the post height above ground (i.e., a 6-foot tall fence would require a hole depth of at least 2 feet).
What should the depth of a footing be?
Depth: Footings should extend to a minimum depth of 12 inches below previously undisturbed soil. Footings also must extend at least 12 inches below the frost line (the depth to which the ground freezes in winter) or must be frost-protected. Width: Footings should have a minimum width of 12 inches.
What’s the minimum depth for a foundation in Michigan?
R403.1.4 Minimum Depth All exterior footings and foundation systems shall extend 42 inches (1067 mm) below actual grade. Where applicable, the depth of the footings shall also conform to Section R403.1.4.1 of the code.
What are the requirements for a deck in Michigan?
1 Stairs. The steps of the deck must be at least 36 inches wide. 2 Handrails. Stairs that have four or more risers need to have a handrail on either side or on both sides of the stairs. 3 Material. You are required to use naturally durable lumber or preservative-treated lumber. …
How much footing do you need for a house in Michigan?
Based on 32-foot-wide house with load-bearing center wall that carries half of the tributary attic, and floor framing. For every 2 feet of adjustment to the width of the house, add or subtract 2 inches of footing width and 1 inch of footing thickness (but not less than 6 inches thick). See Section R404.3 for sill requirements.