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Maximum depth of frost penetration in the ground during the winter.
The maximum depth that frost can be expected to penetrate into the ground.
The depth of frost penetration in the soil. Back to the Top
The depth of frost penetration in soil. This depth varies in different parts of the country. Footings should be placed below this depth to prevent movement.
The maximum depth at which the ground in a particular region freezes during winter. Home Improvement Encyclopedia
the maximum depth to which frost penetrates into the ground in a given locality, as measured during winter. [AHDOS
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