Frost & ground/ CALCULATOR

Foundation frost-depth screening comparison

Compare a planned bearing depth with a locally established frost-protection target.

Local design frost depthmEnter the value established by the local authority or project designer, not a generic map estimate.

Required project offsetmEnter only an additional depth explicitly required for this project; zero adds none.

Planned bearing depth below final grademMeasure vertically from the final adjacent grade to the foundation bearing surface.

Screening target depth

1.20 m

Planned depth margin

0.15 m

Interpretation:The planned depth meets or exceeds the screening target by 0.15 m.

This is a comparison worksheet, not a foundation design. The frost depth and any offset must come from an applicable local requirement or the project professional. Soil frost susceptibility, groundwater, snow, heat flow, insulation, loads, drainage and excavation stability are excluded.

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Frost & ground

Foundation bearing and excavation elevations

Translate final grade, bearing depth and a working layer into site elevations and excavation depth.