Free Calculators

Free Trench Safety Calculators

Quick calculators for sloping, ladder placement and soil loads, built on OSHA Subpart P. They run in your browser and save nothing.

Slope ratio, angle, setback, top width, spoil distance and volume for Type A, B and C soil.

Ladder count, spacing and minimum length for OSHA's 4-foot and 25-foot trench egress rule.

Estimate the tons of soil in a typical trench wall failure, in cubic yards and car-equivalents.

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Short lessons with a graded quiz at the end of each one.

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