Type C slope, Type B 1:1, Type A 0.75:1, stable rock, PE depth stops, and benching rules are computed from one pure engine.
Offline Android tool for trench safety records
Dig the trench the width OSHA already decided.
TrenchSafe finds your legal trench slope, benching, spoil setback, and egress rule, then captures the signed daily inspection for the binder.
Geometry plus the signed record
Spoil setback and 25 ft egress checks sit beside the trench cross-section so crews see what to change before entry.
Save signed daily inspections and export a binder with the diagram, geometry, citations, and competent-person signature.
Trench safety answers
How wide should an 8 ft Type B trench be?
Slope it 1:1, so the top width is your bottom width plus 16 ft.
How far back must the spoil pile sit?
At least 2 feet from the trench edge under 29 CFR 1926.651(j)(2).
When does a trench need a PE?
When sloping or benching exceeds 20 ft deep, a registered professional engineer must design it.
TrenchSafe is an estimate and recordkeeping tool. Verify against current OSHA 29 CFR 1926 Subpart P, engineered designs where required, and your AHJ.