Laborer
Trenches, silt fence, compaction and soil types. 4 tools: one is free, the rest are premium.
Free for laborer
Trench volume and protection check
Excavation volume for a shored or sloped trench and the OSHA protective-system triggers. No account needed.
Premium tools
All of them come with the laborer plan.
Compaction lifts and roller time
Number of lifts, roller passes and hours to compact a fill area.
Construction · EarthworksSoil classification viewer (OSHA)
OSHA excavation soil types: what each is, the allowed slope, how to test and the mistakes that cause cave-ins.
Construction · EarthworksSilt fence layout and quantity
Rows of silt fence needed on a slope, total length, stakes and rolls, and a drainage-area check.
Construction · Erosion controlThe laborer plan
All 4 laborer tools, one plan
$10.20 a month at the launch price (list $12). Save more paying by the quarter or year; add another role for less.