Civil engineer
Cut and fill, pipe flow, slopes, trenches and tapers. 15 tools, 12 of them free.

Free tools
Earthwork volume and haul cycle planner
Truck loads, cycles per day and trucks needed to move a volume of earth on schedule.
Construction · EarthworksDeck joist span check
Maximum deck joist span for a lumber species, size and spacing, and whether your span works.
Construction · CarpentryConcrete slab, footing and pier volume
Cubic yards of concrete and the number of 60 or 80 lb bags for slabs, footings or round piers.
Construction · ConcreteRebar count and weight
Bars each way, linear feet, 20 ft sticks and weight for a rebar mat in a slab.
Construction · ConcreteSoil swell and shrink converter
Convert bank, loose and compacted yards for a soil type, plus truck loads.
Construction · EarthworksCompaction lifts and roller time
Number of lifts, roller passes and hours to compact a fill area.
Construction · EarthworksTrench volume and protection check
Excavation volume for a shored or sloped trench and the OSHA protective-system triggers.
Construction · EarthworksGrade and slope converter
Convert between percent grade, degrees, H:V ratio and inches per foot, with rise over a distance.
Construction · EarthworksWindow and door header size viewer
Typical header sizes by opening width for an exterior bearing wall carrying roof and ceiling, with jack studs and notes.
Construction · CarpentryPipe bedding and backfill volume
Bedding and pipe-zone stone, final backfill and spoil for a pipe trench.
Construction · UtilitiesAsphalt paving tonnage
Hot-mix tons, truck loads and tack coat for a paving area and thickness.
Construction · PavingWork zone taper length (MUTCD)
Taper length, channelizer count and spacing, and advance warning sign spacing for a lane closure.
Construction · Traffic controlPaid tools
Unlock one on its own, or get them together in a pack.
Cut and fill volume (average end area)
Cut, fill and net earthwork between cross-sections using the average end area method.
Construction · EarthworksSchedule float and critical path (simple)
For up to three parallel task chains to a milestone: which chain is critical, the float on the others and the slack to the deadline.
Construction · Project controlsGravity pipe flow capacity (Manning)
Full-pipe flow and velocity for a gravity storm or sewer pipe, and how full your design flow runs it.
Construction · UtilitiesPacks with these tools