Preview — in active development. The duct bank calculator runs in production today as part of the underground agent’s tool catalog, but it isn’t exposed as a standalone HTTP service yet. We’re extracting it as duct-bank-api in an upcoming release. Want early access? Email hello@epcstudio.io.

The duct bank service handles layout optimization, multi-circuit derating, concrete encasement volume, and trench dimensions for underground duct bank installations.

What it will do

  • Layout optimization — given a target circuit count and conduit sizes, return an efficient duct bank layout
  • Multi-circuit derating — apply ampacity derating factors for grouped circuits per NEC tables
  • Concrete volume — compute encasement concrete volume for cost and material planning
  • Trench dimensions — return trench width and depth requirements for the duct bank profile

Planned shape

# preview — actual endpoint shape may shift before launch
curl https://$VERTICAL_AI_BASE_URL/design \
  -H "Authorization: Bearer $VERTICAL_AI_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "circuits": 6,
    "conduit_size_in": 5,
    "conduit_type": "schedule_40_PVC",
    "burial_depth_ft": 4,
    "soil_resistivity": 90
  }'

Until it ships

You can call the same calculation today through the Underground gateway → by asking the agent for a duct bank design.

See also