Trades Reference

Your all-in-one field reference for Plumbing, HVAC, and Electrical.

Plumbing

Pipe sizing, fixture units, DWV, rough-in dimensions, pressure calculations, and material references.

Load calculations, duct sizing, refrigerant charts, equipment selection, and ventilation standards.

Wire sizing, circuit loads, NEC code tables, conduit fill, panel scheduling, and grounding.