Conduit fill, bending, pull box sizing, support spacing, and cable tray calculators.
Calculate offset bends, stub-ups, and back-to-back bends for EMT conduit with deduction and shrinkage values.
Size pull and junction boxes per NEC 314.28 for straight pulls, angle pulls, and U-pulls.
Determine conduit support and strap spacing per NEC requirements for EMT, rigid, PVC, and flexible conduit.
Plan how many conductors of different sizes fit in a conduit with NEC 40% fill limit visualization.
Size cable trays per NEC 392 based on cable count, diameter, tray type, and future expansion needs.
Calculate PVC conduit thermal expansion and contraction with temperature changes to determine expansion fitting needs.
Size equipment grounding conductors per NEC 250.122 based on overcurrent protection device rating.