top of page
BG-texture_light.png

Wireway Calculator

A supplement to our raceway fill calculator, our wireway calculator accounts for minimum space required by the NEC for for bending and splicing

WIREWAY CALCULATOR

Wire-bending space

Minimum space for deflection of conductions at terminals, and minimum width of gutters & wireways

Pull box, jbox, and wireway dimensions

Minimum dimensions for boxes, wireways, & gutters that:

  1. Contain conductors of 4 AWG & larger and

  2. Utilize angle pulls or splices

NEC Article References

Article 312: Cabinets, Cutout Boxes, and Meter Socket Enclosures

312.6

Deflection of conductors

NEC 2023

Table 312.6(A)

Table 312.6(B)(2)

Article 314: Outlet, Device, Pull, and Junction Boxes; Conduit Bodies; Fittings

314.28

Pull and junction boxes and conduit bodies

NEC 2023

314.28(A)(2)

314.28(A)(2) Exception

Article 376: Metal Wireways

376.23

Insulated Conductors

NEC 2023

376.23(A)

376.23(B)

background texture showing a close-up view of a blueprint

Want to check out more free tools?

bottom of page