Boxes, Conduit & Strut

2+ products

Expected delivery: Wed, Nov 18

Electrical boxes, conduit and strut channel for building, plant and equipment installs. Boxes include steel and PVC device boxes, 4 in. square and octagon boxes, handy boxes, weatherproof boxes, covers and mud rings. Conduit comes in EMT, rigid metal, PVC Schedule 40 and 80, flexible metal and liquidtight, with matching connectors, couplings, straps and conduit bodies. Strut channel is offered in pre-galvanized, hot-dip galvanized and stainless finishes, with spring nuts, pipe clamps, beam clamps and fittings.

What to check before you order

  • Trade size. Conduit and fittings are sold by trade size, such as 1/2 in., 3/4 in. and 1 in. The fitting must match both the conduit type and size.
  • Set screw or compression. EMT fittings come in both styles. For damp or wet locations, choose fittings listed for that use.
  • Box size. How many conductors and devices a box can hold is set by box fill rules in code. Let your electrician confirm the size.
  • Strut finish. Pre-galvanized is common indoors. Hot-dip galvanized or stainless suits outdoor and corrosive areas. Use the strut maker's published load data for any support design.

Installation should be done by a qualified person to the National Electrical Code and local code. Threaded rod for hanging strut is under threaded rod and studs, pipe supports are under pipe hangers and supports, and more is in electrical.

Common questions

What is the difference between EMT and rigid conduit?

EMT is thin-wall steel tubing joined with unthreaded set screw or compression fittings. Rigid metal conduit has a heavier, threaded wall for more physical protection. Code sets where each may be used.

What size is standard strut channel?

Common strut channel is 1-5/8 in. wide, in full-height 1-5/8 in. and shallow 13/16 in. profiles. Match spring nuts and fittings to the channel size.

Popular boxes, conduit & strut

More in Electrical