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Electricalaka: EMTaka: rigid conduitaka: flex conduitaka: pipe

Conduit

In Plain English

A pipe that protects electrical wires as they run through walls, ceilings, and exposed areas.

Definition

A rigid or flexible pipe or tube used to route and protect electrical wiring in buildings and infrastructure. Common types include EMT (electrical metallic tubing), rigid metal conduit (RMC), PVC conduit, and flexible metal conduit (FMC). Conduit protects conductors from physical damage and allows wire replacement without opening walls.

Why It Matters in Bidding

Conduit is taken off by linear foot per type and trade size, and the labor to bend, run, and support it often exceeds the material cost, so productivity assumptions drive the bid. Estimators must match conduit type to the spec and environment (EMT, RMC, PVC, FMC), count fittings, straps, and boxes, and coordinate with the conductor takeoff so the raceway size carries the required wire fill.

Example

An estimator takes off 2,400 feet of 3/4-inch EMT for branch circuits, adds couplings, connectors, and supports per spacing requirements, then applies a labor rate for bending and installation before pairing it with the matching conductor quantities.

Related Terms

ConductorRacewayCable TrayWire Gauge

Frequently Asked Questions

Estimators measure runs by linear foot for each conduit type and trade size, then add fittings, couplings, connectors, supports, and boxes at spacing the code and spec require. Labor is the larger component, so productivity rates for bending and installation are applied based on conduit type and field conditions.
The specification and installation environment decide: EMT for typical dry interior runs, rigid metal where physical protection is needed, PVC for underground or corrosive areas, and flexible conduit for equipment connections. Estimators price the type each location requires rather than defaulting to the cheapest, since substitutions can fail inspection.
Conduit must be sized for the wire fill it carries, so the raceway and conductor quantities are interdependent. Estimating them together ensures the specified conduit size accommodates the conductors and required derating. Doing the takeoffs separately risks undersized raceway, fill-code violations, or mismatched quantities that surface as costly changes during installation.

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