# What are the dimensions of EMT conduit?

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## What size is EMT conduit?

Electrical Metallic Tubing (EMT) and True Color EMT

Trade Size Metric Approx Weight/100 Ft (30.5M)
1/2 16 13.60
3/4 21 20.90
1 27 30.40
1 1/4 35 45.80

## Is conduit measured by ID or OD?

Tubing is measured by the OUTSIDE DIAMETER (O.D.), specified in inches (e.g., 1.250) or fraction of an inch (eg. 1-1/4″). Pipe is usually measured by NOMINAL PIPE SIZE (NPS).

## What are standard conduit sizes?

Some typical US Customary trade sizes for conduit are ½, ¾, 1, and up to 4. Outside the US, conduit sizes are typically measured in millimeters and are based on the outer diameter. Some common metric outer diameter sizes are 20 mm, 25 mm, 32 mm, 40 mm and 50 mm.

## How thick is EMT conduit?

E-Z Pull Electrical Metallic Tubing (EMT) and True Color EMT

Trade Size Metric Designator Nominal Wall Thickness2
1 27 0.057
1-1/4 35 0.065
1-1/2 41 0.065
2 53 0.065

## What is EMT conduit?

EMT conduit is a raceway solution which allows for future wiring changes and provides excellent mechanical protection to conductors and cables. EMT provides EMI shielding and is 100% recyclable. Allied Tube & Conduit®‘s mission is to be the leader in providing solutions and more choices for customers.

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## How is conduit size determined?

Calculate the total diameter of the wires to determine the diameter of the conduit when placing wires of different gauge and type inside the conduit. Find the wire diameter in table 5 for each gauge wire and type. Multiply the number of wires for each gauge and type by the wire diameter. Total the results.

## How do I choose conduit size?

Number of cables in your conduit. Cross-section area of your cables. Number of bends in your conduit.

Step 3: Find the conduit’s minimum space available

1. One wire: maximum fill is 53% of the space inside a conduit.
2. Two wires: maximum fill is 31%
3. Three wires or more: maximum fill is 40% of the conduit’s total available space.

## What is the minimum size of EMT?

EMT is available in trade sizes 1/2″ through 4″, and 10′ and 20′ lengths. Some manufacturers also produce EMT in a range of colors for easy system identification.

## What is the maximum size of EMT?

There are minimum and maximum trade sizes that are allowed to be used as EMT. They must be no smaller than 1/2″ and no larger than 4.” You can’t just take a piece of 6″ pipe, slap some conductors in it, and call it EMT.

## What is the largest size of EMT?

The maximum size of EMT shall be metric designator 103 (trade size 4).

## Is EMT conduit ID or OD?

Electrical Metallic Tubing (EMT) – Thinwall Conduit