Questions and Answers for Allied Tube and Conduit 1/2 in. x 10 ft. Electric Metallic Tube (EMT) Conduit

A:  Home Depot unfortunately does not cut the conduit in store.

A:  It's called a Sawz-all/Reciprocating saw

A:  Can be cut with a variety of tools, but if your tool game is lacking, this can be cut with a hack saw (metal blade, obviously). I do not believe Home Depot will cut this for you.

A:  yes

A:  The nominal inside diameter is 1/2 inch. The nominal outside diameter is 7/8 inch.

A:  There's a nice chart for EMT here: www.engineeringtoolbox.com/conduit-size-d_1738.html ID: 0.622in. (15.8mm) OD: 0.706in. (17.9mm)

A:  The outside diameter is 17.33mm and the nominal wall thickness is 1.07mm and interior diameter is 15.8mm

A:  I measured OD as 0.704", and ID as 0.646".

A:  Inside diameter is 0.622”

A:  There is no defined limit. The maximum temperature is normally defined by the temperature rating of the wires in it, which is typically 90 degrees Celsius (194 F.). If used for a purpose other than wiring, the limiting factor is the heat resistance of the zinc coating, which is several hundred degrees F.

A:  EMT does not have a temperature rating. Typically, only the nonmetallic conduit and tubing products have temperature ratings.

A:  I don't think so, I think it would be likely to bend

A:  I would use schedule 40 pipe for a lumber rack.  EMT conduit is thin wall and not made for structural purposes.

A:  I would not use this for any load-bearing application. This is designed to bend.

A:  Thin wall conduit does not have much "tensile" strength, if the loading is above 40-50 lbs it is going to bend

A:  No

A:  One 10' piece of 1/2" EMT Conduit is 3.0 lbs.

A:  3.5lbs

A:  Yes it can and you will have to use compression fittings if you are using it outside and for electrical use

A:  Yes, it will not be affected by the chemicals used in pt lumber. It is, like all metals, affected by moisture (rust) over time if installed outside. PVC is best unless in a hazardous location.

A:  Uncertain, but I would expect not: the pressure treatment could be corrosive. I would suggest using PVC instead.

A:  Use connectors to make them longer.

A:  Depends on what you are using them for. As electrical conduit, you need to use the conduit connectors to comply with NEC code. Welding them would void thier UL listed status. Having said that, they are easy to TIG weld for any other purpose than electrical conduit. Wear breathing protection because the galvanized coating can produce toxic gas.

A:  I have welded them into a wire caddy, but never to make longer. For that you need to purchase a 1/2" EMT coupling for around 50 cents.

A:  No it’s thinwall emt

A:  No.

A:  These are very thin walled pipes and they're galvanized and lined with paint so I don't think welding would work very well. They can be linked with set screw or compression couplings as intended for electrical applications.

A:  Please refer to the conduit fill chart published by the NEC: https://electricalestimating101.com/wp-content/uploads/2019/06/NEC-Table-C-Combined-Conduit-Types-THHN-XHHW.pdf

A:  I always ran one 14 or 12 . You have to watch the bends and box connectors. You don’t want to damage the wire by overfilling the conduit 

A:  one romex. 14/2 or 12/2. If you want more go to 3/4.. Nec code.. you can fit two in 3/4.

A:  You can fit 3 -14/2 and 2 -12/2

A:  Yes, they do have a brand stamped on them, but once they're painted (primer + 2 coats of satin black) it's not noticeable.

A:  no. just a sticker that can be cleaned off

A:  Yes it can. With approved raintite boxes and fittings.

A:  Yes this is intended for outdoor use and will not rust.