Thanks for the replys, as for the boxes could I get away with a 4x4 & mudring (duct tape it up) or do you prefer the masonry boxesWe install EMT in concrete quite often. There are advantages and disadvantages to using it in concrete. If it can be installed so that it won't be damaged during the pour then it's okay to use.
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We use both types. For single gang applications with one device the masonry box is fine. If you're looking to pipe from one box to another than either a 4" or 4 11/16" box with a mud ring would be better.Thanks for the replys, as for the boxes could I get away with a 4x4 & mudring (duct tape it up) or do you prefer the masonry boxes
rust or deterioration at the point of where the emt leaves the encased tomb of concrete
Ground floor concrete slab is wet location so no emt there
Article 100
Location, Wet. Installations underground or in concrete slabs or masonry in direct contact with the earth; in loca- tions subject to saturation with water or other liquids, such as vehicle washing areas; and in unprotected locations ex- posed to weather.