ECN Forum Forums Code Related Discussion NEC & other Code issues 1900 box??

I call the 4 11/16"s "2100 boxes". Anyone else?

Here in Maryland it's
4 square box = 1900 box
4 11/16 box = 11B box
octagon box = 8B

4 square box = 1900 box
4 11/16 box = 11B box
octagon box = 8B

That's exactly what I learned in SW Pa. in the late 70's. Do you also refer to "deep 1900s" for > 1-1/4" ?
Joe

4 inch square - 1900 box
4 11/16 - 4&11 box

4 square box = 1900 box
4 11/16 box = 11B box
octagon box = 8B

Same in the Chicagoland marketplace

Indeed, here in NYC we call them:

4 square boxes: 1900 boxes
4 11/16" boxes: 5x5 boxes
octagon boxes: round boxes