Shower Drain Size and Code

[Hackney plumbing]

I've never seen a 1.5" Shower drain.

Most times we set in a 2"-1.5" bushing or go with a 2" piece of pipe and a 2"x1.5" MJ No-Hub fitting.

JW

Sioux Chief sells them. 1.5" hub x 2" spigot. Two connections built into one drain.