• I want to be able to get to shower plumbing from the back. No showers against outer walls please.

Good website for bathroom considerations.

See link above for 6'x6' corner shower half bath. I love it for second bathrooms. Ah! but it's hard to put against outer walls, I want to be able to access shower plumbing from the back.

lesson 8 in link above, good 3/4 bath is 4'x 8'. Can put shower plumbing in either front or back wall.