bathroom addition

I am currently adding new DWV plumbing for new fixtures to extend a master bathroom space located on the second story. The new addition consists of a soaker tub located under and exterior window between two lavs. All fixtures are located on an exterior wall. I am trying to figure the easiest way...

Hey guys, I’m adding a new bathroom with washer and dryer in my shop. I’ve attached the drawing. Washer first then vanity then toilet last is shower. Where should I place wet venting. I was thinking at the lav? But not sure if I need to add one more where the shower at. Thanks for your help