After I clean up my Ensuite a bit more, I will try to get started on this project again.
I was looking at my diagrams for the plumbing layout and realized that the drain pipe for the washing machine might get in the way of accessing the dryer vent from behind the machine. It's an exterior wall so I'm not running the pipe through the wall- I'm having it against the wall behind the machines. My state's plumbing code allows for 6' run of a 2" trap arm and its less than 6' to reach the wall. Now, I could run it all the way into the wall if I could get it to go through the floor there so I can have the vent pipe meet up with the main vent stack more easily & with fewer fittings. I could put the cleanout sticking out of the wall a bit. Or, I could just put it next to the wall and have the cleanout facing a different direction to make it easier to use.
I'm also re-evaluating my thoughts of putting shelves level with the washing machine/dryer behind them and am thinking of putting an acrylic sheet/plexiglass over the top and extending it all the way to the wall so it will cover the gap between the machines & the walls. I can have ledgers to support it on the walls. It can have some sort of bumpers put on it to keep it from sliding, but if I need to remove it, I can take it off to access stuff. I'm also thinking of lower the laundry box from the sketch and having it recess slightly into the wall. The plexiglass can be notched to go around the box but still allow access to the shutoffs.
I had to move the height of the trap arm for the standpipe so it won't get in the way of the dryer vent. I'll put some sort heat barrier insulation between the pipe and the vent just in case.
This is my rough sketch thus far (I haven't rounded off the plexi sheet in this sketch or done any notching. If there is enough room, I may push the box closer to the side partial wall so it will block stuff from falling behind it into a hole for the washing machine plug-- which will be GFCI and placed above the box.
I need to find the 2" cleanout fitting sketchup model to add in, but it would be on the pipe to the right. I could always merge the pipe in lower. Need to locate studs as nothing was done properly in this house.
I'm looking at using
https://www.homedepot.com/p/OPTIX-36-in-x-72-in-x-093-in-Acrylic-Sheet-MC-10/202038046 but I may have an old plexiglass sheet in the workshop.
I'm considering this instead of plywood because it will allow the color of the machines to show through and allow the light to come up from the window. It will also make it a bit easier to see under there.
Any thoughts/suggestions?