Hi everyone,
Our plumber inspected and provided quotes for the job of converting our laundry room into a toliet.


Basically we want to install a toliet and close off the door.
Due to a lack of experience, when the plumber asked us "how do you want to close off the door? because the brick cannot be found easily." We dont know what are the alternatives and just said then use "boards". Very ambiguous.
So the job description in the quote we received :
-The removal of back door, framing out and sheeting in laundry.
-The installation of new P trap china toilet with water and waste connection to sewer and water line at back of house.
-The tiling of skirt tiles behind toilet.
-The achitraving around blue board where connected to blockwork. (Owners to paint external blue board section.)
What cost effective and weatherproof board should we consider and tell our plumber to use?
Thank you for any suggestion