We are converting this room into my daughter's room. Its about 10', 10" wide.

I'd like to cover these access panels:

They are 33" from the wall on the left. One access if for our outdoor hose that we need access to 2x a year to turn hose on and off for the winter. The other access is for our sewer trap that needs access to clean 2x a year. So 4x a year we need to access these panels.

My idea is to vertical shiplap over them. With a section apx 33" wide being removable. How can that be done to be removable?

I have been considering shiplap sheets like these. But how can I make it so the panel can be removed and put back on? Any ideas that would keep the panel flush with the rest of the wall?

I'm imaginging some sort of fastner that goes into the wall like a wall screw anchor. And you can pop it in and out.

Any ideas for how to fasten? Or open to any other ideas how to cover these panels other than art work. Thanks!